10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)
☑	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended		March 31, 2024
	OR
☐	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from                      to

Commission file number 001-13783

IES Holdings, Inc.

(Exact name of registrant as specified in its charter)

Delaware	76-0542208
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)

2 Riverway, Suite 1730, Houston, Texas 77056

(Address of principal executive offices and zip code)

Registrant’s telephone number, including area code: (713) 860-1500

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol	Name of each exchange on which registered
Common Stock, par value $0.01 per share	IESC	NASDAQ Global Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.     Yes ☑ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).     Yes ☑ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☐	Accelerated filer	☑
Non-accelerated filer	☐	Smaller reporting company	☐
Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☑

On April 30, 2024, there were 20,243,458 shares of common stock outstanding.

1

IES HOLDINGS, INC. AND SUBSIDIARIES

INDEX

			Page
PART I. FINANCIAL INFORMATION
	Item 1. Financial Statements
		Condensed Consolidated Balance Sheets as of March 31, 2024 and September 30, 2023	6
		Condensed Consolidated Statements of Comprehensive Income for the Three and Six Months Ended March 31, 2024 and 2023	7
		Condensed Consolidated Statements of Stockholders’ Equity for the Three and Six Months Ended March 31, 2024 and 2023	9
		Condensed Consolidated Statements of Cash Flows for the Six Months Ended March 31, 2024 and 2023	10
		Notes to Condensed Consolidated Financial Statements	11
	Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations		24
	Item 3. Quantitative and Qualitative Disclosures About Market Risk		36
	Item 4. Controls and Procedures		36
PART II. OTHER INFORMATION
	Item 1. Legal Proceedings		37
	Item 1A. Risk Factors		37
	Item 2. Unregistered Sales of Equity Securities and Use of Proceeds		37
	Item 3. Defaults Upon Senior Securities		37
	Item 4. Mine Safety Disclosures		37
	Item 5. Other Information		37
	Item 6. Exhibits		38
	Signatures		39

2

PART I. FINANCIAL INFORMATION

DEFINITIONS

In this Quarterly Report on Form 10-Q, the words “IES”, the “Company”, the “Registrant”, “we”, “our”, “ours” and “us” refer to IES Holdings, Inc. and, except as otherwise specified herein, to our subsidiaries.

DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS

This Quarterly Report on Form 10-Q includes certain statements that may be deemed “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, all of which are based upon various estimates and assumptions that the Company believes to be reasonable as of the date hereof. In some cases, you can identify forward-looking statements by terminology such as “may,” “will,” “could,” “should,” “expect,” “plan,” “project,” “intend,” “anticipate,” “believe,” “seek,” “estimate,” “predict,” “potential,” “pursue,” “target,” “continue,” the negative of such terms or other comparable terminology. These statements involve risks and uncertainties that could cause the Company’s actual future outcomes to differ materially from those set forth in such statements. Such risks and uncertainties include, but are not limited to:

•a general reduction in the demand for our products or services;

•changes in general economic conditions, including market and macro-economic disruptions resulting from the ongoing Ukraine and Israel conflicts, trade tensions between the U.S. and China, or other geo-political events;

•competition in the industries in which we operate, both from third parties and former employees, which could result in the loss of one or more customers or lead to lower margins on new projects;

•our ability to successfully manage projects, the cost and availability of qualified labor and the ability to maintain positive labor relations, and our ability to pass along increases in the cost of commodities used in our business, in particular, copper, aluminum, steel, fuel, electronic components and certain plastics;

•supply chain disruptions due to our suppliers' access to materials and labor, their ability to ship products timely, or credit or liquidity problems they may face;

•the impact of future epidemics or pandemics on our business, including the potential for new or continued job site closures or work stoppages, supply chain disruptions, delays in awarding new project bids, construction delays, reduced demand for our services, delays in our ability to collect from our customers, the impact of third party vaccine mandates on employee recruiting and retention, or illness of management or other employees;

•credit and capital market conditions, including changes in interest rates that affect the cost of construction financing and mortgages, and the inability of some of our customers to retain sufficient financing at acceptable rates, which could lead to project delays or cancellations;

•inaccurate estimates used when entering into fixed-price contracts, the possibility of errors when estimating revenue and progress to date on percentage-of-completion contracts, and complications associated with the incorporation of new accounting, control and operating procedures;

•our ability to enter into, and the terms of, future contracts;

•the inability to carry out plans and strategies as expected, including the inability to identify and complete acquisitions that meet our investment criteria in furtherance of our corporate strategy, or the subsequent underperformance of those acquisitions;

•challenges integrating new businesses into the Company or new types of work, products or processes into our segments;

•backlog that may not be realized or may not result in profits;

•failure to adequately recover on contract change orders or claims against customers;

•closures or sales of our facilities resulting in significant future charges, including potential warranty losses or other unexpected liabilities, or a significant disruption of our operations;

•the impact of seasonality, adverse weather conditions, and climate change;

3

•an increased cost of surety bonds affecting margins on work and the potential for our surety providers to refuse bonding or require additional collateral at their discretion;

•fluctuations in operating activity due to downturns in levels of construction or the housing market, seasonality and differing regional economic conditions;

•increases in bad debt expense and days sales outstanding due to liquidity problems faced by our customers;

•accidents resulting from the physical hazards associated with our work and the potential for accidents;

•the possibility that our current insurance coverage may not be adequate or that we may not be able to obtain policies at acceptable rates;

•the effect of litigation, claims and contingencies, including warranty losses, damages or other latent defect claims in excess of our existing reserves and accruals;

•interruptions to our information systems and cyber security or data breaches;

•liabilities under existing or potential future laws and regulations, including those laws and regulations related to the environment and climate change;

•expenditures to comply with future changes in laws and regulations, including environmental laws and regulations and those relating to climate change;

•loss of key personnel, ineffective transition of new management, or inability to transfer, renew and obtain electrical and other professional licenses;

•the possibility that the value of certain tax benefits may be reduced by a decrease in the federal tax rate;

•the recognition of tax benefits related to uncertain tax positions and the potential for disagreements with taxing authorities with regard to tax positions we have adopted;

•the potential recognition of valuation allowances or write-downs on deferred tax assets;

•limitations on the availability of sufficient credit or cash flow to fund our working capital needs and capital expenditures, to complete acquisitions, and for debt service;

•difficulty in fulfilling the covenant terms of our revolving credit facility, including liquidity, and other financial requirements, which could result in a default and acceleration of any indebtedness under such revolving credit facility;

•uncertainties inherent in estimating future operating results, including revenues, operating income or cash flow;

•the recognition of potential goodwill, long-lived assets and other investment impairments;

•the existence of a controlling shareholder, who has the ability to take action not aligned with other shareholders or to dispose of all or any portion of the shares of our common stock it holds, which could trigger certain change of control provisions in a number of our material agreements, including our financing and surety arrangements and our executive severance plan;

•the relatively low trading volume of our common stock, which may make it more difficult for shareholders to sell a substantial number of shares for the same price at which shareholders could sell a smaller number of shares;

•the possibility that we issue additional shares of common stock, preferred stock or convertible securities that will dilute the percentage ownership interest of existing stockholders and may dilute the value per share of our common stock;

•the potential for substantial sales of our common stock, which could adversely affect our stock price;

•the impact of increasing scrutiny and changing expectations from investors and customers, or new or changing regulations, with respect to environmental, social and governance practices;

•the cost or effort required for our shareholders to bring certain claims or actions against us, resulting from our designation of the Court of Chancery of the State of Delaware as the sole and exclusive forum for certain types of actions and proceedings;

4

•the possibility that our internal controls over financial reporting and our disclosure controls and procedures may not prevent all possible errors that could occur; and

•other factors discussed elsewhere in this Quarterly Report on Form 10-Q.

You should understand that the foregoing, as well as other risk factors discussed in this document, including those listed in Part I, Item 1A of our Annual Report on Form 10-K for the fiscal year ended September 30, 2023, could cause future outcomes to differ materially from those experienced previously or those expressed in such forward-looking statements. We undertake no obligation to publicly update or revise any information, including information concerning our controlling shareholder, net operating losses, borrowing availability or cash position, or any forward-looking statements to reflect events or circumstances that may arise after the date of this report. Forward-looking statements are provided in this Quarterly Report on Form 10-Q pursuant to the safe harbor established under the Private Securities Litigation Reform Act of 1995 and should be evaluated in the context of the estimates, assumptions, uncertainties and risks described herein.

5

Item 1. Financial Statements

IES HOLDINGS, INC. AND SUBSIDIARIES

Condensed Consolidated Balance Sheets

(In Thousands, Except Share Information)

			March 31,		September 30,
			2024		2023
			(Unaudited)
ASSETS
CURRENT ASSETS:
	Cash and cash equivalents		$	105,969	$	75,770
	Accounts receivable:
		Trade, net of allowance of $1,887 and $1,649, respectively	416,657		363,836
		Retainage	86,992		76,934
	Inventories		104,612		95,655
	Costs and estimated earnings in excess of billings		48,284		48,620
	Prepaid expenses and other current assets		33,984		10,481
Total current assets			796,498		671,296
Property and equipment, net			67,820		63,410
Goodwill			92,395		92,395
Intangible assets, net			50,075		56,208
Deferred tax assets			21,276		20,383
Operating right of use assets			57,564		61,761
Other non-current assets			15,536		16,147
Total assets			$	1,101,164	$	981,600
LIABILITIES AND STOCKHOLDERS’ EQUITY
CURRENT LIABILITIES:
	Accounts payable and accrued expenses		306,463		296,797
	Billings in excess of costs and estimated earnings		127,767		103,771
Total current liabilities			434,230		400,568
Long-term debt			—		—
Operating long-term lease liabilities			38,175		42,098
Other tax liabilities			22,799		22,047
Other non-current liabilities			10,996		16,951
Total liabilities			506,200		481,664
Noncontrolling interest			60,158		49,951
STOCKHOLDERS’ EQUITY:
	Preferred stock, $0.01 par value, 10,000,000 shares authorized, none issued
		and outstanding	—		—
	Common stock, $0.01 par value, 100,000,000 shares authorized; 22,049,529
		issued and 20,243,458 and 20,194,218 outstanding, respectively	220		220
	Treasury stock, at cost, 1,806,071 and 1,855,311 shares, respectively		(50,428)		(49,450)
	Additional paid-in capital		204,088		203,431
	Retained earnings		380,926		295,784
Total stockholders’ equity			534,806		449,985
Total liabilities and stockholders’ equity			$	1,101,164	$	981,600

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

6

IES HOLDINGS, INC. AND SUBSIDIARIES

Condensed Consolidated Statements of Comprehensive Income

(In Thousands, Except Share Information)

(Unaudited)

		Three Months Ended March 31,
		2024		2023
Revenues		$	705,733	$	568,881
Cost of services		534,120		467,955
	Gross profit	171,613		100,926
Selling, general and administrative expenses		95,272		69,349
Contingent consideration		—		69
Gain on sale of assets		(1,373)		(102)
	Operating income	77,714		31,610
Interest and other (income) expense:
Interest expense		406		1,049
Other (income) expense, net		1,136		(1,768)
Income from operations before income taxes		76,172		32,329
Provision for income taxes		19,372		8,157
Net income		56,800		24,172
Net income attributable to noncontrolling interest		(3,891)		(2,621)
Comprehensive income attributable to IES Holdings, Inc.		$	52,909	$	21,551
Earnings per share attributable to common stockholders of IES Holdings, Inc.:
	Basic	$	2.32	$	0.93
	Diluted	$	2.29	$	0.92
Shares used in the computation of earnings per share:
	Basic	20,227,342		20,170,824
	Diluted	20,479,755		20,387,796

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

7

IES HOLDINGS, INC. AND SUBSIDIARIES

Condensed Consolidated Statements of Comprehensive Income

(In Thousands, Except Share Information)

(Unaudited)

		Six Months Ended March 31,
		2024		2023
Revenues		$	1,340,177	$	1,143,755
Cost of services		1,024,760		947,391
	Gross profit	315,417		196,364
Selling, general and administrative expenses		181,122		137,117
Contingent consideration		35		138
Gain on sale of assets		(1,444)		(13,162)
	Operating income	135,704		72,271
Interest and other (income) expense:
Interest expense		803		2,233
Other income, net		(257)		(1,073)
Income from operations before income taxes		135,158		71,111
Provision for income taxes		34,770		18,185
Net income		100,388		52,926
Net income attributable to noncontrolling interest		(6,523)		(4,973)
Comprehensive income attributable to IES Holdings, Inc.		$	93,865	$	47,953
Earnings per share attributable to common stockholders of IES Holdings, Inc.:
	Basic	$	4.21	$	2.08
	Diluted	$	4.16	$	2.06
Shares used in the computation of earnings per share:
	Basic	20,213,421		20,206,814
	Diluted	20,449,691		20,414,492

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

8

IES HOLDINGS, INC. AND SUBSIDIARIES

Condensed Consolidated Statements of Stockholders’ Equity (unaudited)

(In Thousands, Except Share Information)

		Three Months Ended March 31, 2024
		Common Stock			Treasury Stock			Additional Paid-In Capital		Retained Earnings		Total Stockholders' Equity
		Shares	Amount		Shares	Amount
BALANCE, December 31, 2023		22,049,529	$	220	(1,835,553)	$	(49,521)	$	203,986	$	333,958	$	488,643
	Issuances under compensation plans	—		—	50,000		1,355		(1,355)		—		—
	Acquisition of treasury stock	—		—	(21,518)		(2,289)		—		—		(2,289)
	Option exercised	—		—	1,000		27		(19)		—		8
	Non-cash compensation	—		—	—		—		1,476		—		1,476
	Increase in noncontrolling interest	—		—	—		—		—		(5,941)		(5,941)
	Net income attributable to IES Holdings, Inc.	—		—	—		—		—		52,909		52,909
BALANCE, March 31, 2024		22,049,529	$	220	(1,806,071)	$	(50,428)	$	204,088	$	380,926	$	534,806

		Three Months Ended March 31, 2023
		Common Stock			Treasury Stock			Additional Paid -In Capital		Retained Earnings		Total Stockholders' Equity
		Shares	Amount		Shares	Amount
BALANCE, December 31, 2022		22,049,529	$	220	(1,875,676)	$	(49,653)	$	200,940	$	226,544	$	378,051
	Acquisition of treasury stock	—		—	(4,332)		(151)		3		—		(148)
	Options exercised	—		—	2,000		53		(39)		—		14
	Non-cash compensation	—		—	—		—		1,054		—		1,054
	Increase in noncontrolling interest	—		—	—		—		—		(2,771)		(2,771)
	Net income attributable to IES Holdings, Inc.	—		—	—		—		—		21,551		21,551
BALANCE, March 31, 2023		22,049,529	$	220	(1,878,008)	$	(49,751)	$	201,958	$	245,324	$	397,751

		Six Months Ended March 31, 2024
		Common Stock			Treasury Stock			Additional Paid -In Capital		Retained Earnings		Total Stockholders' Equity
		Shares	Amount		Shares	Amount
BALANCE, September 30, 2023		22,049,529	$	220	(1,855,311)	$	(49,450)	$	203,431	$	295,784	$	449,985
	Issuances under compensation plans	—		—	82,180		2,213		(2,213)		—		—
	Acquisition of treasury stock	—		—	(33,940)		(3,218)		—		—		(3,218)
	Options exercised	—		—	1,000		27		(19)		—		8
	Non-cash compensation	—		—	—		—		2,889		—		2,889
	Increase in noncontrolling interest	—		—	—		—		—		(8,723)		(8,723)
	Net income attributable to IES Holdings, Inc.	—		—	—		—		—		93,865		93,865
BALANCE, March 31, 2024		22,049,529	$	220	(1,806,071)	$	(50,428)	$	204,088	$	380,926	$	534,806

		Six Months Ended March 31, 2023
		Common Stock			Treasury Stock			Additional Paid -In Capital		Retained Earnings		Total Stockholders' Equity
		Shares	Amount		Shares	Amount
BALANCE, September 30, 2022		22,049,529	$	220	(1,707,629)	$	(44,000)	$	201,871	$	203,197	$	361,288
	Issuances under compensation plans	—		—	71,013		1,843		(1,843)		—		—
	Acquisition of treasury stock	—		—	(243,392)		(7,647)		10		—		(7,637)
	Options exercised	—		—	2,000		53		(39)		—		14
	Non-cash compensation	—		—	—		—		1,959		—		1,959
	Increase in noncontrolling interest	—		—	—		—		—		(5,826)		(5,826)
	Net income attributable to IES Holdings, Inc.	—		—	—		—		—		47,953		47,953
BALANCE, March 31, 2023		22,049,529	$	220	(1,878,008)	$	(49,751)	$	201,958	$	245,324	$	397,751

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

9

IES HOLDINGS, INC. AND SUBSIDIARIES

Condensed Consolidated Statements of Cash Flows

(In Thousands)

(Unaudited)

			Six Months Ended March 31,
			2024		2023
CASH FLOWS FROM OPERATING ACTIVITIES:
	Net income		$	100,388	$	52,926
	Adjustments to reconcile net income to net cash provided by operating activities:
		Bad debt expense		503		330
		Deferred financing cost amortization		140		132
		Depreciation and amortization		15,438		13,252
		Gain on sale of assets		(1,444)		(13,162)
		Non-cash compensation expense		2,925		1,956
		Deferred income tax expense		1,932		6,955
		Unrealized loss on trading securities		1,790		—
	Changes in operating assets and liabilities:
		Accounts receivable		(53,324)		35,660
		Inventories		(8,957)		(11,798)
		Costs and estimated earnings in excess of billings		336		4,120
		Prepaid expenses and other current assets		(35,252)		(11,672)
		Other non-current assets		290		1,728
		Accounts payable and accrued expenses		9,462		(30,454)
		Billings in excess of costs and estimated earnings		23,996		10,109
		Other non-current liabilities		470		(23)
Net cash provided by operating activities				58,693		60,059
CASH FLOWS FROM INVESTING ACTIVITIES:
	Purchases of property and equipment			(13,359)		(6,677)
	Proceeds from sale of assets			2,375		19,124
	Cash paid in conjunction with equity investments			(380)		(165)
Net cash provided by (used in) investing activities				(11,364)		12,282
CASH FLOWS FROM FINANCING ACTIVITIES:
	Borrowings of debt			1,346,388		1,162,971
	Repayments of debt			(1,346,388)		(1,230,519)
	Cash paid for finance leases			(1,981)		(1,617)
	Settlement of contingent consideration liability			(4,074)		—
	Distribution to noncontrolling interest			(7,865)		(5,272)
	Purchase of treasury stock			(3,218)		(7,637)
	Options exercised			8		14
Net cash used in financing activities				(17,130)		(82,060)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS				30,199		(9,719)
CASH AND CASH EQUIVALENTS, beginning of period				75,770		24,848
CASH AND CASH EQUIVALENTS, end of period			$	105,969	$	15,129
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
		Cash paid for interest	$	269	$	1,765
		Cash paid for income taxes, net	$	37,449	$	4,660

The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

10

IES HOLDINGS, INC. AND SUBSIDIARIES

Notes to the Condensed Consolidated Financial Statements

(All Amounts in Thousands Except Share Amounts)

(Unaudited)

1. BUSINESS AND ACCOUNTING POLICIES

Description of the Business

IES Holdings, Inc. designs and installs integrated electrical and technology systems and provides infrastructure products and services to a variety of end markets, including data centers, residential housing and commercial and industrial facilities. Our operations are organized into four business segments, based upon the nature of our services:

•Communications – Nationwide provider of technology infrastructure services, including the design, build, and maintenance of the communications infrastructure within data centers for co-location and managed hosting customers, for both large corporations and independent businesses.

•Residential – Regional provider of electrical installation services for single-family housing and multi-family apartment complexes, as well as heating, ventilation and air conditioning (HVAC) and plumbing installation services in certain markets.

•Infrastructure Solutions – Provider of electro-mechanical solutions for industrial operations, including apparatus repair and custom-engineered products such as generator enclosures used in data centers and other industrial applications.

•Commercial & Industrial – Provider of electrical and mechanical design, construction, and maintenance services to the commercial and industrial markets in various regional markets and nationwide in certain areas of expertise, such as the power infrastructure market and data centers.

The words “IES”, the “Company”, “we”, “our”, and “us” refer to IES Holdings, Inc. and, except as otherwise specified herein, to our consolidated subsidiaries.

Seasonality and Quarterly Fluctuations

Results of operations from our Residential segment can be seasonal, depending on weather trends, with typically higher revenues generated during spring and summer and lower revenues generated during fall and winter. The Commercial & Industrial, Communications and Infrastructure Solutions segments of our business are less subject to seasonal trends, as work in these segments generally is performed inside structures protected from the weather, although weather can still impact these businesses, especially in the early stages of projects. From quarter to quarter, results for our Communications, Residential, and Commercial & Industrial segments may be materially affected by the timing of new construction projects, and our volume of business may be adversely affected by declines in construction projects resulting from adverse regional or national economic conditions. Quarterly results for our Infrastructure Solutions segment may be affected by the timing of outages or capital projects at our customers’ facilities. Accordingly, operating results for any fiscal period are not necessarily indicative of results that may be achieved for any subsequent fiscal period.

Basis of Financial Statement Preparation

The accompanying unaudited Condensed Consolidated Financial Statements include the accounts of IES, our wholly-owned subsidiaries, and entities that we control due to ownership of a majority of voting interest and have been prepared in accordance with the instructions to interim financial reporting as prescribed by the United States Securities and Exchange Commission (the “SEC”). The results for the interim periods are not necessarily indicative of results for the entire year. These interim financial statements do not include all disclosures required by U.S. generally accepted accounting principles (“GAAP”) and should be read in conjunction with the consolidated financial statements and notes thereto filed with the SEC in our Annual Report on Form 10-K for the fiscal year ended September 30, 2023. In the opinion of management, the unaudited Condensed Consolidated Financial Statements contained in this report include all known accruals and adjustments necessary for a fair presentation of the financial position, results of operations, and cash flows for the periods reported herein. Any such adjustments are of a normal recurring nature.

Noncontrolling Interest

In connection with our acquisitions of Edmonson Electric, LLC and Bayonet Plumbing, Heating & Air-Conditioning, LLC (“Bayonet”) in fiscal 2021, and NEXT Electric, LLC in fiscal 2017, we acquired an 80 percent interest in each of the entities, with the remaining 20 percent interest in each such entity being retained by the respective third-party seller. The interests retained by those third-party sellers are identified on our Condensed Consolidated Balance Sheets as noncontrolling interest, classified outside of permanent equity. Under the terms of each entity’s operating agreement, after five years from the date of the acquisition, we may elect to purchase, or the third-party seller may require us to purchase, part or all of the remaining 20 percent interest in the applicable entity. In each case, the purchase price is variable, based on a multiple of earnings as defined in the applicable operating agreement. Therefore, each noncontrolling interest is carried at the greater of the balance determined under Accounting Standards Codification

11

(“ASC”) 810 and the redemption amounts assuming the noncontrolling interest was redeemable at the balance sheet date. If all of the noncontrolling interests remaining outstanding at March 31, 2024 had been redeemable at that date, the aggregate redemption amount would have been $60,158.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires the use of estimates and assumptions by management in determining the reported amounts of assets and liabilities, disclosures of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates are primarily used in our revenue recognition of construction in progress, fair value assumptions in accounting for business combinations, stock-based compensation, reserves for legal matters, and realizability of deferred tax assets and unrecognized tax benefits.

Accounting Standards Recently Adopted

In October 2021, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers (“ASU 2021-08”). This standard amends the existing guidance under ASC 805 to add contract assets and contract liabilities to the list of exceptions to the recognition and measurement principles that apply to business combinations. Under this standard, the acquirer of a business is expected to recognize and measure acquired contract assets and contract liabilities as if the acquirer entered into the original contract on the same date with the same terms in accordance with ASC 606 rather than at fair value on the date of acquisition. This update is effective for fiscal years beginning after December 15, 2022 and for interim periods within that year. We adopted this standard on October 1, 2023 using the prospective method. ASU 2021-08 will impact how we account for future business combinations.

2. CONTROLLING STOCKHOLDER

Tontine Associates, L.L.C. (“Tontine Associates”), together with its affiliates (collectively, “Tontine”), is the Company’s controlling stockholder, owning approximately 56 percent of the Company’s outstanding common stock based on Amendment No. 29 to the Schedule 13D filed by Tontine with the SEC on March 15, 2024 and the Company's shares outstanding as of April 30, 2024. Accordingly, Tontine has the ability to exercise significant control over our affairs, including the election of directors and most actions requiring the approval of stockholders.

While Tontine is subject to certain restrictions under federal securities laws on sales of its shares as an affiliate, the Company has filed a shelf registration statement to register all of the shares of IES common stock owned by Tontine at the time of registration. As long as the shelf registration statement remains effective and the Company remains eligible to use it, Tontine has the ability to resell any or all of its registered shares from time to time in one or more offerings, as described in the shelf registration statement and in any prospectus supplement filed in connection with an offering pursuant to the shelf registration statement.

Should Tontine sell or otherwise dispose of all or a portion of its position in IES, a change in control of IES could occur. A change of control would trigger the change of control provisions in a number of our material agreements, including our credit agreement, bonding agreements with our sureties and our executive severance plan.

Jeffrey L. Gendell was appointed as Chief Executive Officer of the Company effective October 1, 2020, having served as the Company's Interim Chief Executive Officer since July 31, 2020. Mr. Gendell also serves as Chairman of the Board of Directors, a position he has held since November 2016. He is the managing member and founder of Tontine, and the brother of David B. Gendell, who has served as a member of our Board of Directors since February 2012, and who previously served as Interim Director of Operations from November 2017 to January 2019, as Vice Chairman of the Board from November 2016 to November 2017 and as Chairman of the Board from January 2015 to November 2016. David B. Gendell was an employee of Tontine from 2004 until January 2018.

The Company is party to a sublease agreement with Tontine Associates for corporate office space in Greenwich, Connecticut. In December 2022, the Company entered into an amendment of the sublease agreement, which was set to terminate on February 28, 2023, to extend the term of the agreement through August 31, 2024 and to increase the monthly payments from approximately $8 to approximately $9 effective March 1, 2023. Payments by the Company are at a rate consistent with that paid by Tontine Associates to its landlord.

On December 6, 2018, the Company entered into a Board Observer Letter Agreement (the "Observer Agreement") with Tontine Associates in order to assist Tontine in managing its investment in the Company. Subject to the terms and conditions set forth in the Observer Agreement, the Company granted Tontine the right, at any time that Tontine holds at least 20% of the outstanding common stock of the Company, to appoint a representative to serve as an observer to the Board (the “Board Observer”). The Board Observer, who must be reasonably acceptable to those members of the Board who are not affiliates of Tontine, shall have no voting rights or other decision making authority. Subject to the terms and conditions set forth in the Observer Agreement, so long as Tontine has the

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right to appoint a Board Observer, the Board Observer will have the right to attend and participate in meetings of the Board and the committees thereof, subject to confidentiality requirements, and to receive reimbursement for reasonable out-of-pocket expenses incurred in his or her capacity as a Board Observer and such rights to coverage under the Company’s directors’ and officers’ liability insurance policy as are available to the Company’s directors.

3. REVENUE RECOGNITION

Contracts

Our revenue is derived from contracts with customers, and we determine the appropriate accounting treatment for each contract at its inception. Our contracts primarily relate to electrical and mechanical contracting services, technology infrastructure products and services, and electro-mechanical solutions for industrial operations. Revenue is earned based upon an agreed fixed price or actual costs incurred plus an agreed upon percentage.

We account for a contract when: (i) it has approval and commitment from both parties, (ii) the rights of the parties are identified, (iii) payment terms are identified, (iv) the contract has commercial substance, and (v) collectability of consideration is probable. We consider the start of a project to be when the above criteria have been met and we have written authorization from the customer to proceed.

Performance Obligations

A performance obligation is a promise in a contract to transfer a distinct good or service to the customer. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied.

We recognize revenue over time for the majority of the services we perform, other than the Residential Single-family and Infrastructure Solutions Industrial Services businesses, as (i) control continuously transfers to the customer as work progresses at a project location controlled by the customer and (ii) we have the right to bill the customer as costs are incurred. Within our Infrastructure Solutions Custom Power Solutions business, we often perform work inside our own facilities, where control does not continuously transfer to the customer as work progresses. In such cases, we evaluate whether the work performed creates an asset with alternative use to the Company and whether we have the right to bill the customer as costs are incurred. Such assessment involves an evaluation of contractual termination clauses. Where we are creating an asset with no alternative use and we have a contractual right to payment for work performed to date, we recognize revenue over time. If we do not have such a right, we recognize revenue upon completion of the contract, when control of the work transfers to the customer.

For arrangements where we recognize revenue over time, we use the percentage of completion method of accounting under which revenue recognized is measured principally by the costs incurred and accrued to date for each contract as a percentage of the estimated total cost for each contract at completion. Contract costs include all direct material, labor and indirect costs related to contract performance. Changes in job performance, job conditions, estimated contract costs and profitability and final contract settlements may result in revisions to costs and income, and the effects of these revisions are recognized in the period in which the revisions are determined. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. This measurement and comparison process requires updates to the estimate of total costs to complete the contract, and these updates may include subjective assessments and judgments.

Certain divisions in the Residential and Infrastructure Solutions segments recognize revenue at the completion of the contract ("completed contract") under the right to invoice practical expedient because the duration of their contracts is short in nature. We recognize revenue on completed contracts when the project is complete and billable to the customer.

Variable Consideration

The transaction price for our contracts may include variable consideration, which includes changes to transaction price for approved and unapproved change orders, claims and incentives. Change orders, claims, and incentives are generally not distinct from the existing contract due to the significant integration service provided in the context of the contract and are accounted for as a modification of the existing contract and performance obligation. We estimate variable consideration for a performance obligation at the probability weighted value we expect to receive (or the most probable amount we expect to incur in the case of liquidated damages, if any), utilizing estimation methods that best predict the amount of consideration to which we will be entitled (or which will be incurred in the case of liquidated damages, if any). We include variable consideration in the estimated transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur or when the uncertainty associated with the variable consideration is resolved. Our estimates of variable consideration and determination of whether to include estimated amounts in transaction price are based largely on an assessment of our anticipated performance and all information (historical, current and forecasted) that is reasonably available to us. The effect of variable consideration on the transaction price of a performance obligation is recognized as an adjustment to revenue on a cumulative catch-up basis. To the extent unapproved change orders and

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claims reflected in transaction price (or accounted for as a reduction of the transaction price in the case of liquidated damages) are not resolved in our favor, or to the extent incentives reflected in transaction price are not earned, there could be reductions in, or reversals of, previously recognized revenue.

Disaggregation of Revenue

We disaggregate our revenue from contracts with customers by activity and contract type, as these categories reflect how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors. Our consolidated revenue for the three and six months ended March 31, 2024 and 2023 was derived from the following activities. Certain prior period amounts have been reclassified to conform with the current period presentation, where applicable. See details in the following tables:

	Three Months Ended March 31,				Six Months Ended March 31,
	2024		2023		2024		2023
Communications	$	193,503	$	141,120	$	364,251	$	288,365
Residential
Single-family	252,292		227,216		498,859		470,925
Multi-family and Other	87,080		78,896		156,369		153,265
Total Residential	339,372		306,112		655,228		624,190
Infrastructure Solutions
Industrial Services	12,076		11,562		23,174		22,516
Custom Power Solutions	63,713		41,054		115,503		79,384
Total Infrastructure Solutions	75,789		52,616		138,677		101,900
Commercial & Industrial	97,069		69,033		$	182,021	129,300
Total Revenue	$	705,733	$	568,881	$	1,340,177	$	1,143,755

	Three Months Ended March 31, 2024
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Fixed-price		$	141,144	$	339,372	$	73,543	$	82,972	$	637,031
Time-and-material			52,359		—		2,246		14,097		68,702
Total revenue		$	193,503	$	339,372	$	75,789	$	97,069	$	705,733
	Three Months Ended March 31, 2023
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Fixed-price		$	92,392	$	306,112	$	50,951	$	59,915	$	509,370
Time-and-material			48,728		—		1,665		9,118		59,511
Total revenue		$	141,120	$	306,112	$	52,616	$	69,033	$	568,881
	Six Months Ended March 31, 2024
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Fixed-price		$	266,367	$	655,228	$	134,423	$	156,882	$	1,212,900
Time-and-material			97,884		—		4,254		25,139		127,277
Total revenue		$	364,251	$	655,228	$	138,677	$	182,021	$	1,340,177
	Six Months Ended March 31, 2023
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Fixed-price		$	179,666	$	624,190	$	98,497	$	111,810	$	1,014,163
Time-and-material			108,699		—		3,403		17,490		129,592
Total revenue		$	288,365	$	624,190	$	101,900	$	129,300	$	1,143,755

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Accounts Receivable and Allowance for Credit Losses

Accounts receivable include amounts that we have billed or have an unconditional right to bill our customers. As of March 31, 2024, Accounts receivable included $7,385 of unbilled receivables for which we have an unconditional right to bill.

Contract Assets and Liabilities

Project contracts typically provide for a schedule of billings on percentage of completion of specific tasks inherent in the fulfillment of our performance obligation(s). The schedules for such billings usually do not precisely match the schedule on which costs are incurred. As a result, contract revenue recognized in the statement of operations can and usually does differ from amounts that can be billed to the customer at any point during the contract. Amounts by which cumulative contract revenue recognized on a contract as of a given date exceeds cumulative billings and unbilled receivables to the customer under the contract are reflected as a current asset in our Condensed Consolidated Balance Sheets under the caption “Costs and estimated earnings in excess of billings”. Amounts by which cumulative billings to the customer under a contract as of a given date exceed cumulative contract revenue recognized are reflected as a current liability in our Condensed Consolidated Balance Sheets under the caption “Billings in excess of costs and estimated earnings”.

During the six months ended March 31, 2024 and 2023, we recognized revenue of $92,970 and $52,350 related to our contract liabilities at October 1, 2023 and 2022, respectively.

Remaining Performance Obligations

Remaining performance obligations represent the unrecognized revenue value of our contract commitments. New awards represent the total expected revenue value of new contract commitments undertaken during a given period, as well as additions to the scope of existing contract commitments. Our new performance obligations vary significantly each reporting period based on the timing of our major new contract commitments. At March 31, 2024, we had remaining performance obligations of $1,065,444. The Company expects to recognize revenue on approximately $875,040 of the remaining performance obligations over the next 12 months, with the remainder recognized thereafter.

For the three and six months ended March 31, 2024, net revenue recognized from our performance obligations satisfied in previous periods was not material.

4. DEBT

We are a party to the Third Amended and Restated Credit and Security Agreement (the “Amended Credit Agreement”), which provides for a maximum borrowing amount of $150,000 under our revolving credit facility. The Amended Credit Agreement, which matures on September 30, 2026, contains customary affirmative, negative and financial covenants as disclosed in Item 7 of our Annual Report on Form 10-K for the fiscal year ended September 30, 2023. As of March 31, 2024, the Company was in compliance with the financial covenants under the Amended Credit Agreement.

At March 31, 2024 and September 30, 2023, we had no outstanding borrowings under our revolving credit facility. At March 31, 2024, we had $5,606 in outstanding letters of credit and total availability of $143,501 under our revolving credit facility without triggering the financial covenants under the Amended Credit Agreement.

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5. PER SHARE INFORMATION

The following tables reconcile the components of basic and diluted earnings per share for the three and six months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Numerator:
Net income attributable to IES Holdings, Inc.	$	52,909	$	21,551
Increase in noncontrolling interest		(5,941)		(2,771)
Net income attributable to common stockholders of IES Holdings, Inc.	$	46,968	$	18,780
Denominator:
Weighted average common shares outstanding — basic		20,227,342		20,170,824
Effect of dilutive stock options and non-vested securities		252,413		216,972
Weighted average common and common equivalent shares outstanding — diluted		20,479,755		20,387,796
Earnings per share attributable to common stockholders of IES Holdings, Inc.:
Basic	$	2.32	$	0.93
Diluted	$	2.29	$	0.92
	Six Months Ended March 31,
	2024		2023
Numerator:
Net income attributable to IES Holdings, Inc.	$	93,865	$	47,953
Increase in noncontrolling interest		(8,723)		(5,826)
Net income attributable to restricted stockholders of IES Holdings, Inc.		—		(10)
Net income attributable to common stockholders of IES Holdings, Inc.	$	85,142	$	42,117
Denominator:
Weighted average common shares outstanding — basic		20,213,421		20,206,814
Effect of dilutive stock options and non-vested securities		236,270		207,678
Weighted average common and common equivalent shares outstanding — diluted		20,449,691		20,414,492
Earnings per share attributable to IES Holdings, Inc.:
Basic	$	4.21	$	2.08
Diluted	$	4.16	$	2.06

For the three and six months ended March 31, 2024 and 2023, the average price of our common shares exceeded the exercise price of all of our outstanding stock options. As a result, all of our outstanding stock options were included in the computation of diluted earnings per share. For the six months ended March 31, 2024 and 2023, the computation of diluted earnings per share excluded 21,584 and 22,344 unvested Employee PSUs (as defined below), respectively, as the inclusion of such instruments would have been anti-dilutive. All unvested Employee PSUs were included in the computation of diluted earnings per share for the three months ended March 31, 2024 and 2023.

6. OPERATING SEGMENTS

We manage and measure performance of our business in four distinct operating segments: Communications, Residential, Infrastructure Solutions, and Commercial & Industrial. These segments are reflective of how the Company’s Chief Operating Decision Maker (“CODM”) reviews operating results for the purpose of allocating resources and assessing performance. The Company’s CODM is its Chief Executive Officer.

Transactions between segments, if any, are eliminated in consolidation. Our corporate organization provides general and administrative services, as well as support services, to each of our four operating segments. Management allocates certain shared costs among segments for selling, general and administrative expenses and depreciation expense.

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Segment information for the three and six months ended March 31, 2024 and 2023 is as follows:

		Three Months Ended March 31, 2024
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Corporate		Total
Revenues		$	193,503	$	339,372	$	75,789	$	97,069	$	—	$	705,733
Cost of services		154,568		250,702		52,044		76,806		—		534,120
Gross profit		38,935		88,670		23,745		20,263		—		171,613
Selling, general and administrative		16,988		55,258		7,627		8,707		6,692		95,272
Contingent consideration		—		—		—		—		—		—
Gain on sale of assets		(16)		(1,275)		—		(68)		(14)		(1,373)
Operating income (loss)		$	21,963	$	34,687	$	16,118	$	11,624	$	(6,678)	$	77,714
Other data:
	Depreciation and amortization expense	$	866	$	5,012	$	1,229	$	485	$	229	$	7,821
	Capital expenditures	$	936	$	3,424	$	884	$	1,397	$	203	$	6,844
	Total assets	$	230,386	$	396,760	$	200,476	$	98,845	$	174,697	$	1,101,164

		Three Months Ended March 31, 2023
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Corporate		Total
Revenues		$	141,120	$	306,112	$	52,616	$	69,033	$	—	$	568,881
Cost of services		115,957		251,281		38,421		62,296		—		467,955
Gross profit		25,163		54,831		14,195		6,737		—		100,926
Selling, general and administrative		13,386		37,999		5,990		6,400		5,574		69,349
Contingent consideration		—		69		—		—		—		69
Gain on sale of assets		(3)		—		—		(99)		—		(102)
Operating income (loss)		$	11,780	$	16,763	$	8,205	$	436	$	(5,574)	$	31,610
Other data:
	Depreciation and amortization expense	$	502	$	4,557	$	1,326	$	412	$	67	$	6,864
	Capital expenditures	$	480	$	2,379	$	560	$	546	$	—	$	3,965
	Total assets	$	188,937	$	389,946	$	173,621	$	87,721	$	48,863	$	889,088

		Six Months Ended March 31, 2024
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Corporate		Total
Revenues		$	364,251	$	655,228	$	138,677	$	182,021	$	—	$	1,340,177
Cost of services		289,041		491,127		96,741		147,851		—		1,024,760
Gross profit		75,210		164,101		41,936		34,170		—		315,417
Selling, general and administrative		31,889		106,636		14,912		15,554		12,131		181,122
Contingent consideration		—		35		—		—		—		35
Gain on sale of assets		(20)		(1,357)		—		(53)		(14)		(1,444)
Operating income (loss)		$	43,341	$	58,787	$	27,024	$	18,669	$	(12,117)	$	135,704
Other data:
	Depreciation and amortization expense	$	1,589	$	9,974	$	2,456	$	960	$	459	$	15,438
	Capital expenditures	$	1,936	$	6,788	$	2,035	$	2,218	$	382	$	13,359
	Total assets	$	230,386	$	396,760	$	200,476	$	98,845	$	174,697	$	1,101,164

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		Six Months Ended March 31, 2023
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Corporate		Total
Revenues		$	288,365	$	624,190	$	101,900	$	129,300	$	—	$	1,143,755
Cost of services		241,464		509,740		77,238		118,949		—		947,391
Gross profit		46,901		114,450		24,662		10,351		—		196,364
Selling, general and administrative		25,683		77,050		11,751		12,089		10,544		137,117
Contingent consideration		—		138		—		—		—		138
Gain on sale of assets		(3)		(6)		(19)		(13,134)		—		(13,162)
Operating income (loss)		$	21,221	$	37,268	$	12,930	$	11,396	$	(10,544)	$	72,271
Other data:
	Depreciation and amortization expense	$	932	$	8,701	$	2,680	$	804	$	135	$	13,252
	Capital expenditures	$	1,122	$	3,087	$	1,199	$	1,269	$	—	$	6,677
	Total assets	$	188,937	$	389,946	$	173,621	$	87,721	$	48,863	$	889,088

7. STOCKHOLDERS’ EQUITY

Equity Incentive Plan

The Company’s 2006 Equity Incentive Plan, as amended and restated (the “Equity Incentive Plan”), provides for grants of stock options as well as grants of stock, including restricted stock. Approximately 3.0 million shares of common stock are authorized for issuance under the Equity Incentive Plan, of which approximately 570,655 shares were available for issuance at March 31, 2024.

Stock Repurchase Program

In December 2022, our Board authorized a stock repurchase program for the purchase from time to time of up to $40,000 of the Company’s common stock, replacing the Company's previous repurchase program. Share purchases are made for cash in open market transactions at prevailing market prices or in privately negotiated transactions or otherwise. The timing and amount of purchases under the program are determined based upon prevailing market conditions, our liquidity requirements, contractual restrictions and other factors. All or part of the repurchases may be implemented under a Rule 10b5-1 trading plan, which allows repurchases under predetermined terms at times when the Company might otherwise be prevented from purchasing under insider trading laws or because of self-imposed blackout periods. The program does not require the Company to purchase any specific number of shares and may be modified, suspended, reinstated, or terminated at any time at the Company’s discretion and without notice. We repurchased 4,048 and 223,779 shares, respectively, of our common stock during the three and six months ended March 31, 2023 in open market transactions at an average price of $34.97 and $31.05 per share, respectively. We made no repurchases of common stock in open market transactions during the three and six months ended March 31, 2024.

Treasury Stock

During the six months ended March 31, 2024, we issued 82,180 shares of common stock from treasury stock to employees and repurchased 33,940 shares of common stock from our employees to satisfy statutory tax withholding requirements upon the vesting of certain performance phantom stock units under the Equity Incentive Plan. During the six months ended March 31, 2024, we issued 1,000 unrestricted shares to satisfy the exercise of certain outstanding option awards under the Equity Incentive Plan.

During the six months ended March 31, 2023, we issued 71,013 shares of common stock from treasury stock to employees and repurchased 19,347 shares of common stock from our employees to satisfy statutory tax withholding requirements upon the vesting of certain performance phantom stock units under the Equity Incentive Plan. In addition, 266 restricted shares were forfeited and returned to treasury stock. During the six months ended March 31, 2023, we issued 2,000 unrestricted shares to satisfy the exercise of certain outstanding option awards under the Equity Incentive Plan.

Director Phantom Stock Units

Director phantom stock units (“Director PSUs”) are granted to the members of the Board of Directors as part of their overall compensation. The Director PSUs are contractual rights to receive one share of the Company's common stock and are paid via unrestricted stock grants to each director upon their departure from the Board of Directors, or upon a change in control. We record compensation expense for the full value of the grant on the date of grant.

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Employee Phantom Stock Units

An employee phantom stock unit (an “Employee PSU”) is a contractual right to receive one share of the Company’s common stock. Depending on the terms of each grant, Employee PSUs may vest upon the achievement of certain specified performance objectives and continued performance of services, or may vest based on continued performance of services through the vesting date.

As of March 31, 2024, the Company had outstanding Employee PSUs, which, subject to the achievement of certain performance metrics, could result in the issuance of 323,973 shares of common stock. During the six months ended March 31, 2024, we granted 85,434 Employee PSUs, 5,094 were forfeited, and 82,180 vested.

A summary of the compensation expense related to our stock awards recognized during the three and six months ended March 31, 2024 and 2023 is provided in the table below:

	Three Months Ended March 31,				Six Months Ended March 31,
	2024		2023		2024		2023
Restricted stock awards	$	—	$	—	$	—	$	25
Director PSUs	$	134	$	94	$	230	$	190
Employee PSUs	$	1,380	$	958	$	2,695	$	1,740

8. FAIR VALUE MEASUREMENTS

Fair Value Measurement Accounting

Fair value is considered the price to sell an asset, or transfer a liability, between market participants on the measurement date. Fair value measurements assume that (1) the asset or liability is exchanged in an orderly manner, (2) the exchange is in the principal market for that asset or liability, and (3) the market participants are independent, knowledgeable, and able and willing to transact an exchange. Fair value accounting and reporting establishes a framework for measuring fair value by creating a hierarchy for observable independent market inputs and unobservable market assumptions and expands disclosures about fair value measurements. Judgment is required to interpret the market data used to develop fair value estimates. As such, the estimates presented herein are not necessarily indicative of the amounts that could be realized in a current exchange. The use of different market assumptions and/or estimation methods could have a material effect on the estimated fair value.

At March 31, 2024 and September 30, 2023, financial assets and liabilities measured at fair value on a recurring basis were limited to investments in equity securities and debt securities classified as trading securities, our Executive Deferred Compensation Plan, under which certain employees are permitted to defer a portion of their base salary and/or bonus for a Plan Year (as defined in the plan), and contingent consideration liabilities related to certain of our acquisitions.

Financial assets (liabilities) measured at fair value on a recurring basis as of March 31, 2024 and September 30, 2023, are summarized in the following tables by the type of inputs applicable to the fair value measurements:

	March 31, 2024
			Total Fair Value		Quoted Prices (Level 1)		Significant Unobservable Inputs (Level 3)
Equity securities		$	13,048	$	13,048	$	—
Debt securities classified as trading securities			4,444		4,444		—
Executive savings plan assets			925		925		—
Executive savings plan liabilities			(793)		(793)		—
Total		$	17,624	$	17,624	$	—

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	September 30, 2023
			Total Fair Value		Quoted Prices (Level 1)		Significant Unobservable Inputs (Level 3)
Executive savings plan assets		$	783	$	783	$	—
Executive savings plan liabilities			(657)		(657)		—
Contingent consideration liability			(4,465)		—		(4,465)
Total		$	(4,339)	$	126	$	(4,465)

Investments in equity securities and debt securities, all of which are classified as trading securities and mature after one year and before five years at March 31, 2024, were included in “Prepaid expenses and other current assets” in our Condensed Consolidated Balance Sheets. Gains and losses to measure our investments in equity and debt securities at fair value were included in Other income, net in our Condensed Consolidated Statements of Comprehensive Income. Our unrealized net gains (losses), which are calculated as total net gains (losses) recognized during the period less net gains (losses) recognized on securities sold during the period, were as follows:

	Three Months Ended March 31,				Six Months Ended March 31,
	2024		2023		2024		2023
Unrealized loss on equity securities	$	(1,852)	$	—	$	(1,852)	$	—
Unrealized gain (loss) on debt securities	(57)		—		62		—
Total unrealized loss on trading securities	$	(1,909)	$	—	$	(1,790)	$	—

In fiscal year 2021, we entered into a contingent consideration arrangement related to the acquisition of Bayonet. The table below presents the change in fair value of this obligation, which used significant unobservable inputs (Level 3). This obligation was settled during the six months ended March 31, 2024, and we did not have any other assets or liabilities measured using significant unobservable inputs at March 31, 2024.

	Contingent Consideration Agreements
Fair value at September 30, 2023	$	(4,465)
Net adjustments to fair value	(35)
Settlements	4,500
Fair value at March 31, 2024	$	—

9. INVENTORY

Inventories consist of the following components:

	March 31,		September 30,
	2024		2023
Raw materials	$	14,635	$	14,334
Work in process		10,296		12,939
Finished goods		4,933		3,399
Parts and supplies		74,748		64,983
Total inventories	$	104,612	$	95,655

10. GOODWILL AND INTANGIBLE ASSETS

Goodwill

The following summarizes the carrying value of goodwill by segment at March 31, 2024, which did not change from September 30, 2023:

	Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Goodwill at March 31, 2024	$	2,816	$	51,370	$	38,209	$	—	$	92,395

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Intangible Assets

Intangible assets consist of the following:

	Estimated Useful Lives (in Years)			March 31, 2024
					Gross Carrying Amount		Accumulated Amortization		Net
Trademarks/trade names	5	-	20		$	13,071	$	(6,174)		$	6,897
Technical library	20				400		(211)			189
Customer relationships	6	-	15		91,426		(48,437)			42,989
Non-competition arrangements	5				40		(40)			—
Backlog and construction contracts	1				3,268		(3,268)			—
Total intangible assets					$	108,205	$	(58,130)		$	50,075

	Estimated Useful Lives (in Years)			September 30, 2023
					Gross Carrying Amount		Accumulated Amortization		Net
Trademarks/trade names	5	-	20		$	14,621	$	(6,973)		$	7,648
Technical library	20				400		(201)			199
Customer relationships	6	-	15		91,426		(43,065)			48,361
Non-competition arrangements	5				40		(40)			—
Backlog and construction contracts	1				4,958		(4,958)			—
Total intangible assets					$	111,445	$	(55,237)		$	56,208

11. COMMITMENTS AND CONTINGENCIES

Legal Matters

From time to time, we are a party to various claims, lawsuits and other legal proceedings that arise in the ordinary course of business. We maintain various insurance coverages to minimize financial risk associated with these proceedings. None of these proceedings, separately or in the aggregate, are expected to have a material adverse effect on our financial position, results of operations or cash flows. With respect to all such proceedings, we record reserves when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. We expense routine legal costs related to these proceedings as they are incurred.

In the course of performing work as a subcontractor, from time to time we may be involved in projects which are the subject of contractual disputes between the general contractor and project owner, or between us and the general contractor. In such cases, payment of amounts owed to us by the general contractor may be delayed as contractual disputes are resolved through mediation, arbitration, or litigation. Such disputes may cause us to incur legal fees and other expenses to enforce our contractual rights, and we may not prevail in recovering all amounts to which we believe we are contractually entitled.

Risk Management

We retain the risk for workers’ compensation, employer’s liability, automobile liability, construction defects, general liability and employee group health claims, as well as pollution coverage, resulting from uninsured deductibles per accident or occurrence which are generally subject to annual aggregate limits. Our general liability program provides coverage for bodily injury and property damage. In many cases, we insure third parties, including general contractors, as additional insured parties under our insurance policies. Losses are accrued based upon our known claims incurred and an estimate of claims incurred but not reported. As a result, many of our claims are effectively self-insured. Many claims against our insurance are in the form of litigation. At March 31, 2024 and September 30, 2023, we had $10,143 and $7,726, respectively, accrued for self-insurance liabilities. Because the reserves are based on judgment and estimates and involve variables that are inherently uncertain, such as the outcome of litigation and an assessment of insurance coverage, there can be no assurance that the ultimate liability will not be higher or lower than such estimates or that the timing of payments will not create liquidity issues for the Company.

Some of the underwriters of our casualty insurance program require us to post letters of credit as collateral. This is common in the insurance industry. To date, we have not had a situation where an underwriter has had reasonable cause to effect payment under a letter of credit. At March 31, 2024 and September 30, 2023, $5,606 and $4,166, respectively, of our outstanding letters of credit was utilized to collateralize our insurance program.

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Surety

As of March 31, 2024, the estimated cost to complete our bonded projects was approximately $138,588. We evaluate our bonding requirements on a regular basis, including the terms offered by our sureties. We believe the bonding capacity presently provided by our current sureties is adequate for our current operations and will be adequate for our operations for the foreseeable future.

Other Commitments and Contingencies

Some of our customers and vendors require us to post letters of credit, or provide intercompany guarantees, as a means of guaranteeing performance under our contracts and ensuring payment by us to subcontractors and vendors. If our customer has reasonable cause to effect payment under a letter of credit, we would be required to reimburse our creditor for the letter of credit.

From time to time, we may enter into firm purchase commitments for materials, such as copper or aluminum wire, which we expect to use in the ordinary course of business. These commitments are typically for terms of less than one year and require us to buy minimum quantities of materials at specific intervals at a fixed price over the term. As of March 31, 2024, we did not have any such firm commitments to purchase materials outstanding.

12. LEASES

We enter into various contractual arrangements for the right to use facilities, vehicles and equipment. The lease terms generally range from two to ten years for facilities and three to five years for vehicles and equipment. Our lease terms may include the exercise of renewal or termination options when it is reasonably certain these options will be exercised. Our lease agreements do not contain any material residual value guarantees or restrictive covenants.

Current operating and finance lease liabilities of $19,619 and $4,657, respectively, as of March 31, 2024, and $19,496 and $4,301, respectively, as of September 30, 2023, were included in “Accounts payable and accrued expenses” in the Condensed Consolidated Balance Sheets. Non-current finance lease liabilities and finance lease right-of-use assets were included in the “Other non-current liabilities” and “Other non-current assets”, respectively, in the Condensed Consolidated Balance Sheets.

The maturities of our lease liabilities as of March 31, 2024 are as follows:

	Operating Leases		Finance Leases		Total
Remainder of 2024	$	10,701	$	2,438	$	13,139
2025	18,274		4,653		22,927
2026	14,566		3,786		18,352
2027	10,050		1,984		12,034
2028	5,659		241		5,900
Thereafter	5,473		8		5,481
Total undiscounted lease payments	$	64,723	$	13,110	$	77,833
Less: imputed interest	6,929		1,212		8,141
Present value of lease liabilities	$	57,794	$	11,898	$	69,692

The total future undiscounted cash flows related to lease agreements committed to but not yet commenced as of March 31, 2024 is $3,598.

Lease cost recognized in our Condensed Consolidated Statements of Comprehensive Income is summarized as follows:

	Three Months Ended						Six Months Ended
	March 31, 2024		March 31, 2023				March 31, 2024		March 31, 2023
Operating lease cost	$	5,718	$	4,407	$	0	$	11,414	$	9,333
Finance lease cost
Amortization of lease assets	1,126		1,011				2,134		1,686
Interest on lease liabilities	215		216				399		366
Finance lease cost	1,341		1,227				2,533		2,052
Short-term lease cost	389		513				810		1,102
Variable lease cost	$	1,083	$	661			$	2,081	$	1,074
Total lease cost	$	8,531	$	6,808			$	16,838	$	13,561

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Other information about lease amounts recognized in our Condensed Consolidated Financial Statements is summarized as follows:

	Three Months Ended				Six Months Ended
	March 31, 2024		March 31, 2023		March 31, 2024		March 31, 2023
Operating cash flows used for operating leases	$	6,026	$	5,867	$	12,064	$	11,818
Operating cash flows used for finance leases	215		216		399		366
Right-of-use assets obtained in exchange for new operating lease liabilities	1,116		2,872		7,575		9,191
Right-of-use assets obtained in exchange for new finance lease liabilities	644		1,882		984		4,826

	March 31, 2024		September 30, 2023
Weighted-average remaining lease term - operating leases	4.1 years		4.5 years
Weighted-average remaining lease term - finance leases	3.0 years		3.4 years
Weighted-average discount rate - operating leases	5.3	%	5.1	%
Weighted-average discount rate - finance leases	6.3	%	6.0	%

13. BUSINESS COMBINATIONS AND DIVESTITURES

We completed no acquisitions during the six months ended March 31, 2024 or during the year ended September 30, 2023.

On October 7, 2022, we sold 100% of the membership interests of STR Mechanical, LLC and its subsidiary Technical Services II, LLC (collectively, “STR”). As a result, we recognized a pre-tax gain of $13,045, which was included in “Gain on sale of assets” within our Condensed Consolidated Statements of Comprehensive Income for the six months ended March 31, 2023.

14. SUBSEQUENT EVENTS

Acquisition of Greiner Industries

On April 1, 2024, the Company acquired all of the equity interests of Greiner Industries, Inc., a Mount Joy, Pennsylvania-based structural steel fabrication and services company, to support the growth of our Infrastructure Solutions segment for a cash purchase price of $69,804, subject to post-closing adjustments to be determined based on the valuation of certain assets and liabilities, plus a maximum of $5,000 contingent consideration, payable upon achievement of certain future earnings targets. This acquired business will operate as a subsidiary in our Infrastructure Solutions segment. The fair value of the total consideration for this transaction remains subject to post-closing adjustments as of the date of this report.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion and analysis should be read in conjunction with our Consolidated Financial Statements and the notes thereto, set forth in Part II, Item 8. “Financial Statements and Supplementary Data” as set forth in our Annual Report on Form 10-K for the fiscal year ended September 30, 2023, and the Condensed Consolidated Financial Statements and notes thereto included in Part I, Item 1 of this Quarterly Report on Form 10-Q. The following discussion may contain forward looking statements. For additional information, see “Disclosure Regarding Forward Looking Statements” in Part I of this Quarterly Report on Form 10-Q.

OVERVIEW

Executive Overview

Please refer to Part I, Item 1. “Business” of our Annual Report on Form 10-K for the fiscal year ended September 30, 2023, for a discussion of the Company’s services and corporate strategy. IES Holdings, Inc., a Delaware corporation, designs and installs integrated electrical and technology systems and provides infrastructure products and services to a variety of end markets, including data centers, residential housing, and commercial and industrial facilities. Our operations are organized into four business segments: Communications, Residential, Infrastructure Solutions and Commercial & Industrial.

Current Market and Operating Conditions

Increases in the target federal funds rate throughout calendar years 2022 and 2023 have resulted in higher mortgage rates, which when combined with elevated materials and labor costs, have had a substantial impact on the affordability of housing. While decreased housing affordability has led to uncertainty around near-term demand for our services in the single-family housing market and we continue to monitor market conditions for signs of slowing activity, demand in the primary markets we serve has remained firm. In addition, there continue to be several trends, such as rising household formation and population growth in our key markets, that we expect will drive long-term demand for our services. Within the various other end markets we serve, our customers' capital budgets for new construction projects may be impacted by broader economic, technological or other factors.

While the COVID-19 pandemic's impact on markets, the supply chain and the labor force had less of an impact on our business thus far in fiscal 2024 compared with prior fiscal years, COVID-19 and any future pandemic or other public health emergency could impact our workforce, customers and suppliers in the future. An inability to procure materials in a timely manner, to complete work on schedule, and to reflect higher materials or labor costs in our pricing to customers has had, and could have in the future, a significant impact on our operating results.

Please refer to Part I. Item 1A. “Risk Factors” of our Annual Report on Form 10-K for the fiscal year ended September 30, 2023 for further information.

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RESULTS OF OPERATIONS

We report our operating results across our four operating segments: Communications, Residential, Infrastructure Solutions, and Commercial & Industrial. Expenses associated with our corporate office are classified separately. The following table presents selected historical results of operations of IES Holdings, Inc., including the results of acquired businesses from the dates acquired.

		Three Months Ended March 31,
		2024				2023
		$		%		$		%
		(Dollars in thousands, Percentage of revenues)
Revenues		$	705,733	100.0	%	$	568,881	100.0	%
	Cost of services	534,120		75.7		467,955		82.3
Gross profit		171,613		24.3		100,926		17.7
	Selling, general and administrative expenses	95,272		13.5		69,349		12.2
	Contingent consideration	—		—		69		—
	Gain on sale of assets	(1,373)		(0.2)		(102)		—
Operating income		77,714		11.0		31,610		5.6
	Interest and other (income) expense, net	1,542		0.2		(719)		(0.1)
Income from operations before income taxes		76,172		10.8		32,329		5.7
	Provision for income taxes	19,372		2.7		8,157		1.4
Net income		56,800		8.0		24,172		4.2
	Net income attributable to noncontrolling interest	(3,891)		(0.6)		(2,621)		(0.5)
Net income attributable to IES Holdings, Inc.		$	52,909	7.5	%	$	21,551	3.8	%

Consolidated revenues for the three months ended March 31, 2024, were $136.9 million higher than for the three months ended March 31, 2023, an increase of 24.1%, with increases at all four of our operating segments. See further discussion below of changes in revenues for our individual segments.

Consolidated gross profit for the three months ended March 31, 2024 increased $70.7 million compared to the three months ended March 31, 2023. Our overall gross profit percentage was 24.3% during the three months ended March 31, 2024, as compared to 17.7% during the three months ended March 31, 2023. Gross profit as a percentage of revenue increased at all four of our operating segments. See further discussion below of changes in gross margin for our individual segments.

Selling, general and administrative expenses include costs not directly associated with performing work for our customers. These costs consist primarily of compensation and benefits related to corporate, segment and branch management (including incentive-based compensation), occupancy and utilities, training, professional services, information technology costs, consulting fees, travel and certain types of depreciation and amortization. We allocate certain corporate selling, general and administrative costs across our segments as we believe this more accurately reflects the costs associated with operating each segment.

During the three months ended March 31, 2024, our selling, general and administrative expenses were $95.3 million, an increase of $25.9 million, or 37.4%, over the three months ended March 31, 2023, primarily driven by increased personnel costs at our Residential operating segment in connection with a reorganization of the segment's management structure in fiscal 2023 and higher incentive compensation at the division level as a result of higher earnings. Increases in selling, general and administrative expenses at our other operating segments were generally consistent with each segment's respective revenue growth. Selling, general and administrative expenses as a percentage of revenue increased from 12.2% for the three months ended March 31, 2023 to 13.5% for the three months ended March 31, 2024.

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		Six Months Ended March 31,
		2024				2023
		$		%		$		%
		(Dollars in thousands, Percentage of revenues)
	Revenues	$	1,340,177	100.0	%	$	1,143,755	100.0	%
	Cost of services	1,024,760		76.5		947,391		82.8
Gross profit		315,417		23.5		196,364		17.2
	Selling, general and administrative expenses	181,122		13.5		137,117		12.0
	Contingent consideration	35		—		138		—
	Gain on sale of assets	(1,444)		(0.1)		(13,162)		(1.2)
Operating income		135,704		10.1		72,271		6.3
	Interest and other expense, net	546		—		1,160		0.1
Income from operations before income taxes		135,158		10.1		71,111		6.2
	Provision for income taxes	34,770		2.6		18,185		1.6
Net income		100,388		7.5		52,926		4.6
	Net income attributable to noncontrolling interest	(6,523)		(0.5)		(4,973)		(0.4)
Net income attributable to IES Holdings, Inc.		$	93,865	7.0	%	$	47,953	4.2	%

Consolidated revenues for the six months ended March 31, 2024, were $196.4 million higher than for the six months ended March 31, 2023, an increase of 17.2%, with increases at all four of our operating segments. See further discussion below of changes in revenues for our individual segments.

Our overall gross profit percentage increased to 23.5% during the six months ended March 31, 2024, as compared to 17.2% during the six months ended March 31, 2023. Gross profit as a percentage of revenue increased at all four of our operating segments. See further discussion below of changes in gross margin for our individual segments.

During the six months ended March 31, 2024, our selling, general and administrative expenses were $181.1 million, an increase of $44.0 million, or 32.1%, over the six months ended March 31, 2023, primarily driven by increased personnel costs at our Residential operating segment in connection with a reorganization of the segment's management structure in fiscal 2023 and higher incentive compensation at the division level as a result of higher earnings. Increases in selling, general and administrative expenses at our other operating segments were generally consistent with each segment's respective revenue growth. Selling, general and administrative expenses as a percentage of revenue increased from 12.0% for the six months ended March 31, 2023 to 13.5% for the six months ended March 31, 2024.

Gain on Sale of Assets. Our results for the six months ended March 31, 2023 included a pretax gain on sale of $13.0 million from the sale of STR Mechanical, LLC (“STR”) on October 7, 2022. STR previously operated as part of our Commercial & Industrial segment.

Communications

	Three Months Ended March 31,
	2024				2023
	$		%		$		%
	(Dollars in thousands, Percentage of revenues)
Revenues	$	193,503	100.0	%	$	141,120	100.0	%
Cost of services		154,568	79.9			115,957	82.2
Gross profit		38,935	20.1			25,163	17.8
Selling, general and administrative expenses		16,988	8.8			13,386	9.5
Gain on sale of assets		(16)	—			(3)	—
Operating income	$	21,963	11.4	%	$	11,780	8.3	%

Revenues. Our Communications segment’s revenues increased by $52.4 million during the three months ended March 31, 2024, or 37.1%, compared to the three months ended March 31, 2023. The increase primarily resulted from an increase in demand from data center customers.

Gross Profit. Our Communications segment’s gross profit during the three months ended March 31, 2024 increased by $13.8 million compared to the three months ended March 31, 2023. Gross profit as a percentage of revenue increased from 17.8% to 20.1%. The

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increase in profitability in the three months ended March 31, 2024 was primarily the result of increased volume, improved project execution and pricing, and the impact of a more disciplined bidding process.

Selling, General and Administrative Expenses. Our Communications segment’s selling, general and administrative expenses increased by $3.6 million, or 26.9%, during the three months ended March 31, 2024, compared to the three months ended March 31, 2023. The increase primarily reflects higher personnel cost including higher incentive compensation as a result of higher earnings, investment in an organizational structure that will enhance the scalability of our business, and higher wages in an increasingly competitive labor market. Selling, general and administrative expenses as a percentage of revenue in the Communications segment decreased from 9.5% for the three months ended March 31, 2023 to 8.8% during the three months ended March 31, 2024 as we benefited from the scale of our operations.

	Six Months Ended March 31,
	2024				2023
	$		%		$		%
	(Dollars in thousands, Percentage of revenues)
Revenues	$	364,251	100.0	%	$	288,365	100.0	%
Cost of services		289,041	79.4			241,464	83.7
Gross profit		75,210	20.6			46,901	16.3
Selling, general and administrative expenses		31,889	8.8			25,683	8.9
Gain on sale of assets		(20)	—			(3)	—
Operating income	$	43,341	11.9	%	$	21,221	7.4	%

Revenues. Our Communications segment's revenues increased by $75.9 million, or 26.3%, during the six months ended March 31, 2024, compared to the six months ended March 31, 2023. The increase primarily resulted from an increase in demand from data center, high-tech manufacturing and e-commerce distribution center customers.

Gross Profit. Our Communications segment’s gross profit during the six months ended March 31, 2024 increased by $28.3 million, or 60.4%, as compared to the six months ended March 31, 2023. Gross profit as a percentage of revenue increased from 16.3% to 20.6%. The increase in gross profit and gross profit as a percentage of revenue primarily reflects increased volume, improved project execution and pricing, and the impact of a more disciplined bidding process.

Selling, General and Administrative Expenses. Our Communications segment’s selling, general and administrative expenses increased by $6.2 million, or 24.2%, during the six months ended March 31, 2024, compared to the six months ended March 31, 2023. The increase primarily reflects higher personnel cost including higher incentive compensation as a result of higher earnings, investment in an organizational structure that will enhance the scalability of our business, and higher wages in an increasingly competitive labor market. Selling, general and administrative expenses as a percentage of revenues in the Communications segment was 8.8% during the six months ended March 31, 2024 compared to 8.9% during the six months ended March 31, 2023.

Residential

	Three Months Ended March 31,
	2024				2023
	$		%		$		%
	(Dollars in thousands, Percentage of revenues)
Revenues	$	339,372	100.0	%	$	306,112	100.0	%
Cost of services	250,702		73.9		251,281		82.1
Gross profit	88,670		26.1		54,831		17.9
Selling, general and administrative expenses	55,258		16.3		37,999		12.4
Contingent consideration	—		—		69		—
Gain on sale of assets	(1,275)		(0.4)		—		—
Operating income	$	34,687	10.2	%	$	16,763	5.5	%

Revenues. Our Residential segment’s revenues increased by $33.3 million, or 10.9%, during the three months ended March 31, 2024 compared to the three months ended March 31, 2023. The increase was primarily driven by an expansion of our plumbing and HVAC offerings and continued strong demand in our single-family business, where revenues increased by $25.1 million. In addition, in our multi-family business, successful execution of its backlog contributed to an $8.2 million increase in revenues.

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Gross Profit. During the three months ended March 31, 2024, our Residential segment's gross profit increased by $33.8 million, or 61.7%, compared to the three months ended March 31, 2023. Gross profit as a percentage of revenue increased to 26.1% during the three months ended March 31, 2024, compared to 17.9% for the three months ended March 31, 2023. The increase in profitability was driven primarily by improved project execution in our multi-family business, as well as the benefit of improved procurement and other processes implemented as part of the reorganization of the segment in fiscal 2023.

Selling, General and Administrative Expenses. Our Residential segment's selling, general and administrative expenses increased by $17.3 million, or 45.4%, during the three months ended March 31, 2024, compared to the three months ended March 31, 2023. The increase was driven by higher personnel costs in connection with a reorganization of the segment's management structure in fiscal 2023 and incentive profit sharing for division management resulting from higher earnings. Selling, general and administrative expenses as a percentage of revenue in the Residential segment increased to 16.3% during the three months ended March 31, 2024, compared to 12.4% in the three months ended March 31, 2023.

	Six Months Ended March 31,
	2024				2023
	$		%		$		%
	(Dollars in thousands, Percentage of revenues)
Revenues	$	655,228	100.0	%	$	624,190	100.0	%
Cost of services	491,127		75.0		509,740		81.7
Gross profit	164,101		25.0		114,450		18.3
Selling, general and administrative expenses	106,636		16.3		77,050		12.3
Contingent consideration	35		—		138		—
Gain on sale of assets	(1,357)		(0.2)		(6)		—
Operating income	$	58,787	9.0	%	$	37,268	6.0	%

Revenues. Our Residential segment's revenues increased by $31.0 million, or 5.0%, during the six months ended March 31, 2024, compared to the six months ended March 31, 2023. The increase was primarily driven by an expansion of our plumbing and HVAC offerings and continued strong demand in our single-family business, where revenues increased by $27.9 million compared to the prior year period. Multi-family and other revenue also increased by $3.1 million for the six months ended March 31, 2024 compared to the prior year period as continued strong demand and successful execution of existing backlog were partially offset by a more selective bidding process and a reduction in activity in certain areas where we experienced project execution challenges in the prior year.

Gross Profit. During the six months ended March 31, 2024, our Residential segment's gross profit increased by $49.7 million, or 43.4%, compared to the six months ended March 31, 2023. Gross margin as a percentage of revenue increased to 25.0% during the six months ended March 31, 2024, compared to 18.3% during the six months ended March 31, 2023. The increase in profitability was driven primarily by improved project execution in our multi-family business, as well as the benefit of improved procurement and other processes implemented as part of the reorganization of the segment in fiscal 2023.

Selling, General and Administrative Expenses. Our Residential segment's selling, general and administrative expenses increased by $29.6 million, or 38.4%, during the six months ended March 31, 2024, compared to the six months ended March 31, 2023. The increase was driven by higher personnel costs in connection with a reorganization of the segment's management structure in fiscal 2023 and incentive profit sharing for division management resulting from higher earnings. Selling, general and administrative expenses as a percentage of revenue in the Residential segment increased to 16.3% during the six months ended March 31, 2024, compared to 12.3% during the six months ended March 31, 2023.

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Infrastructure Solutions

	Three Months Ended March 31,
	2024				2023
	$		%		$		%
	(Dollars in thousands, Percentage of revenues)
Revenues	$	75,789	100.0	%	$	52,616	100.0	%
Cost of services		52,044	68.7			38,421	73.0
Gross profit		23,745	31.3			14,195	27.0
Selling, general and administrative expenses		7,627	10.1			5,990	11.4
Operating income	$	16,118	21.3	%	$	8,205	15.6	%

Revenues. Revenues in our Infrastructure Solutions segment increased by $23.2 million during the three months ended March 31, 2024, an increase of 44.0% compared to the three months ended March 31, 2023, driven primarily by continued strong demand in our custom power solutions manufacturing businesses, including generator enclosures.

Gross Profit. Our Infrastructure Solutions segment’s gross profit during the three months ended March 31, 2024 increased $9.6 million, compared to the three months ended March 31, 2023, primarily resulting from higher volumes, improved pricing and operating efficiencies at our facilities as well as the impact of investments to increase capacity we have made over the last several years. Gross profit as a percentage of revenue increased from 27.0% to 31.3%.

Selling, General and Administrative Expenses. Our Infrastructure Solutions segment’s selling, general and administrative expenses during the three months ended March 31, 2024 increased by $1.6 million, compared to the three months ended March 31, 2023, primarily as a result of increased employee compensation cost to support growth in the business. Selling, general and administrative expenses as a percentage of revenue decreased from 11.4% for the three months ended March 31, 2023 to 10.1% for the three months ended March 31, 2024 as we benefited from the scale of our operations.

	Six Months Ended March 31,
	2024				2023
	$		%		$		%
	(Dollars in thousands, Percentage of revenues)
Revenues	$	138,677	100.0	%	$	101,900	100.0	%
Cost of services		96,741	69.8			77,238	75.8
Gross profit		41,936	30.2			24,662	24.2
Selling, general and administrative expenses		14,912	10.8			11,751	11.5
Gain on sale of assets		—	—			(19)	—
Operating income	$	27,024	19.5	%	$	12,930	12.7	%

Revenues. Revenues in our Infrastructure Solutions segment increased by $36.8 million, or 36.1%, during the six months ended March 31, 2024 compared to the six months ended March 31, 2023. The increase in revenue was driven primarily by continued strong demand in our custom power solutions manufacturing businesses, including generator enclosures.

Gross Profit. Our Infrastructure Solutions segment’s gross profit during the six months ended March 31, 2024 increased by $17.3 million, compared to the six months ended March 31, 2023, primarily resulting from higher volumes, improved pricing and operating efficiencies at our facilities as well as the impact of investments to increase capacity we have made over the last several years. Gross profit as a percentage of revenues increased to 30.2% for the six months ended March 31, 2024 compared to 24.2% for the six months ended March 31, 2023.

Selling, General and Administrative Expenses. Our Infrastructure Solutions segment’s selling, general and administrative expenses during the six months ended March 31, 2024 increased by $3.2 million, compared to the six months ended March 31, 2023, primarily as a result of increased employee compensation cost to support growth in the business. Selling, general and administrative expenses as a percentage of revenue decreased from 11.5% for the six months ended March 31, 2023 to 10.8% for the six months ended March 31, 2024 as we benefited from the scale of our operations.

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Commercial & Industrial

	Three Months Ended March 31,
	2024				2023
	$		%		$		%
	(Dollars in thousands, Percentage of revenues)
Revenues	$	97,069	100.0	%	$	69,033	100.0	%
Cost of services		76,806	79.1			62,296	90.2
Gross profit		20,263	20.9			6,737	9.8
Selling, general and administrative expenses		8,707	9.0			6,400	9.3
Gain on sale of assets		(68)	(0.1)			(99)	(0.1)
Operating income	$	11,624	12.0	%	$	436	0.6	%

Revenues. Revenues in our Commercial & Industrial segment increased by $28.0 million, or 40.6%, during the three months ended March 31, 2024, compared to the three months ended March 31, 2023. The increase primarily relates to a large data center project.

Gross Profit. Our Commercial & Industrial segment’s gross profit during the three months ended March 31, 2024, increased by $13.5 million, compared to the three months ended March 31, 2023. Gross profit as a percentage of revenue increased from 9.8% for the quarter ended March 31, 2023 to 20.9% for the quarter ended March 31, 2024. In the three months ended March 31, 2024, segment results benefited from favorable project execution on the large data center project, improving bid margins in certain markets, and a more selective bidding strategy implemented in the prior year. Our results for the quarter ended March 31, 2023 were impacted by continuing operating challenges at one branch that incurred significant losses during fiscal 2022 and into fiscal 2023.

Selling, General and Administrative Expenses. Our Commercial & Industrial segment’s selling, general and administrative expenses during the three months ended March 31, 2024 increased by $2.3 million, or 36.0%, compared to the three months ended March 31, 2023 primarily as a result of increased employee compensation cost, including higher incentive compensation as a result of higher earnings. Selling, general and administrative expenses as a percentage of revenue decreased from 9.3% for the three months ended March 31, 2023, to 9.0% for the three months ended March 31, 2024, as we benefited from the scale of our operations.

	Six Months Ended March 31,
	2024				2023
	$		%		$		%
	(Dollars in thousands, Percentage of revenues)
Revenues	$	182,021	100.0	%	$	129,300	100.0	%
Cost of services		147,851	81.2			118,949	92.0
Gross profit		34,170	18.8			10,351	8.0
Selling, general and administrative expenses		15,554	8.5			12,089	9.3
Gain on sale of assets		(53)	—			(13,134)	(10.2)
Operating income (loss)	$	18,669	10.3	%	$	11,396	8.8	%

Revenues. Revenues in our Commercial & Industrial segment increased by $52.7 million, or 40.8%, during the six months ended March 31, 2024, compared to the six months ended March 31, 2023. The increase primarily relates to a large data center project.

Gross Profit. Our Commercial & Industrial segment’s gross profit during the six months ended March 31, 2024 increased by $23.8 million, or 230.1%, compared to the six months ended March 31, 2023. Gross profit as a percentage of revenue increased from 8.0% for the six months ended March 31, 2023 to 18.8% for the six months ended March 31, 2024. In the six months ended March 31, 2024, segment results benefited from improved project execution, including favorable project execution on the large data center project, improving bid margins in certain markets, and a more selective bidding strategy implemented in the prior year. Our results for the six months ended March 31, 2023 were impacted by continuing operating challenges at one branch that incurred significant losses during fiscal 2022 and into fiscal 2023.

Selling, General and Administrative Expenses. Our Commercial & Industrial segment’s selling, general and administrative expenses during the six months ended March 31, 2024 increased by $3.5 million, or 28.7%, compared to the six months ended March 31, 2023 primarily as a result of increased employee compensation cost, including higher incentive compensation as a result of higher earnings. Selling, general and administrative expenses as a percentage of revenue decreased from 9.3% for the six months ended March 31, 2023 to 8.5% for the six months ended March 31, 2024 as we benefited from the scale of our operations.

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Gain on Sale of Assets. As discussed above, our results for the six months ended March 31, 2023 include a pretax gain on sale of $13.0 million from the sale of STR in October 2022.

INTEREST AND OTHER EXPENSE, NET

	Three Months Ended March 31,
	2024		2023
	(In thousands)
Interest expense	$	336	$	982
Deferred financing charges		70		67
Total interest expense		406		1,049
Interest income		(1,091)		—
Other (income) expense, net		2,227		(1,768)
Total other (income) expense, net		1,136		(1,768)
Total interest and other (income) expense, net	$	1,542	$	(719)

During the three months ended March 31, 2024, we incurred interest expense of $0.4 million primarily comprised of interest on our finance lease agreements and fees on an average letter of credit balance of $5.6 million under our revolving credit facility and an average unused line of credit balance of $142.7 million. This compares to interest expense of $1.0 million for the three months ended March 31, 2023, primarily comprising interest expense from our revolving credit facility, which had an average outstanding balance of $43.5 million, in addition to fees on an average letter of credit balance of $5.0 million under our revolving credit facility and an average unused line of credit balance of $106.6 million. The decrease in interest expense in the three months ended March 31, 2024 compared to the three months ended March 31, 2023 was a result of a decrease in average outstanding borrowings under our revolving credit facility, which had no outstanding balance during the three months ended March 31, 2024.

The change in total other (income) expense, net for the three months ended March 31, 2024, compared to the three months ended March 31, 2023 is primarily the result of unrealized losses on investments in trading securities of $1.8 million in the three months ended March 31, 2024 compared to realized gains on investments in trading securities of $1.7 million in the three months ended March 31, 2023, partially offset by interest income of $1.1 million earned during the three months ended March 31, 2024 with no such interest income earned in the three months ended March 31, 2023.

	Six Months Ended March 31,
	2024		2023
	(In thousands)
Interest expense	$	663	$	2,101
Deferred financing charges		140		132
Total interest expense		803		2,233
Interest income		(2,267)		—
Other (income) expense, net		2,010		(1,073)
Total other income, net		(257)		(1,073)
Total interest and other expense, net	$	546	$	1,160

During the six months ended March 31, 2024, we incurred interest expense of $0.8 million primarily comprised of interest on our finance lease agreements and fees on an average letter of credit balance of $5.5 million under our revolving credit facility and an average unused line of credit balance of $142.5 million. This compares to interest expense of $2.2 million for the six months ended March 31, 2023, primarily comprised of interest expense from our revolving credit facility, which had an average outstanding balance of $52.4 million, in addition to fees on an average letter of credit balance of $5.2 million under our revolving credit facility and an average unused line of credit balance of $93.5 million. The reduction in interest expense in the six months ended March 31, 2024 compared to the six months ended March 31, 2023 was a result of a decrease in average outstanding borrowings under our revolving credit facility, which had no outstanding balance during the six months ended March 31, 2024.

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The decrease in total other income, net for the six months ended March 31, 2024, compared with March 31, 2023 is primarily the result of unrealized losses on investments in trading securities of $1.9 million in the six months ended March 31, 2024 compared to realized gains on investments in trading securities of $0.9 million in the six months ended March 31, 2023, partially offset by interest income of $2.3 million earned during the six months ended March 31, 2024 with no such interest income in the six months ended March 31, 2023.

PROVISION FOR INCOME TAXES

We recorded income tax expense of $19.4 million for the three months ended March 31, 2024, compared to $8.2 million for the three months ended March 31, 2023, driven by increased pretax income.

We recorded income tax expense of $34.8 million for the six months ended March 31, 2024, compared to $18.2 million for the six months ended March 31, 2023, driven by increased pretax income.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

Management’s discussion and analysis of financial condition and results of operations is based on our Condensed Consolidated Financial Statements included in this Quarterly Report on Form 10-Q, which have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP"). The preparation of our Condensed Consolidated Financial Statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosures of contingent assets and liabilities known to exist as of the date of the Condensed Consolidated Financial Statements, and the reported amounts of revenues and expenses recognized during the periods presented. We review all significant estimates affecting our Condensed Consolidated Financial Statements on a recurring basis and record the effect of any necessary adjustments prior to their publication. Judgments and estimates are based on our beliefs and assumptions derived from information available at the time such judgments and estimates are made. Uncertainties with respect to such estimates and assumptions are inherent in the preparation of financial statements. There can be no assurance that actual results will not differ from those estimates. For a discussion of our significant accounting policies, please see our Annual Report on Form 10-K for the fiscal year ended September 30, 2023. Some of the more significant estimates include revenue recognition, business combinations, valuation allowance for deferred tax assets and income taxes.

There have been no significant changes to our accounting policies as disclosed in our Annual Report on Form 10-K for the fiscal year ended September 30, 2023.

REMAINING PERFORMANCE OBLIGATIONS AND BACKLOG

Remaining performance obligations represent the unrecognized revenue value of our contractual commitments. While backlog is not a defined term under GAAP, it is a common measurement used in our industry, and we believe it improves our ability to forecast future results and identify operating trends that may not otherwise be apparent. Backlog is a measure of revenue that we expect to recognize from work that has yet to be performed on uncompleted contracts and from work that has been contracted but has not started, exclusive of short-term projects. While all of our backlog is supported by documentation from customers, backlog is not a guarantee of future revenues, as contractual commitments may change and our performance may vary. Not all of our work is performed under contracts included in backlog; for example, most of the apparatus repair work that is completed by our Infrastructure Solutions segment is performed under master service agreements on an as-needed basis. Additionally, electrical installation services for single-family housing at our Residential segment are completed on a short-term basis and are therefore excluded from backlog. The table below summarizes our remaining performance obligations and backlog (in thousands):

	March 31,		December 31,		September 30,		June 30,
	2024		2023		2023		2023
Remaining performance obligations	$	1,065,444	$	1,072,593	$	1,143,423	$	1,071,605
Agreements without an enforceable obligation (1)		297,451		379,463		414,589		458,057
Backlog	$	1,362,895	$	1,452,056	$	1,558,012	$	1,529,662
(1) Our backlog contains signed agreements and letters of intent, which we do not have a legal right to enforce prior to work starting. These arrangements are excluded from remaining performance obligations until work begins.

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WORKING CAPITAL

During the six months ended March 31, 2024, working capital exclusive of cash increased by $61.4 million from September 30, 2023, reflecting a $95.0 million increase in current assets excluding cash partially offset by a $33.7 million increase in current liabilities during the period.

During the six months ended March 31, 2024, our current assets exclusive of cash increased to $690.5 million, as compared to $595.5 million as of September 30, 2023. An increase in activity at our Communications, Infrastructure Solutions and Commercial & Industrial businesses drove a $52.8 million increase in trade accounts receivable. While the rate of collections may vary, our typically secured position, resulting from our ability in general to secure liens against our customers’ overdue receivables, offers some protection that collection will occur eventually to the extent that our security retains value. We also had a $23.5 million increase in prepaid expenses and other current assets as we invested in equity and debt securities in the second quarter of fiscal 2024, a $10.1 million increase in retainage driven by the timing of large projects approaching completion, and a $9.0 million increase in inventories from advance material purchases primarily for projects not yet commenced in our Residential multi-family business.

During the six months ended March 31, 2024, our total current liabilities increased by $33.7 million to $434.2 million, compared to $400.6 million as of September 30, 2023, driven by a $24.0 million increase in billings in excess of costs and estimated earnings driven by the timing of contract billings on projects on which revenue is recognized using the percentage of completion method, and a $9.7 million increase in accounts payable and accrued expenses primarily as a result of the timing of payments by our Communications segment.

Surety

We believe the bonding capacity provided by our sureties is adequate for our current operations and will be adequate for our operations for the foreseeable future. As of March 31, 2024, the estimated cost to complete our bonded projects was approximately $138.6 million.

LIQUIDITY AND CAPITAL RESOURCES

The Revolving Credit Facility

We are a party to the Third Amended and Restated Credit and Security Agreement (the "Amended Credit Agreement"), which provides for a maximum borrowing amount of $150 million. The Amended Credit Agreement contains customary affirmative, negative and financial covenants and events of default.

Borrowings under the Amended Credit Agreement may not exceed a Borrowing Base, as defined in the Amended Credit Agreement, that is determined monthly based on available collateral, primarily certain accounts receivables, inventories, and equipment. Amounts outstanding bear interest at a per annum rate equal to the Daily Three Month Secured Overnight Financing Rate ("SOFR"), plus an interest rate margin, which is determined quarterly, based on the following thresholds:

Level	Thresholds	Interest Rate Margin
I	If Liquidity is less than 35% of the Maximum Revolver Amount (each as defined in the Amended Credit Agreement) at any time during the period	2.00 percentage points
II	If Liquidity is greater than or equal to 35% of the Maximum Revolver Amount at all times during the period and less than 50% of the Maximum Revolver Amount at any time during the period	1.75 percentage points
III	If Liquidity is greater than or equal to 50% of the Maximum Revolver Amount at all times during the period	1.50 percentage points

In addition, we are charged monthly in arrears for (1) an unused commitment fee of 0.25% per annum, (2) a collateral monitoring fee of $5 thousand per quarter, (3) a letter of credit fee based on the then-applicable interest rate margin (4) appraisal fees, costs and expenses and (5) certain other fees and charges as specified in the Amended Credit Agreement.

As of March 31, 2024, we were in compliance with the financial covenants under the Amended Credit Agreement, requiring that we maintain:

•a Fixed Charge Coverage Ratio (as defined in the Amended Credit Agreement), measured quarterly on a trailing four-quarter basis at the end of each quarter, of at least 1.1 to 1.0; and

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•minimum Liquidity of at least 10% of the Maximum Revolver Amount, or $15.0 million; with, for purposes of this covenant, at least 50% of our Liquidity comprised of Excess Availability (as defined in the Amended Credit Agreement).

At March 31, 2024, our Liquidity was $249.5 million, our Excess Availability was $143.5 million (or greater than 50% of minimum Liquidity), and our Fixed Charge Coverage Ratio was 7.9:1.0.

If in the future our Liquidity falls below $15.0 million (or Excess Availability falls below 50% of our minimum Liquidity), our Fixed Charge Coverage Ratio is less than 1.1:1.0, or if we otherwise fail to perform or otherwise comply with certain of our covenants or other agreements under the Amended Credit Agreement, it would result in an event of default under the Amended Credit Agreement, which could result in some or all of our then-outstanding indebtedness becoming immediately due and payable.

At March 31, 2024, we had $5.6 million in outstanding letters of credit and no outstanding borrowings under our revolving credit facility.

Operating Activities

Our cash flow from operations is not only influenced by cyclicality, demand for our services, operating margins and the type of services we provide, but can also be influenced by working capital needs such as the timing of our receivable collections. Working capital needs are generally lower during our fiscal first and second quarters due to the seasonality that we experience in many regions of the country; however, a seasonal decline in working capital may be offset by needs associated with higher growth or acquisitions. Currently, our working capital needs are higher than they have been historically, as a result of growth of our business and elevated commodity prices.

Net cash provided by operating activities was $58.7 million during the six months ended March 31, 2024, as compared to $60.1 million in the six months ended March 31, 2023. The decrease in operating cash flow resulted from an increase in cash used in working capital during the six months ended March 31, 2024 as compared with the six months ended March 31, 2023, largely offset by increased earnings.

Investing Activities

Net cash used in investing activities was $11.4 million for the six months ended March 31, 2024, compared to $12.3 million provided by investing activities in the six months ended March 31, 2023. During the six months ended March 31, 2024, we used $13.4 million for capital expenditures to support the growth of our business, which was partially offset by cash provided by the sale of assets of $2.4 million. During the six months ended March 31, 2023, the sale of assets, including the sale of STR, provided cash of $19.1 million, which was partially offset by $6.7 million used for capital expenditures.

Financing Activities

Net cash used in financing activities for the six months ended March 31, 2024 was $17.1 million, compared to $82.1 million for the six months ended March 31, 2023. Net cash used in financing activities for the six months ended March 31, 2024 included $4.1 million to settle our contingent consideration liability related to prior year acquisitions, $7.9 million in distributions to noncontrolling interests under operating agreements in connection with certain acquisitions, and $3.2 million in repurchases our common stock to satisfy statutory withholding requirements upon the vesting of employee stock compensation. Net cash used in financing activities for the six months ended March 31, 2023 included net repayments on our credit facility of $67.5 million, $7.6 million used to repurchase our common stock, including repurchases to satisfy statutory withholding requirements upon the vesting of employee stock compensation, and distributions of $5.3 million to noncontrolling interests under operating agreements in connection with certain acquisitions.

Stock Repurchase Program

In December 2022, our Board authorized a stock repurchase program for the purchase from time to time of up to $40.0 million of the Company’s common stock, replacing the Company's previous repurchase program. Share purchases are made for cash in open market transactions at prevailing market prices or in privately negotiated transactions or otherwise. The timing and amount of purchases under the program are determined based upon prevailing market conditions, our liquidity requirements, contractual restrictions and other factors. All or part of the repurchases may be implemented under a Rule 10b5-1 trading plan, which allows repurchases under pre-set terms at times when the Company might otherwise be prevented from purchasing under insider trading laws or because of self-imposed blackout periods. The program does not require the Company to purchase any specific number of shares and may be modified, suspended, reinstated, or terminated at any time at the Company’s discretion and without notice. We had no purchases pursuant to our repurchase programs during the six months ended March 31, 2024.

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MATERIAL CASH REQUIREMENTS

From time to time, we may enter into firm purchase commitments for materials, such as copper or aluminum wire, which we expect to use in the ordinary course of business. These commitments are typically for terms of less than one year and require us to buy minimum quantities of materials at specific intervals at a fixed price over the term. As of March 31, 2024, we did not have any such firm commitments to purchase materials outstanding. In connection with expected growth in our business, we are planning to expand capacity in certain areas. Further, based on increased availability of vehicles and other equipment needed in the business and the relative costs and benefits of purchasing compared with leasing, we expect to satisfy a larger proportion of our vehicle and other equipment needs through purchasing and to reduce our reliance on leasing. As a result, we have updated our capital expenditure expectations for the current fiscal year, and now expect our capital spending for the year ending September 30, 2024 will range from $35 million to $45 million, compared to $17.7 million for the year ended September 30, 2023. There have been no other material changes in our material cash requirements from those disclosed in our Annual Report on Form 10-K for the fiscal year ended September 30, 2023. We expect that cash and cash equivalents, cash flow from operations and availability under our revolving credit facility will be sufficient to satisfy cash requirements during at least the next 12 months.

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Item 3. Quantitative and Qualitative Disclosures About Market Risk

Management is actively involved in monitoring exposure to market risk and continues to develop and utilize appropriate risk management techniques. Our exposure to significant market risks includes fluctuations in labor costs and commodity prices. We are also exposed to interest rate risk with respect to our outstanding borrowings under our revolving credit facility. For additional information see “Disclosure Regarding Forward-Looking Statements” in Part I of this Quarterly Report on Form 10-Q and our risk factors in Part I, Item 1A. “Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended September 30, 2023.

Commodity Risk

Our exposure to significant market risks includes fluctuations in commodity prices for copper, aluminum, steel, electronic components, certain plastics, and fuel. Commodity price risks may have an impact on our results of operations due to the fixed-price nature of many of our contracts. Over the long term, we expect to be able to pass along a portion of these costs to our customers, as market conditions in the industries we serve will allow.

Interest Rate Risk

Floating rate debt, where the interest rate fluctuates periodically, exposes us to short-term changes in market interest rates. Any long-term debt that may be outstanding from time to time under our revolving credit facility is structured on floating rate terms. We currently do not maintain any hedging contracts that would limit our exposure to variable rates of interest when we have outstanding borrowings under our revolving credit facility. The Amended Credit Agreement uses SOFR as the benchmark for establishing the interest rate charged on our borrowings. If SOFR were to increase, our interest payment obligations on any then-outstanding borrowings would increase, having a negative effect on our cash flow and financial condition. We had no borrowings outstanding under our revolving credit facility as of March 31, 2024.

Item 4. Controls and Procedures

Changes in Internal Control Over Financial Reporting

There have not been any changes in the Company’s internal control over financial reporting (as such term is defined in Rules 13a-15 and 15d-15 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)) during the fiscal quarter to which this report relates that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

Disclosure Controls and Procedures

In accordance with Rules 13a-15 and 15d-15 of the Exchange Act, we carried out an evaluation, under the supervision and with the participation of management, including our Chief Executive Officer and our Chief Financial Officer, of the effectiveness of our disclosure controls and procedures as of the end of the period covered by this report. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of March 31, 2024, to provide reasonable assurance that information required to be disclosed in our reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms. Our disclosure controls and procedures include controls and procedures designed to ensure that information required to be disclosed in reports filed or submitted under the Exchange Act is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

For information regarding legal proceedings, see Note 11, “Commitments and Contingencies – Legal Matters” in the Notes to our Condensed Consolidated Financial Statements set forth in Part I, Item 1 of this Quarterly Report on Form 10-Q, which is incorporated herein by reference.

Item 1A. Risk Factors

There have been no material changes to the risk factors disclosed under Part I, Item 1A. “Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended September 30, 2023.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Date	Total Number of Shares Purchased (1)	Average Price Paid Per Share		Total Number of Shares Purchased as Part of a Publicly Announced Plan	Maximum Dollar Value of Shares That May Yet Be Purchased Under the Publicly Announced Plan (2)
January 1, 2024 – January 31, 2024	5,010	$	77.40	—	$	37,588,964
February 1, 2024 – February 28, 2024	—	$	—	—	$	37,588,964
March 1, 2024 – March 31, 2024	16,508	$	115.14	—	$	37,588,964
Total	21,518	$	106.35	—	$	37,588,964

(1)    The total number of shares purchased includes shares of common stock repurchased from our employees to satisfy statutory tax withholding requirements upon the vesting of certain stock awards under the Equity Incentive Plan.

(2)    In December 2022, our Board authorized a stock repurchase program for the purchase of up to $40 million of the Company’s common stock from time to time.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

None.

Item 5. Other Information

Rule 10b5-1 Trading Arrangements

From time to time, members of the Company's Board of Directors and officers of the Company may enter into Rule 10b5-1 trading plans, which allow for the purchase or sale of common stock under pre-established terms at times when directors and officers might otherwise be prevented from trading under insider trading laws or because of self-imposed blackout periods. Such trading plans are intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act and comply with the Company's Insider Trading Policy. Other than as described below, during the three months ended March 31, 2024, none of the Company's directors or officers adopted, modified or terminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement” as each term is defined under Item 408 of Regulation S-K.

On March 6, 2024, Jeffrey L. Gendell, Chairman and Chief Executive Officer of the Company, adopted a Rule 10b5-1 trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act. Sales under Mr. Gendell’s plan, which provides for the potential sale of up to an aggregate of 200,000 shares of the Company’s common stock, may commence as soon as 90 calendar days from the execution date of the trading plan and shall end, subject to certain conditions, on the earlier of (a) March 7, 2025 and (b) the date that all shares subject to the plan have been sold.

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Item 6. Exhibits

Exhibit No.	Description
3.1 —	Second Amended and Restated Certificate of Incorporation of IES Holdings, Inc., as amended by the Certificate of Amendment thereto, effective May 24, 2016 (composite). (Incorporated by reference to Exhibit 3.1 to the Company’s Quarterly Report on Form 10-Q filed on August 8, 2016).
3.2 —	Amended and Restated Bylaws of IES Holdings, Inc., effective April 28, 2021. (Incorporated by reference to Exhibit 3.3 to the Company's Quarterly Report on Form 10-Q filed on April 30, 2021).
4.1 —	Specimen common stock certificate. (Incorporated by reference to Exhibit 4.1 to the Company’s Annual Report on Form 10-K filed on December 9, 2016).
31.1 —	Rule 13a-14(a)/15d-14(a) Certification of Jeffrey L. Gendell, Chief Executive Officer (1)
31.2 —	Rule 13a-14(a)/15d-14(a) Certification of Tracy A. McLauchlin, Senior Vice President, Chief Financial Officer and Treasurer (1)
32.1 —	Section 1350 Certification of Jeffrey L. Gendell, Chief Executive Officer (2)
32.2 —	Section 1350 Certification of Tracy A. McLauchlin, Senior Vice President, Chief Financial Officer and Treasurer (2)
101.INS	Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document (1)
101.SCH	XBRL Schema Document (1)
101.LAB	XBRL Label Linkbase Document (1)
101.PRE	XBRL Presentation Linkbase Document (1)
101.DEF	XBRL Definition Linkbase Document (1)
101.CAL	XBRL Calculation Linkbase Document (1)
104	Cover Page Interactive Data File - the cover page interactive data file does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
(1)	Filed herewith.
(2)	Furnished herewith.

38

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, on May 3, 2024.

IES HOLDINGS, INC.
By:	/s/ TRACY A. MCLAUCHLIN
	Tracy A. McLauchlin
	Senior Vice President, Chief Financial Officer and Treasurer
	(Principal Financial Officer and Authorized Signatory)

39

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Jeffrey L. Gendell, certify that:

     1. I have reviewed this Quarterly Report on Form 10-Q of IES Holdings, Inc.;

     2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

     3. Based on my knowledge, the financial statements and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this report;

     4. The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

     (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

     (b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

     (c) Evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

     (d) Disclosed in this report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the Registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting; and

     5. The Registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant’s auditors and the audit committee of the Registrant’s board of directors (or persons performing the equivalent functions):

     (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize and report financial information; and

     (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal control over financial reporting.

Date: May 3, 2024

/s/  JEFFREY L. GENDELL

Jeffrey L. Gendell

Chief Executive Officer as Principal Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Tracy A. McLauchlin, certify that:

     1. I have reviewed this Quarterly Report on Form 10-Q of IES Holdings, Inc.;

     2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

     3. Based on my knowledge, the financial statements and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this report;

     4. The Registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Registrant and have:

     (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

     (b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

     (c) Evaluated the effectiveness of the Registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

     (d) Disclosed in this report any change in the Registrant’s internal control over financial reporting that occurred during the Registrant’s most recent fiscal quarter (the Registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting; and

     5. The Registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the Registrant’s auditors and the audit committee of the Registrant’s board of directors (or persons performing the equivalent functions):

     (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the Registrant’s ability to record, process, summarize and report financial information; and

     (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant’s internal control over financial reporting.

Date: May 3, 2024

/s/  TRACY A. MCLAUCHLIN

Tracy A. McLauchlin

Senior Vice President, Chief Financial Officer and Treasurer

as Principal Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with this Quarterly Report of IES Holdings, Inc. (the “Company”) on Form 10-Q for the period ending March 31, 2024 (the “Report”), I, Jeffrey L. Gendell, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 3, 2024	By:	/s/ JEFFREY L. GENDELL
		Jeffrey L. Gendell
		Chief Executive Officer as Principal Executive Officer

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with this Quarterly Report of IES Holdings, Inc. (the “Company”) on Form 10-Q for the period ending March 31, 2024 (the “Report”), I, Tracy A. McLauchlin, Senior Vice President, Chief Financial Officer and Treasurer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1)The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: May 3, 2024	By:	/s/ TRACY A. MCLAUCHLIN
		Tracy A. McLauchlin
		Senior Vice President, Chief Financial Officer and Treasurer as Principal Financial Officer

XML

DEI Document - shares	6 Months Ended
	Mar. 31, 2024	Apr. 30, 2024
Entity Information [Line Items]
Entity File Number	001-13783
Entity Registrant Name	IES Holdings, Inc.
Document Period End Date	Mar. 31, 2024
Document Quarterly Report	true
Document Transition Report	false
Entity Central Index Key	0001048268
Entity Incorporation, State or Country Code	DE
Document Type	10-Q
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--09-30
Entity Filer Category	Accelerated Filer
Entity Tax Identification Number	76-0542208
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	IESC
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Address, Address Line One	2 Riverway
Entity Address, Address Line Two	Suite 1730
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77056
City Area Code	713
Local Phone Number	860-1500
Entity Common Stock, Shares Outstanding		20,243,458

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Statement of Financial Position [Abstract]
Cash and cash equivalents	$ 105,969	$ 75,770
Accounts receivable	416,657	363,836
Accounts and Other Receivables, Net, Current	86,992	76,934
Inventories	104,612	95,655
Costs and estimated earnings in excess of billings	48,284	48,620
Prepaid expenses and other current assets	33,984	10,481
Total current assets	796,498	671,296
Property and equipment, net	67,820	63,410
Goodwill	92,395	92,395
Intangible assets, net	50,075	56,208
Deferred tax assets	21,276	20,383
Operating right of use assets	57,564	61,761
Other non-current assets	15,536	16,147
Total assets	1,101,164	981,600
Accounts payable and accrued expenses	306,463	296,797
Billings in excess of costs and estimated earnings	127,767	103,771
Total current liabilities	434,230	400,568
Long-term debt	0	0
Operating long-term lease liabilities	38,175	42,098
Liability for Uncertainty in Income Taxes, Noncurrent	22,799	22,047
Other non-current liabilities	10,996	16,951
Total liabilities	506,200	481,664
Noncontrolling interest	60,158	49,951
Preferred stock, value	0	0
Common stock, value	220	220
Treasury stock, value	(50,428)	(49,450)
Additional paid-in capital	204,088	203,431
Retained earnings	380,926	295,784
Total stockholders' equity	534,806	449,985
Total liabilities and stockholders' equity	$ 1,101,164	$ 981,600

XML

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Statement of Financial Position [Abstract]
Accounts Receivable, Allowance for Credit Loss, Current	$ (1,887)	$ (1,649)
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	100,000,000	100,000,000
Common Stock, Shares, Issued	22,049,529	22,049,529
Common Stock, Shares, Outstanding	20,243,458	20,194,218
Treasury Stock, Shares	1,806,071	1,855,311

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenues	$ 705,733	$ 568,881	$ 1,340,177	$ 1,143,755
Cost of services	534,120	467,955	1,024,760	947,391
Gross profit	171,613	100,926	315,417	196,364
Selling, general and administrative expenses	95,272	69,349	181,122	137,117
Contingent consideration	0	69	35	138
Loss (gain) on sale of assets	(1,373)	(102)	(1,444)	(13,162)
Operating income (loss)	77,714	31,610	135,704	72,271
Interest expense	406	1,049	803	2,233
Other (income) expense, net	1,136	(1,768)	(257)	(1,073)
Income (loss) from operations before income taxes	76,172	32,329	135,158	71,111
Provision for (benefit from) income taxes	19,372	8,157	34,770	18,185
Net income (loss)	56,800	24,172	100,388	52,926
Net income attributable to noncontrolling interest	(3,891)	(2,621)	(6,523)	(4,973)
Net Income (Loss) Available to Common Stockholders, Basic	$ 52,909	$ 21,551	$ 93,865	$ 47,953
Earnings Per Share, Basic	$ 2.32	$ 0.93	$ 4.21	$ 2.08
Earnings Per Share, Diluted	$ 2.29	$ 0.92	$ 4.16	$ 2.06
Weighted Average Number of Shares Outstanding, Basic	20,227,342	20,170,824	20,213,421	20,206,814
Weighted Average Number of Shares Outstanding, Diluted	20,479,755	20,387,796	20,449,691	20,414,492

XML

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Treasury Stock, Common	Additional Paid-in Capital [Member]	Retained Earnings [Member]
Stockholders' Equity Attributable to Parent at Sep. 30, 2022	$ 361,288	$ 220	$ (44,000)	$ 201,871	$ 203,197
Shares, Issued at Sep. 30, 2022		22,049,529	1,707,629
Issuances under compensation plans	0		$ (1,843)	(1,843)
Issuances under compensation plans, shares			71,013
Acquisition of treasury stock	7,637		$ 7,647	(10)
Acquisition of treasury stock, shares			(243,392)
Options exercised	14		$ 53	39
Options exercised, shares			2,000
Non-cash compensation	(1,959)			(1,959)
Noncontrolling Interest, Change in Redemption Value	(5,826)				(5,826)
Stockholders' Equity Attributable to Parent at Mar. 31, 2023	397,751	$ 220	$ (49,751)	201,958	245,324
Shares, Issued at Mar. 31, 2023		22,049,529	1,878,008
Net Income (Loss) Available to Common Stockholders, Basic	47,953				47,953
Stockholders' Equity Attributable to Parent at Dec. 31, 2022	378,051	$ 220	$ (49,653)	200,940	226,544
Shares, Issued at Dec. 31, 2022		22,049,529	1,875,676
Acquisition of treasury stock	148		$ 151	(3)
Acquisition of treasury stock, shares			(4,332)
Options exercised	14		$ 53	39
Options exercised, shares			2,000
Non-cash compensation	(1,054)			(1,054)
Noncontrolling Interest, Change in Redemption Value	(2,771)				(2,771)
Stockholders' Equity Attributable to Parent at Mar. 31, 2023	397,751	$ 220	$ (49,751)	201,958	245,324
Shares, Issued at Mar. 31, 2023		22,049,529	1,878,008
Net Income (Loss) Available to Common Stockholders, Basic	21,551				21,551
Stockholders' Equity Attributable to Parent at Sep. 30, 2023	449,985	$ 220	$ (49,450)	203,431	295,784
Shares, Issued at Sep. 30, 2023		22,049,529	1,855,311
Issuances under compensation plans	0		$ (2,213)	(2,213)
Issuances under compensation plans, shares			82,180
Acquisition of treasury stock	3,218		$ 3,218	0
Acquisition of treasury stock, shares			(33,940)
Options exercised	8		$ 27	19
Options exercised, shares			1,000
Non-cash compensation	(2,889)			(2,889)
Noncontrolling Interest, Change in Redemption Value	(8,723)				(8,723)
Stockholders' Equity Attributable to Parent at Mar. 31, 2024	534,806	$ 220	$ (50,428)	204,088	380,926
Shares, Issued at Mar. 31, 2024		22,049,529	1,806,071
Net Income (Loss) Available to Common Stockholders, Basic	93,865				93,865
Stockholders' Equity Attributable to Parent at Dec. 31, 2023	488,643	$ 220	$ (49,521)	203,986	333,958
Shares, Issued at Dec. 31, 2023		22,049,529	1,835,553
Issuances under compensation plans	0		$ (1,355)	(1,355)
Issuances under compensation plans, shares			50,000
Acquisition of treasury stock	2,289		$ 2,289	0
Acquisition of treasury stock, shares			(21,518)
Options exercised	8		$ 27	19
Options exercised, shares			1,000
Non-cash compensation	(1,476)			(1,476)
Noncontrolling Interest, Change in Redemption Value	(5,941)				(5,941)
Stockholders' Equity Attributable to Parent at Mar. 31, 2024	534,806	$ 220	$ (50,428)	$ 204,088	380,926
Shares, Issued at Mar. 31, 2024		22,049,529	1,806,071
Net Income (Loss) Available to Common Stockholders, Basic	$ 52,909				$ 52,909

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Cash Flows [Abstract]
Net income (loss)	$ 100,388	$ 52,926
Bad debt expense	503	330
Deferred financing cost amortization	140	132
Depreciation and amortization	15,438	13,252
Gain (Loss) on Disposition of Property Plant Equipment	(1,444)	(13,162)
Non-cash compensation expense	2,925	1,956
Deferred income taxes	1,932	6,955
Unrealized Gain (Loss) on Investments	1,790	0
Accounts receivable	(53,324)	35,660
Inventories	(8,957)	(11,798)
Costs and estimated earnings in excess of billings	336	4,120
Prepaid expenses and other current assets	(35,252)	(11,672)
Other non-current assets	290	1,728
Accounts payable and accrued expenses	9,462	(30,454)
Billings in excess of costs and estimated earnings	23,996	10,109
Other non-current liabilities	470	(23)
Net cash provided by operating activities	58,693	60,059
Capital expenditures	(13,359)	(6,677)
Proceeds from sale of assets	2,375	19,124
Cash paid in conjunction with business combinations	(380)	(165)
Net cash used in investing activities	(11,364)	12,282
Borrowings of debt	1,346,388	1,162,971
Repayments of debt	(1,346,388)	(1,230,519)
Cash paid for finance leases	(1,981)	(1,617)
Payment for Contingent Consideration Liability, Financing Activities	4,074	0
Distribution to noncontrolling interest	(7,865)	(5,272)
Purchase of treasury stock	(3,218)	(7,637)
Options exercised	8	14
Net cash used in financing activities	(17,130)	(82,060)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	30,199	(9,719)
CASH, CASH EQUIVALENTS, beginning of period	75,770	24,848
CASH, CASH EQUIVALENTS, end of period	105,969	15,129
Cash paid for interest	269	1,765
Cash paid for income taxes (net)	$ 37,449	$ 4,660

XML

Business

6 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Business Description and Basis of Presentation [Text Block]

1. BUSINESS AND ACCOUNTING POLICIES

Description of the Business

IES Holdings, Inc. designs and installs integrated electrical and technology systems and provides infrastructure products and services to a variety of end markets, including data centers, residential housing and commercial and industrial facilities. Our operations are organized into four business segments, based upon the nature of our services:

•Communications – Nationwide provider of technology infrastructure services, including the design, build, and maintenance of the communications infrastructure within data centers for co-location and managed hosting customers, for both large corporations and independent businesses.

•Residential – Regional provider of electrical installation services for single-family housing and multi-family apartment complexes, as well as heating, ventilation and air conditioning (HVAC) and plumbing installation services in certain markets.

•Infrastructure Solutions – Provider of electro-mechanical solutions for industrial operations, including apparatus repair and custom-engineered products such as generator enclosures used in data centers and other industrial applications.

•Commercial & Industrial – Provider of electrical and mechanical design, construction, and maintenance services to the commercial and industrial markets in various regional markets and nationwide in certain areas of expertise, such as the power infrastructure market and data centers.

The words “IES”, the “Company”, “we”, “our”, and “us” refer to IES Holdings, Inc. and, except as otherwise specified herein, to our consolidated subsidiaries.

Seasonality and Quarterly Fluctuations

Results of operations from our Residential segment can be seasonal, depending on weather trends, with typically higher revenues generated during spring and summer and lower revenues generated during fall and winter. The Commercial & Industrial, Communications and Infrastructure Solutions segments of our business are less subject to seasonal trends, as work in these segments generally is performed inside structures protected from the weather, although weather can still impact these businesses, especially in the early stages of projects. From quarter to quarter, results for our Communications, Residential, and Commercial & Industrial segments may be materially affected by the timing of new construction projects, and our volume of business may be adversely affected by declines in construction projects resulting from adverse regional or national economic conditions. Quarterly results for our Infrastructure Solutions segment may be affected by the timing of outages or capital projects at our customers’ facilities. Accordingly, operating results for any fiscal period are not necessarily indicative of results that may be achieved for any subsequent fiscal period.

Basis of Financial Statement Preparation

The accompanying unaudited Condensed Consolidated Financial Statements include the accounts of IES, our wholly-owned subsidiaries, and entities that we control due to ownership of a majority of voting interest and have been prepared in accordance with the instructions to interim financial reporting as prescribed by the United States Securities and Exchange Commission (the “SEC”). The results for the interim periods are not necessarily indicative of results for the entire year. These interim financial statements do not include all disclosures required by U.S. generally accepted accounting principles (“GAAP”) and should be read in conjunction with the consolidated financial statements and notes thereto filed with the SEC in our Annual Report on Form 10-K for the fiscal year ended September 30, 2023. In the opinion of management, the unaudited Condensed Consolidated Financial Statements contained in this report include all known accruals and adjustments necessary for a fair presentation of the financial position, results of operations, and cash flows for the periods reported herein. Any such adjustments are of a normal recurring nature.

Noncontrolling Interest

In connection with our acquisitions of Edmonson Electric, LLC and Bayonet Plumbing, Heating & Air-Conditioning, LLC (“Bayonet”) in fiscal 2021, and NEXT Electric, LLC in fiscal 2017, we acquired an 80 percent interest in each of the entities, with the remaining 20 percent interest in each such entity being retained by the respective third-party seller. The interests retained by those third-party sellers are identified on our Condensed Consolidated Balance Sheets as noncontrolling interest, classified outside of permanent equity. Under the terms of each entity’s operating agreement, after five years from the date of the acquisition, we may elect to purchase, or the third-party seller may require us to purchase, part or all of the remaining 20 percent interest in the applicable entity. In each case, the purchase price is variable, based on a multiple of earnings as defined in the applicable operating agreement. Therefore, each noncontrolling interest is carried at the greater of the balance determined under Accounting Standards Codification

(“ASC”) 810 and the redemption amounts assuming the noncontrolling interest was redeemable at the balance sheet date. If all of the noncontrolling interests remaining outstanding at March 31, 2024 had been redeemable at that date, the aggregate redemption amount would have been $60,158.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires the use of estimates and assumptions by management in determining the reported amounts of assets and liabilities, disclosures of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates are primarily used in our revenue recognition of construction in progress, fair value assumptions in accounting for business combinations, stock-based compensation, reserves for legal matters, and realizability of deferred tax assets and unrecognized tax benefits.

Accounting Standards Update and Change in Accounting Principle

In October 2021, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers (“ASU 2021-08”). This standard amends the existing guidance under ASC 805 to add contract assets and contract liabilities to the list of exceptions to the recognition and measurement principles that apply to business combinations. Under this standard, the acquirer of a business is expected to recognize and measure acquired contract assets and contract liabilities as if the acquirer entered into the original contract on the same date with the same terms in accordance with ASC 606 rather than at fair value on the date of acquisition. This update is effective for fiscal years beginning after December 15, 2022 and for interim periods within that year. We adopted this standard on October 1, 2023 using the prospective method. ASU 2021-08 will impact how we account for future business combinations.

XML

Controlling Shareholder

6 Months Ended

Mar. 31, 2024

Risks and Uncertainties [Abstract]

Controlling Shareholder [Text Block]

2. CONTROLLING STOCKHOLDER

Tontine Associates, L.L.C. (“Tontine Associates”), together with its affiliates (collectively, “Tontine”), is the Company’s controlling stockholder, owning approximately 56 percent of the Company’s outstanding common stock based on Amendment No. 29 to the Schedule 13D filed by Tontine with the SEC on March 15, 2024 and the Company's shares outstanding as of April 30, 2024. Accordingly, Tontine has the ability to exercise significant control over our affairs, including the election of directors and most actions requiring the approval of stockholders.

While Tontine is subject to certain restrictions under federal securities laws on sales of its shares as an affiliate, the Company has filed a shelf registration statement to register all of the shares of IES common stock owned by Tontine at the time of registration. As long as the shelf registration statement remains effective and the Company remains eligible to use it, Tontine has the ability to resell any or all of its registered shares from time to time in one or more offerings, as described in the shelf registration statement and in any prospectus supplement filed in connection with an offering pursuant to the shelf registration statement.

Should Tontine sell or otherwise dispose of all or a portion of its position in IES, a change in control of IES could occur. A change of control would trigger the change of control provisions in a number of our material agreements, including our credit agreement, bonding agreements with our sureties and our executive severance plan.

Jeffrey L. Gendell was appointed as Chief Executive Officer of the Company effective October 1, 2020, having served as the Company's Interim Chief Executive Officer since July 31, 2020. Mr. Gendell also serves as Chairman of the Board of Directors, a position he has held since November 2016. He is the managing member and founder of Tontine, and the brother of David B. Gendell, who has served as a member of our Board of Directors since February 2012, and who previously served as Interim Director of Operations from November 2017 to January 2019, as Vice Chairman of the Board from November 2016 to November 2017 and as Chairman of the Board from January 2015 to November 2016. David B. Gendell was an employee of Tontine from 2004 until January 2018.

The Company is party to a sublease agreement with Tontine Associates for corporate office space in Greenwich, Connecticut. In December 2022, the Company entered into an amendment of the sublease agreement, which was set to terminate on February 28, 2023, to extend the term of the agreement through August 31, 2024 and to increase the monthly payments from approximately $8 to approximately $9 effective March 1, 2023. Payments by the Company are at a rate consistent with that paid by Tontine Associates to its landlord.

On December 6, 2018, the Company entered into a Board Observer Letter Agreement (the "Observer Agreement") with Tontine Associates in order to assist Tontine in managing its investment in the Company. Subject to the terms and conditions set forth in the Observer Agreement, the Company granted Tontine the right, at any time that Tontine holds at least 20% of the outstanding common stock of the Company, to appoint a representative to serve as an observer to the Board (the “Board Observer”). The Board Observer, who must be reasonably acceptable to those members of the Board who are not affiliates of Tontine, shall have no voting rights or other decision making authority. Subject to the terms and conditions set forth in the Observer Agreement, so long as Tontine has the

right to appoint a Board Observer, the Board Observer will have the right to attend and participate in meetings of the Board and the committees thereof, subject to confidentiality requirements, and to receive reimbursement for reasonable out-of-pocket expenses incurred in his or her capacity as a Board Observer and such rights to coverage under the Company’s directors’ and officers’ liability insurance policy as are available to the Company’s directors.

XML

Revenue Recognition

6 Months Ended

Mar. 31, 2024

Revenue Recognition and Deferred Revenue [Abstract]

Revenue from External Customers by Products and Services [Table Text Block]

3. REVENUE RECOGNITION

Contracts

Our revenue is derived from contracts with customers, and we determine the appropriate accounting treatment for each contract at its inception. Our contracts primarily relate to electrical and mechanical contracting services, technology infrastructure products and services, and electro-mechanical solutions for industrial operations. Revenue is earned based upon an agreed fixed price or actual costs incurred plus an agreed upon percentage.

We account for a contract when: (i) it has approval and commitment from both parties, (ii) the rights of the parties are identified, (iii) payment terms are identified, (iv) the contract has commercial substance, and (v) collectability of consideration is probable. We consider the start of a project to be when the above criteria have been met and we have written authorization from the customer to proceed.

Performance Obligations

A performance obligation is a promise in a contract to transfer a distinct good or service to the customer. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied.

We recognize revenue over time for the majority of the services we perform, other than the Residential Single-family and Infrastructure Solutions Industrial Services businesses, as (i) control continuously transfers to the customer as work progresses at a project location controlled by the customer and (ii) we have the right to bill the customer as costs are incurred. Within our Infrastructure Solutions Custom Power Solutions business, we often perform work inside our own facilities, where control does not continuously transfer to the customer as work progresses. In such cases, we evaluate whether the work performed creates an asset with alternative use to the Company and whether we have the right to bill the customer as costs are incurred. Such assessment involves an evaluation of contractual termination clauses. Where we are creating an asset with no alternative use and we have a contractual right to payment for work performed to date, we recognize revenue over time. If we do not have such a right, we recognize revenue upon completion of the contract, when control of the work transfers to the customer.

For arrangements where we recognize revenue over time, we use the percentage of completion method of accounting under which revenue recognized is measured principally by the costs incurred and accrued to date for each contract as a percentage of the estimated total cost for each contract at completion. Contract costs include all direct material, labor and indirect costs related to contract performance. Changes in job performance, job conditions, estimated contract costs and profitability and final contract settlements may result in revisions to costs and income, and the effects of these revisions are recognized in the period in which the revisions are determined. Provisions for estimated losses on uncompleted contracts are made in the period in which such losses are determined. This measurement and comparison process requires updates to the estimate of total costs to complete the contract, and these updates may include subjective assessments and judgments.

Certain divisions in the Residential and Infrastructure Solutions segments recognize revenue at the completion of the contract ("completed contract") under the right to invoice practical expedient because the duration of their contracts is short in nature. We recognize revenue on completed contracts when the project is complete and billable to the customer.

Variable Consideration

The transaction price for our contracts may include variable consideration, which includes changes to transaction price for approved and unapproved change orders, claims and incentives. Change orders, claims, and incentives are generally not distinct from the existing contract due to the significant integration service provided in the context of the contract and are accounted for as a modification of the existing contract and performance obligation. We estimate variable consideration for a performance obligation at the probability weighted value we expect to receive (or the most probable amount we expect to incur in the case of liquidated damages, if any), utilizing estimation methods that best predict the amount of consideration to which we will be entitled (or which will be incurred in the case of liquidated damages, if any). We include variable consideration in the estimated transaction price to the extent it is probable that a significant reversal of cumulative revenue recognized will not occur or when the uncertainty associated with the variable consideration is resolved. Our estimates of variable consideration and determination of whether to include estimated amounts in transaction price are based largely on an assessment of our anticipated performance and all information (historical, current and forecasted) that is reasonably available to us. The effect of variable consideration on the transaction price of a performance obligation is recognized as an adjustment to revenue on a cumulative catch-up basis. To the extent unapproved change orders and

claims reflected in transaction price (or accounted for as a reduction of the transaction price in the case of liquidated damages) are not resolved in our favor, or to the extent incentives reflected in transaction price are not earned, there could be reductions in, or reversals of, previously recognized revenue.

Disaggregation of Revenue

We disaggregate our revenue from contracts with customers by activity and contract type, as these categories reflect how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors. Our consolidated revenue for the three and six months ended March 31, 2024 and 2023 was derived from the following activities. Certain prior period amounts have been reclassified to conform with the current period presentation, where applicable. See details in the following tables:

	Three Months Ended March 31,				Six Months Ended March 31,
	2024		2023		2024		2023
Communications	$	193,503	$	141,120	$	364,251	$	288,365
Residential
Single-family	252,292		227,216		498,859		470,925
Multi-family and Other	87,080		78,896		156,369		153,265
Total Residential	339,372		306,112		655,228		624,190
Infrastructure Solutions
Industrial Services	12,076		11,562		23,174		22,516
Custom Power Solutions	63,713		41,054		115,503		79,384
Total Infrastructure Solutions	75,789		52,616		138,677		101,900
Commercial & Industrial	97,069		69,033		$	182,021	129,300
Total Revenue	$	705,733	$	568,881	$	1,340,177	$	1,143,755

	Three Months Ended March 31, 2024
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Fixed-price		$	141,144	$	339,372	$	73,543	$	82,972	$	637,031
Time-and-material			52,359		—		2,246		14,097		68,702
Total revenue		$	193,503	$	339,372	$	75,789	$	97,069	$	705,733
	Three Months Ended March 31, 2023
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Fixed-price		$	92,392	$	306,112	$	50,951	$	59,915	$	509,370
Time-and-material			48,728		—		1,665		9,118		59,511
Total revenue		$	141,120	$	306,112	$	52,616	$	69,033	$	568,881
	Six Months Ended March 31, 2024
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Fixed-price		$	266,367	$	655,228	$	134,423	$	156,882	$	1,212,900
Time-and-material			97,884		—		4,254		25,139		127,277
Total revenue		$	364,251	$	655,228	$	138,677	$	182,021	$	1,340,177
	Six Months Ended March 31, 2023
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Fixed-price		$	179,666	$	624,190	$	98,497	$	111,810	$	1,014,163
Time-and-material			108,699		—		3,403		17,490		129,592
Total revenue		$	288,365	$	624,190	$	101,900	$	129,300	$	1,143,755

Accounts Receivable and Allowance for Credit Losses

Accounts receivable include amounts that we have billed or have an unconditional right to bill our customers. As of March 31, 2024, Accounts receivable included $7,385 of unbilled receivables for which we have an unconditional right to bill.

Contract Assets and Liabilities

Project contracts typically provide for a schedule of billings on percentage of completion of specific tasks inherent in the fulfillment of our performance obligation(s). The schedules for such billings usually do not precisely match the schedule on which costs are incurred. As a result, contract revenue recognized in the statement of operations can and usually does differ from amounts that can be billed to the customer at any point during the contract. Amounts by which cumulative contract revenue recognized on a contract as of a given date exceeds cumulative billings and unbilled receivables to the customer under the contract are reflected as a current asset in our Condensed Consolidated Balance Sheets under the caption “Costs and estimated earnings in excess of billings”. Amounts by which cumulative billings to the customer under a contract as of a given date exceed cumulative contract revenue recognized are reflected as a current liability in our Condensed Consolidated Balance Sheets under the caption “Billings in excess of costs and estimated earnings”.

During the six months ended March 31, 2024 and 2023, we recognized revenue of $92,970 and $52,350 related to our contract liabilities at October 1, 2023 and 2022, respectively.

Remaining Performance Obligations

Remaining performance obligations represent the unrecognized revenue value of our contract commitments. New awards represent the total expected revenue value of new contract commitments undertaken during a given period, as well as additions to the scope of existing contract commitments. Our new performance obligations vary significantly each reporting period based on the timing of our major new contract commitments. At March 31, 2024, we had remaining performance obligations of $1,065,444. The Company expects to recognize revenue on approximately $875,040 of the remaining performance obligations over the next 12 months, with the remainder recognized thereafter.

For the three and six months ended March 31, 2024, net revenue recognized from our performance obligations satisfied in previous periods was not material.

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Debt

6 Months Ended

Mar. 31, 2024

Debt Disclosure [Abstract]

Debt Disclosure [Text Block]

4. DEBT

We are a party to the Third Amended and Restated Credit and Security Agreement (the “Amended Credit Agreement”), which provides for a maximum borrowing amount of $150,000 under our revolving credit facility. The Amended Credit Agreement, which matures on September 30, 2026, contains customary affirmative, negative and financial covenants as disclosed in Item 7 of our Annual Report on Form 10-K for the fiscal year ended September 30, 2023. As of March 31, 2024, the Company was in compliance with the financial covenants under the Amended Credit Agreement.

At March 31, 2024 and September 30, 2023, we had no outstanding borrowings under our revolving credit facility. At March 31, 2024, we had $5,606 in outstanding letters of credit and total availability of $143,501 under our revolving credit facility without triggering the financial covenants under the Amended Credit Agreement.

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Per Share Information

6 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

5. PER SHARE INFORMATION

The following tables reconcile the components of basic and diluted earnings per share for the three and six months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Numerator:
Net income attributable to IES Holdings, Inc.	$	52,909	$	21,551
Increase in noncontrolling interest		(5,941)		(2,771)
Net income attributable to common stockholders of IES Holdings, Inc.	$	46,968	$	18,780
Denominator:
Weighted average common shares outstanding — basic		20,227,342		20,170,824
Effect of dilutive stock options and non-vested securities		252,413		216,972
Weighted average common and common equivalent shares outstanding — diluted		20,479,755		20,387,796
Earnings per share attributable to common stockholders of IES Holdings, Inc.:
Basic	$	2.32	$	0.93
Diluted	$	2.29	$	0.92
	Six Months Ended March 31,
	2024		2023
Numerator:
Net income attributable to IES Holdings, Inc.	$	93,865	$	47,953
Increase in noncontrolling interest		(8,723)		(5,826)
Net income attributable to restricted stockholders of IES Holdings, Inc.		—		(10)
Net income attributable to common stockholders of IES Holdings, Inc.	$	85,142	$	42,117
Denominator:
Weighted average common shares outstanding — basic		20,213,421		20,206,814
Effect of dilutive stock options and non-vested securities		236,270		207,678
Weighted average common and common equivalent shares outstanding — diluted		20,449,691		20,414,492
Earnings per share attributable to IES Holdings, Inc.:
Basic	$	4.21	$	2.08
Diluted	$	4.16	$	2.06

For the three and six months ended March 31, 2024 and 2023, the average price of our common shares exceeded the exercise price of all of our outstanding stock options. As a result, all of our outstanding stock options were included in the computation of diluted earnings per share. For the six months ended March 31, 2024 and 2023, the computation of diluted earnings per share excluded 21,584 and 22,344 unvested Employee PSUs (as defined below), respectively, as the inclusion of such instruments would have been anti-dilutive. All unvested Employee PSUs were included in the computation of diluted earnings per share for the three months ended March 31, 2024 and 2023.

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Operating Segments

6 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Segment Reporting Disclosure [Text Block]

6. OPERATING SEGMENTS

We manage and measure performance of our business in four distinct operating segments: Communications, Residential, Infrastructure Solutions, and Commercial & Industrial. These segments are reflective of how the Company’s Chief Operating Decision Maker (“CODM”) reviews operating results for the purpose of allocating resources and assessing performance. The Company’s CODM is its Chief Executive Officer.

Transactions between segments, if any, are eliminated in consolidation. Our corporate organization provides general and administrative services, as well as support services, to each of our four operating segments. Management allocates certain shared costs among segments for selling, general and administrative expenses and depreciation expense.

Segment information for the three and six months ended March 31, 2024 and 2023 is as follows:

		Three Months Ended March 31, 2024
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Corporate		Total
Revenues		$	193,503	$	339,372	$	75,789	$	97,069	$	—	$	705,733
Cost of services		154,568		250,702		52,044		76,806		—		534,120
Gross profit		38,935		88,670		23,745		20,263		—		171,613
Selling, general and administrative		16,988		55,258		7,627		8,707		6,692		95,272
Contingent consideration		—		—		—		—		—		—
Gain on sale of assets		(16)		(1,275)		—		(68)		(14)		(1,373)
Operating income (loss)		$	21,963	$	34,687	$	16,118	$	11,624	$	(6,678)	$	77,714
Other data:
	Depreciation and amortization expense	$	866	$	5,012	$	1,229	$	485	$	229	$	7,821
	Capital expenditures	$	936	$	3,424	$	884	$	1,397	$	203	$	6,844
	Total assets	$	230,386	$	396,760	$	200,476	$	98,845	$	174,697	$	1,101,164

		Three Months Ended March 31, 2023
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Corporate		Total
Revenues		$	141,120	$	306,112	$	52,616	$	69,033	$	—	$	568,881
Cost of services		115,957		251,281		38,421		62,296		—		467,955
Gross profit		25,163		54,831		14,195		6,737		—		100,926
Selling, general and administrative		13,386		37,999		5,990		6,400		5,574		69,349
Contingent consideration		—		69		—		—		—		69
Gain on sale of assets		(3)		—		—		(99)		—		(102)
Operating income (loss)		$	11,780	$	16,763	$	8,205	$	436	$	(5,574)	$	31,610
Other data:
	Depreciation and amortization expense	$	502	$	4,557	$	1,326	$	412	$	67	$	6,864
	Capital expenditures	$	480	$	2,379	$	560	$	546	$	—	$	3,965
	Total assets	$	188,937	$	389,946	$	173,621	$	87,721	$	48,863	$	889,088

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Stockholders' Equity

6 Months Ended

Mar. 31, 2024

Equity [Abstract]

Shareholders' Equity and Share-based Payments [Text Block]

7. STOCKHOLDERS’ EQUITY

Equity Incentive Plan

The Company’s 2006 Equity Incentive Plan, as amended and restated (the “Equity Incentive Plan”), provides for grants of stock options as well as grants of stock, including restricted stock. Approximately 3.0 million shares of common stock are authorized for issuance under the Equity Incentive Plan, of which approximately 570,655 shares were available for issuance at March 31, 2024.

Stock Repurchase Program

In December 2022, our Board authorized a stock repurchase program for the purchase from time to time of up to $40,000 of the Company’s common stock, replacing the Company's previous repurchase program. Share purchases are made for cash in open market transactions at prevailing market prices or in privately negotiated transactions or otherwise. The timing and amount of purchases under the program are determined based upon prevailing market conditions, our liquidity requirements, contractual restrictions and other factors. All or part of the repurchases may be implemented under a Rule 10b5-1 trading plan, which allows repurchases under predetermined terms at times when the Company might otherwise be prevented from purchasing under insider trading laws or because of self-imposed blackout periods. The program does not require the Company to purchase any specific number of shares and may be modified, suspended, reinstated, or terminated at any time at the Company’s discretion and without notice. We repurchased 4,048 and 223,779 shares, respectively, of our common stock during the three and six months ended March 31, 2023 in open market transactions at an average price of $34.97 and $31.05 per share, respectively. We made no repurchases of common stock in open market transactions during the three and six months ended March 31, 2024.

Treasury Stock

During the six months ended March 31, 2024, we issued 82,180 shares of common stock from treasury stock to employees and repurchased 33,940 shares of common stock from our employees to satisfy statutory tax withholding requirements upon the vesting of certain performance phantom stock units under the Equity Incentive Plan. During the six months ended March 31, 2024, we issued 1,000 unrestricted shares to satisfy the exercise of certain outstanding option awards under the Equity Incentive Plan.

During the six months ended March 31, 2023, we issued 71,013 shares of common stock from treasury stock to employees and repurchased 19,347 shares of common stock from our employees to satisfy statutory tax withholding requirements upon the vesting of certain performance phantom stock units under the Equity Incentive Plan. In addition, 266 restricted shares were forfeited and returned to treasury stock. During the six months ended March 31, 2023, we issued 2,000 unrestricted shares to satisfy the exercise of certain outstanding option awards under the Equity Incentive Plan.

Director Phantom Stock Units

Director phantom stock units (“Director PSUs”) are granted to the members of the Board of Directors as part of their overall compensation. The Director PSUs are contractual rights to receive one share of the Company's common stock and are paid via unrestricted stock grants to each director upon their departure from the Board of Directors, or upon a change in control. We record compensation expense for the full value of the grant on the date of grant.

Employee Phantom Stock Units

An employee phantom stock unit (an “Employee PSU”) is a contractual right to receive one share of the Company’s common stock. Depending on the terms of each grant, Employee PSUs may vest upon the achievement of certain specified performance objectives and continued performance of services, or may vest based on continued performance of services through the vesting date.

As of March 31, 2024, the Company had outstanding Employee PSUs, which, subject to the achievement of certain performance metrics, could result in the issuance of 323,973 shares of common stock. During the six months ended March 31, 2024, we granted 85,434 Employee PSUs, 5,094 were forfeited, and 82,180 vested.

A summary of the compensation expense related to our stock awards recognized during the three and six months ended March 31, 2024 and 2023 is provided in the table below:

	Three Months Ended March 31,				Six Months Ended March 31,
	2024		2023		2024		2023
Restricted stock awards	$	—	$	—	$	—	$	25
Director PSUs	$	134	$	94	$	230	$	190
Employee PSUs	$	1,380	$	958	$	2,695	$	1,740

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Fair Value Measurements

6 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Fair Value Disclosures [Text Block]

. FAIR VALUE MEASUREMENTS

Fair Value Measurement Accounting

Fair value is considered the price to sell an asset, or transfer a liability, between market participants on the measurement date. Fair value measurements assume that (1) the asset or liability is exchanged in an orderly manner, (2) the exchange is in the principal market for that asset or liability, and (3) the market participants are independent, knowledgeable, and able and willing to transact an exchange. Fair value accounting and reporting establishes a framework for measuring fair value by creating a hierarchy for observable independent market inputs and unobservable market assumptions and expands disclosures about fair value measurements. Judgment is required to interpret the market data used to develop fair value estimates. As such, the estimates presented herein are not necessarily indicative of the amounts that could be realized in a current exchange. The use of different market assumptions and/or estimation methods could have a material effect on the estimated fair value.

At March 31, 2024 and September 30, 2023, financial assets and liabilities measured at fair value on a recurring basis were limited to investments in equity securities and debt securities classified as trading securities, our Executive Deferred Compensation Plan, under which certain employees are permitted to defer a portion of their base salary and/or bonus for a Plan Year (as defined in the plan), and contingent consideration liabilities related to certain of our acquisitions.

Financial assets (liabilities) measured at fair value on a recurring basis as of March 31, 2024 and September 30, 2023, are summarized in the following tables by the type of inputs applicable to the fair value measurements:

	March 31, 2024
			Total Fair Value		Quoted Prices (Level 1)		Significant Unobservable Inputs (Level 3)
Equity securities		$	13,048	$	13,048	$	—
Debt securities classified as trading securities			4,444		4,444		—
Executive savings plan assets			925		925		—
Executive savings plan liabilities			(793)		(793)		—
Total		$	17,624	$	17,624	$	—

	September 30, 2023
			Total Fair Value		Quoted Prices (Level 1)		Significant Unobservable Inputs (Level 3)
Executive savings plan assets		$	783	$	783	$	—
Executive savings plan liabilities			(657)		(657)		—
Contingent consideration liability			(4,465)		—		(4,465)
Total		$	(4,339)	$	126	$	(4,465)

Investments in equity securities and debt securities, all of which are classified as trading securities and mature after one year and before five years at March 31, 2024, were included in “Prepaid expenses and other current assets” in our Condensed Consolidated Balance Sheets. Gains and losses to measure our investments in equity and debt securities at fair value were included in Other income, net in our Condensed Consolidated Statements of Comprehensive Income. Our unrealized net gains (losses), which are calculated as total net gains (losses) recognized during the period less net gains (losses) recognized on securities sold during the period, were as follows:

	Three Months Ended March 31,				Six Months Ended March 31,
	2024		2023		2024		2023
Unrealized loss on equity securities	$	(1,852)	$	—	$	(1,852)	$	—
Unrealized gain (loss) on debt securities	(57)		—		62		—
Total unrealized loss on trading securities	$	(1,909)	$	—	$	(1,790)	$	—

In fiscal year 2021, we entered into a contingent consideration arrangement related to the acquisition of Bayonet. The table below presents the change in fair value of this obligation, which used significant unobservable inputs (Level 3). This obligation was settled during the six months ended March 31, 2024, and we did not have any other assets or liabilities measured using significant unobservable inputs at March 31, 2024.

	Contingent Consideration Agreements
Fair value at September 30, 2023	$	(4,465)
Net adjustments to fair value	(35)
Settlements	4,500
Fair value at March 31, 2024	$	—

Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]

Investments in equity securities and debt securities, all of which are classified as trading securities and mature after one year and before five years at March 31, 2024, were included in “Prepaid expenses and other current assets” in our Condensed Consolidated Balance Sheets. Gains and losses to measure our investments in equity and debt securities at fair value were included in Other income, net in our Condensed Consolidated Statements of Comprehensive Income. Our unrealized net gains (losses), which are calculated as total net gains (losses) recognized during the period less net gains (losses) recognized on securities sold during the period, were as follows:

	Three Months Ended March 31,				Six Months Ended March 31,
	2024		2023		2024		2023
Unrealized loss on equity securities	$	(1,852)	$	—	$	(1,852)	$	—
Unrealized gain (loss) on debt securities	(57)		—		62		—
Total unrealized loss on trading securities	$	(1,909)	$	—	$	(1,790)	$	—

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Inventory

6 Months Ended

Mar. 31, 2024

Inventory Disclosure [Abstract]

Inventory Disclosure [Text Block]

9. INVENTORY

Inventories consist of the following components:

	March 31,		September 30,
	2024		2023
Raw materials	$	14,635	$	14,334
Work in process		10,296		12,939
Finished goods		4,933		3,399
Parts and supplies		74,748		64,983
Total inventories	$	104,612	$	95,655

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Goodwill and Intangible Assets

6 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets Disclosure [Text Block]

10. GOODWILL AND INTANGIBLE ASSETS

Goodwill

The following summarizes the carrying value of goodwill by segment at March 31, 2024, which did not change from September 30, 2023:

	Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Goodwill at March 31, 2024	$	2,816	$	51,370	$	38,209	$	—	$	92,395

Intangible Assets

Intangible assets consist of the following:

	Estimated Useful Lives (in Years)			March 31, 2024
					Gross Carrying Amount		Accumulated Amortization		Net
Trademarks/trade names	5	-	20		$	13,071	$	(6,174)		$	6,897
Technical library	20				400		(211)			189
Customer relationships	6	-	15		91,426		(48,437)			42,989
Non-competition arrangements	5				40		(40)			—
Backlog and construction contracts	1				3,268		(3,268)			—
Total intangible assets					$	108,205	$	(58,130)		$	50,075

	Estimated Useful Lives (in Years)			September 30, 2023
					Gross Carrying Amount		Accumulated Amortization		Net
Trademarks/trade names	5	-	20		$	14,621	$	(6,973)		$	7,648
Technical library	20				400		(201)			199
Customer relationships	6	-	15		91,426		(43,065)			48,361
Non-competition arrangements	5				40		(40)			—
Backlog and construction contracts	1				4,958		(4,958)			—
Total intangible assets					$	111,445	$	(55,237)		$	56,208

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Commitments and Contingencies

6 Months Ended

Mar. 31, 2024

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies Disclosure [Text Block]

11. COMMITMENTS AND CONTINGENCIES

Legal Matters

From time to time, we are a party to various claims, lawsuits and other legal proceedings that arise in the ordinary course of business. We maintain various insurance coverages to minimize financial risk associated with these proceedings. None of these proceedings, separately or in the aggregate, are expected to have a material adverse effect on our financial position, results of operations or cash flows. With respect to all such proceedings, we record reserves when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. We expense routine legal costs related to these proceedings as they are incurred.

In the course of performing work as a subcontractor, from time to time we may be involved in projects which are the subject of contractual disputes between the general contractor and project owner, or between us and the general contractor. In such cases, payment of amounts owed to us by the general contractor may be delayed as contractual disputes are resolved through mediation, arbitration, or litigation. Such disputes may cause us to incur legal fees and other expenses to enforce our contractual rights, and we may not prevail in recovering all amounts to which we believe we are contractually entitled.

Risk Management

We retain the risk for workers’ compensation, employer’s liability, automobile liability, construction defects, general liability and employee group health claims, as well as pollution coverage, resulting from uninsured deductibles per accident or occurrence which are generally subject to annual aggregate limits. Our general liability program provides coverage for bodily injury and property damage. In many cases, we insure third parties, including general contractors, as additional insured parties under our insurance policies. Losses are accrued based upon our known claims incurred and an estimate of claims incurred but not reported. As a result, many of our claims are effectively self-insured. Many claims against our insurance are in the form of litigation. At March 31, 2024 and September 30, 2023, we had $10,143 and $7,726, respectively, accrued for self-insurance liabilities. Because the reserves are based on judgment and estimates and involve variables that are inherently uncertain, such as the outcome of litigation and an assessment of insurance coverage, there can be no assurance that the ultimate liability will not be higher or lower than such estimates or that the timing of payments will not create liquidity issues for the Company.

Some of the underwriters of our casualty insurance program require us to post letters of credit as collateral. This is common in the insurance industry. To date, we have not had a situation where an underwriter has had reasonable cause to effect payment under a letter of credit. At March 31, 2024 and September 30, 2023, $5,606 and $4,166, respectively, of our outstanding letters of credit was utilized to collateralize our insurance program.

Surety

As of March 31, 2024, the estimated cost to complete our bonded projects was approximately $138,588. We evaluate our bonding requirements on a regular basis, including the terms offered by our sureties. We believe the bonding capacity presently provided by our current sureties is adequate for our current operations and will be adequate for our operations for the foreseeable future.

Other Commitments and Contingencies

Some of our customers and vendors require us to post letters of credit, or provide intercompany guarantees, as a means of guaranteeing performance under our contracts and ensuring payment by us to subcontractors and vendors. If our customer has reasonable cause to effect payment under a letter of credit, we would be required to reimburse our creditor for the letter of credit.

From time to time, we may enter into firm purchase commitments for materials, such as copper or aluminum wire, which we expect to use in the ordinary course of business. These commitments are typically for terms of less than one year and require us to buy minimum quantities of materials at specific intervals at a fixed price over the term. As of March 31, 2024, we did not have any such firm commitments to purchase materials outstanding.

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Leases

6 Months Ended

Mar. 31, 2024

Leases [Abstract]

Leases

12. LEASES

We enter into various contractual arrangements for the right to use facilities, vehicles and equipment. The lease terms generally range from two to ten years for facilities and three to five years for vehicles and equipment. Our lease terms may include the exercise of renewal or termination options when it is reasonably certain these options will be exercised. Our lease agreements do not contain any material residual value guarantees or restrictive covenants.

Current operating and finance lease liabilities of $19,619 and $4,657, respectively, as of March 31, 2024, and $19,496 and $4,301, respectively, as of September 30, 2023, were included in “Accounts payable and accrued expenses” in the Condensed Consolidated Balance Sheets. Non-current finance lease liabilities and finance lease right-of-use assets were included in the “Other non-current liabilities” and “Other non-current assets”, respectively, in the Condensed Consolidated Balance Sheets.

The maturities of our lease liabilities as of March 31, 2024 are as follows:

	Operating Leases		Finance Leases		Total
Remainder of 2024	$	10,701	$	2,438	$	13,139
2025	18,274		4,653		22,927
2026	14,566		3,786		18,352
2027	10,050		1,984		12,034
2028	5,659		241		5,900
Thereafter	5,473		8		5,481
Total undiscounted lease payments	$	64,723	$	13,110	$	77,833
Less: imputed interest	6,929		1,212		8,141
Present value of lease liabilities	$	57,794	$	11,898	$	69,692

The total future undiscounted cash flows related to lease agreements committed to but not yet commenced as of March 31, 2024 is $3,598.

Lease cost recognized in our Condensed Consolidated Statements of Comprehensive Income is summarized as follows:

	Three Months Ended						Six Months Ended
	March 31, 2024		March 31, 2023				March 31, 2024		March 31, 2023
Operating lease cost	$	5,718	$	4,407	$	0	$	11,414	$	9,333
Finance lease cost
Amortization of lease assets	1,126		1,011				2,134		1,686
Interest on lease liabilities	215		216				399		366
Finance lease cost	1,341		1,227				2,533		2,052
Short-term lease cost	389		513				810		1,102
Variable lease cost	$	1,083	$	661			$	2,081	$	1,074
Total lease cost	$	8,531	$	6,808			$	16,838	$	13,561

Other information about lease amounts recognized in our Condensed Consolidated Financial Statements is summarized as follows:

	Three Months Ended				Six Months Ended
	March 31, 2024		March 31, 2023		March 31, 2024		March 31, 2023
Operating cash flows used for operating leases	$	6,026	$	5,867	$	12,064	$	11,818
Operating cash flows used for finance leases	215		216		399		366
Right-of-use assets obtained in exchange for new operating lease liabilities	1,116		2,872		7,575		9,191
Right-of-use assets obtained in exchange for new finance lease liabilities	644		1,882		984		4,826

	March 31, 2024		September 30, 2023
Weighted-average remaining lease term - operating leases	4.1 years		4.5 years
Weighted-average remaining lease term - finance leases	3.0 years		3.4 years
Weighted-average discount rate - operating leases	5.3	%	5.1	%
Weighted-average discount rate - finance leases	6.3	%	6.0	%

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Discontinued Operations and Disposal Groups

6 Months Ended

Mar. 31, 2024

Discontinued Operations and Disposal Groups [Abstract]

Business Combination Disclosure [Text Block]

13. BUSINESS COMBINATIONS AND DIVESTITURES

We completed no acquisitions during the six months ended March 31, 2024 or during the year ended September 30, 2023.

On October 7, 2022, we sold 100% of the membership interests of STR Mechanical, LLC and its subsidiary Technical Services II, LLC (collectively, “STR”). As a result, we recognized a pre-tax gain of $13,045, which was included in “Gain on sale of assets” within our Condensed Consolidated Statements of Comprehensive Income for the six months ended March 31, 2023.

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Subsequent Events

6 Months Ended

Mar. 31, 2024

Subsequent Events [Abstract]

Subsequent Events

14. SUBSEQUENT EVENTS

Acquisition of Greiner Industries

On April 1, 2024, the Company acquired all of the equity interests of Greiner Industries, Inc., a Mount Joy, Pennsylvania-based structural steel fabrication and services company, to support the growth of our Infrastructure Solutions segment for a cash purchase price of $69,804, subject to post-closing adjustments to be determined based on the valuation of certain assets and liabilities, plus a maximum of $5,000 contingent consideration, payable upon achievement of certain future earnings targets. This acquired business will operate as a subsidiary in our Infrastructure Solutions segment. The fair value of the total consideration for this transaction remains subject to post-closing adjustments as of the date of this report.

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Insider Trading Arrangements - shares

3 Months Ended

Mar. 31, 2024

Mar. 06, 2024

Trading Arrangements, by Individual

Material Terms of Trading Arrangement

On March 6, 2024, Jeffrey L. Gendell, Chairman and Chief Executive Officer of the Company, adopted a Rule 10b5-1 trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act. Sales under Mr. Gendell’s plan, which provides for the potential sale of up to an aggregate of 200,000 shares of the Company’s common stock, may commence as soon as 90 calendar days from the execution date of the trading plan and shall end, subject to certain conditions, on the earlier of (a) March 7, 2025 and (b) the date that all shares subject to the plan have been sold.

Name

Jeffrey L. Gendell

Title

Chairman and Chief Executive Officer

Rule 10b5-1 Arrangement Adopted

false

Non-Rule 10b5-1 Arrangement Adopted

false

Adoption Date

March 6, 2024

Rule 10b5-1 Arrangement Terminated

false

Non-Rule 10b5-1 Arrangement Terminated

false

Aggregate Available

200,000

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Accounting Policies (Policies)

6 Months Ended

Mar. 31, 2024

Accounting Policies [Abstract]

Use of Estimates, Policy

Use of Estimates

The preparation of financial statements in conformity with GAAP requires the use of estimates and assumptions by management in determining the reported amounts of assets and liabilities, disclosures of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Estimates are primarily used in our revenue recognition of construction in progress, fair value assumptions in accounting for business combinations, stock-based compensation, reserves for legal matters, and realizability of deferred tax assets and unrecognized tax benefits.

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Revenue Recognition (Tables)

6 Months Ended

Mar. 31, 2024

Revenue Recognition and Deferred Revenue [Abstract]

Disaggregation of Revenue [Table Text Block]

Our consolidated revenue for the three and six months ended March 31, 2024 and 2023 was derived from the following activities. Certain prior period amounts have been reclassified to conform with the current period presentation, where applicable. See details in the following tables:

	Three Months Ended March 31,				Six Months Ended March 31,
	2024		2023		2024		2023
Communications	$	193,503	$	141,120	$	364,251	$	288,365
Residential
Single-family	252,292		227,216		498,859		470,925
Multi-family and Other	87,080		78,896		156,369		153,265
Total Residential	339,372		306,112		655,228		624,190
Infrastructure Solutions
Industrial Services	12,076		11,562		23,174		22,516
Custom Power Solutions	63,713		41,054		115,503		79,384
Total Infrastructure Solutions	75,789		52,616		138,677		101,900
Commercial & Industrial	97,069		69,033		$	182,021	129,300
Total Revenue	$	705,733	$	568,881	$	1,340,177	$	1,143,755

	Three Months Ended March 31, 2024
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Fixed-price		$	141,144	$	339,372	$	73,543	$	82,972	$	637,031
Time-and-material			52,359		—		2,246		14,097		68,702
Total revenue		$	193,503	$	339,372	$	75,789	$	97,069	$	705,733
	Three Months Ended March 31, 2023
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Fixed-price		$	92,392	$	306,112	$	50,951	$	59,915	$	509,370
Time-and-material			48,728		—		1,665		9,118		59,511
Total revenue		$	141,120	$	306,112	$	52,616	$	69,033	$	568,881
	Six Months Ended March 31, 2024
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Fixed-price		$	266,367	$	655,228	$	134,423	$	156,882	$	1,212,900
Time-and-material			97,884		—		4,254		25,139		127,277
Total revenue		$	364,251	$	655,228	$	138,677	$	182,021	$	1,340,177
	Six Months Ended March 31, 2023
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Fixed-price		$	179,666	$	624,190	$	98,497	$	111,810	$	1,014,163
Time-and-material			108,699		—		3,403		17,490		129,592
Total revenue		$	288,365	$	624,190	$	101,900	$	129,300	$	1,143,755

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Per Share Information (Tables)

6 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following tables reconcile the components of basic and diluted earnings per share for the three and six months ended March 31, 2024 and 2023:

	Three Months Ended March 31,
	2024		2023
Numerator:
Net income attributable to IES Holdings, Inc.	$	52,909	$	21,551
Increase in noncontrolling interest		(5,941)		(2,771)
Net income attributable to common stockholders of IES Holdings, Inc.	$	46,968	$	18,780
Denominator:
Weighted average common shares outstanding — basic		20,227,342		20,170,824
Effect of dilutive stock options and non-vested securities		252,413		216,972
Weighted average common and common equivalent shares outstanding — diluted		20,479,755		20,387,796
Earnings per share attributable to common stockholders of IES Holdings, Inc.:
Basic	$	2.32	$	0.93
Diluted	$	2.29	$	0.92
	Six Months Ended March 31,
	2024		2023
Numerator:
Net income attributable to IES Holdings, Inc.	$	93,865	$	47,953
Increase in noncontrolling interest		(8,723)		(5,826)
Net income attributable to restricted stockholders of IES Holdings, Inc.		—		(10)
Net income attributable to common stockholders of IES Holdings, Inc.	$	85,142	$	42,117
Denominator:
Weighted average common shares outstanding — basic		20,213,421		20,206,814
Effect of dilutive stock options and non-vested securities		236,270		207,678
Weighted average common and common equivalent shares outstanding — diluted		20,449,691		20,414,492
Earnings per share attributable to IES Holdings, Inc.:
Basic	$	4.21	$	2.08
Diluted	$	4.16	$	2.06

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Operating Segments (Tables)

6 Months Ended

Mar. 31, 2024

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Segment information for the three and six months ended March 31, 2024 and 2023 is as follows:

		Three Months Ended March 31, 2024
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Corporate		Total
Revenues		$	193,503	$	339,372	$	75,789	$	97,069	$	—	$	705,733
Cost of services		154,568		250,702		52,044		76,806		—		534,120
Gross profit		38,935		88,670		23,745		20,263		—		171,613
Selling, general and administrative		16,988		55,258		7,627		8,707		6,692		95,272
Contingent consideration		—		—		—		—		—		—
Gain on sale of assets		(16)		(1,275)		—		(68)		(14)		(1,373)
Operating income (loss)		$	21,963	$	34,687	$	16,118	$	11,624	$	(6,678)	$	77,714
Other data:
	Depreciation and amortization expense	$	866	$	5,012	$	1,229	$	485	$	229	$	7,821
	Capital expenditures	$	936	$	3,424	$	884	$	1,397	$	203	$	6,844
	Total assets	$	230,386	$	396,760	$	200,476	$	98,845	$	174,697	$	1,101,164

		Three Months Ended March 31, 2023
		Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Corporate		Total
Revenues		$	141,120	$	306,112	$	52,616	$	69,033	$	—	$	568,881
Cost of services		115,957		251,281		38,421		62,296		—		467,955
Gross profit		25,163		54,831		14,195		6,737		—		100,926
Selling, general and administrative		13,386		37,999		5,990		6,400		5,574		69,349
Contingent consideration		—		69		—		—		—		69
Gain on sale of assets		(3)		—		—		(99)		—		(102)
Operating income (loss)		$	11,780	$	16,763	$	8,205	$	436	$	(5,574)	$	31,610
Other data:
	Depreciation and amortization expense	$	502	$	4,557	$	1,326	$	412	$	67	$	6,864
	Capital expenditures	$	480	$	2,379	$	560	$	546	$	—	$	3,965
	Total assets	$	188,937	$	389,946	$	173,621	$	87,721	$	48,863	$	889,088

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Stockholders' Equity (Tables)

6 Months Ended

Mar. 31, 2024

Equity [Abstract]

Share-Based Payment Arrangement, Cost by Plan

A summary of the compensation expense related to our stock awards recognized during the three and six months ended March 31, 2024 and 2023 is provided in the table below:

	Three Months Ended March 31,				Six Months Ended March 31,
	2024		2023		2024		2023
Restricted stock awards	$	—	$	—	$	—	$	25
Director PSUs	$	134	$	94	$	230	$	190
Employee PSUs	$	1,380	$	958	$	2,695	$	1,740

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Fair Value Measurements (Tables)

6 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

Financial assets (liabilities) measured at fair value on a recurring basis as of March 31, 2024 and September 30, 2023, are summarized in the following tables by the type of inputs applicable to the fair value measurements:

	March 31, 2024
			Total Fair Value		Quoted Prices (Level 1)		Significant Unobservable Inputs (Level 3)
Equity securities		$	13,048	$	13,048	$	—
Debt securities classified as trading securities			4,444		4,444		—
Executive savings plan assets			925		925		—
Executive savings plan liabilities			(793)		(793)		—
Total		$	17,624	$	17,624	$	—

	September 30, 2023
			Total Fair Value		Quoted Prices (Level 1)		Significant Unobservable Inputs (Level 3)
Executive savings plan assets		$	783	$	783	$	—
Executive savings plan liabilities			(657)		(657)		—
Contingent consideration liability			(4,465)		—		(4,465)
Total		$	(4,339)	$	126	$	(4,465)

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation

The table below presents the change in fair value of this obligation, which used significant unobservable inputs (Level 3). This obligation was settled during the six months ended March 31, 2024, and we did not have any other assets or liabilities measured using significant unobservable inputs at March 31, 2024.

	Contingent Consideration Agreements
Fair value at September 30, 2023	$	(4,465)
Net adjustments to fair value	(35)
Settlements	4,500
Fair value at March 31, 2024	$	—

Unrealized Gain (Loss) on Investments

Our unrealized net gains (losses), which are calculated as total net gains (losses) recognized during the period less net gains (losses) recognized on securities sold during the period, were as follows:

	Three Months Ended March 31,				Six Months Ended March 31,
	2024		2023		2024		2023
Unrealized loss on equity securities	$	(1,852)	$	—	$	(1,852)	$	—
Unrealized gain (loss) on debt securities	(57)		—		62		—
Total unrealized loss on trading securities	$	(1,909)	$	—	$	(1,790)	$	—

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Inventory (Tables)

6 Months Ended

Mar. 31, 2024

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consist of the following components:

	March 31,		September 30,
	2024		2023
Raw materials	$	14,635	$	14,334
Work in process		10,296		12,939
Finished goods		4,933		3,399
Parts and supplies		74,748		64,983
Total inventories	$	104,612	$	95,655

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Goodwill and Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The following summarizes the carrying value of goodwill by segment at March 31, 2024, which did not change from September 30, 2023:

	Communications		Residential		Infrastructure Solutions		Commercial & Industrial		Total
Goodwill at March 31, 2024	$	2,816	$	51,370	$	38,209	$	—	$	92,395

Schedule of Finite-Lived Intangible Assets [Table Text Block]

Intangible assets consist of the following:

	Estimated Useful Lives (in Years)			March 31, 2024
					Gross Carrying Amount		Accumulated Amortization		Net
Trademarks/trade names	5	-	20		$	13,071	$	(6,174)		$	6,897
Technical library	20				400		(211)			189
Customer relationships	6	-	15		91,426		(48,437)			42,989
Non-competition arrangements	5				40		(40)			—
Backlog and construction contracts	1				3,268		(3,268)			—
Total intangible assets					$	108,205	$	(58,130)		$	50,075

	Estimated Useful Lives (in Years)			September 30, 2023
					Gross Carrying Amount		Accumulated Amortization		Net
Trademarks/trade names	5	-	20		$	14,621	$	(6,973)		$	7,648
Technical library	20				400		(201)			199
Customer relationships	6	-	15		91,426		(43,065)			48,361
Non-competition arrangements	5				40		(40)			—
Backlog and construction contracts	1				4,958		(4,958)			—
Total intangible assets					$	111,445	$	(55,237)		$	56,208

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Leases (Tables)

6 Months Ended

Mar. 31, 2024

Leases [Abstract]

Lessee, Operating Lease, Liability, Maturity

The maturities of our lease liabilities as of March 31, 2024 are as follows:

	Operating Leases		Finance Leases		Total
Remainder of 2024	$	10,701	$	2,438	$	13,139
2025	18,274		4,653		22,927
2026	14,566		3,786		18,352
2027	10,050		1,984		12,034
2028	5,659		241		5,900
Thereafter	5,473		8		5,481
Total undiscounted lease payments	$	64,723	$	13,110	$	77,833
Less: imputed interest	6,929		1,212		8,141
Present value of lease liabilities	$	57,794	$	11,898	$	69,692

Lease, Cost

Lease cost recognized in our Condensed Consolidated Statements of Comprehensive Income is summarized as follows:

	Three Months Ended						Six Months Ended
	March 31, 2024		March 31, 2023				March 31, 2024		March 31, 2023
Operating lease cost	$	5,718	$	4,407	$	0	$	11,414	$	9,333
Finance lease cost
Amortization of lease assets	1,126		1,011				2,134		1,686
Interest on lease liabilities	215		216				399		366
Finance lease cost	1,341		1,227				2,533		2,052
Short-term lease cost	389		513				810		1,102
Variable lease cost	$	1,083	$	661			$	2,081	$	1,074
Total lease cost	$	8,531	$	6,808			$	16,838	$	13,561

Schedule of Cash Flow, Supplemental Disclosures

Other information about lease amounts recognized in our Condensed Consolidated Financial Statements is summarized as follows:

	Three Months Ended				Six Months Ended
	March 31, 2024		March 31, 2023		March 31, 2024		March 31, 2023
Operating cash flows used for operating leases	$	6,026	$	5,867	$	12,064	$	11,818
Operating cash flows used for finance leases	215		216		399		366
Right-of-use assets obtained in exchange for new operating lease liabilities	1,116		2,872		7,575		9,191
Right-of-use assets obtained in exchange for new finance lease liabilities	644		1,882		984		4,826

	March 31, 2024		September 30, 2023
Weighted-average remaining lease term - operating leases	4.1 years		4.5 years
Weighted-average remaining lease term - finance leases	3.0 years		3.4 years
Weighted-average discount rate - operating leases	5.3	%	5.1	%
Weighted-average discount rate - finance leases	6.3	%	6.0	%

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Business (Details)
$ in Thousands

6 Months Ended

Mar. 31, 2024

USD ($)

Accounting Policies [Abstract]

Redeemable Noncontrolling Interest, Equity, Redemption Value

$ 60,158

Accounting Standards Update and Change in Accounting Principle

In October 2021, the Financial Accounting Standards Board ("FASB") issued Accounting Standard Update No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers (“ASU 2021-08”). This standard amends the existing guidance under ASC 805 to add contract assets and contract liabilities to the list of exceptions to the recognition and measurement principles that apply to business combinations. Under this standard, the acquirer of a business is expected to recognize and measure acquired contract assets and contract liabilities as if the acquirer entered into the original contract on the same date with the same terms in accordance with ASC 606 rather than at fair value on the date of acquisition. This update is effective for fiscal years beginning after December 15, 2022 and for interim periods within that year. We adopted this standard on October 1, 2023 using the prospective method. ASU 2021-08 will impact how we account for future business combinations.

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Controlling Shareholder (Details) - USD ($) $ in Thousands	Dec. 01, 2022	Nov. 30, 2022	Mar. 31, 2024
Risks and Uncertainties [Abstract]
ControllingShareholderOwnershipPercentage			56.00%
Related Party Transaction, Purchases from Related Party	$ 9	$ 8

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Revenue Recognition (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023
Revenue Recognition and Deferred Revenue [Abstract]
Unbilled Receivables, Current	$ 7,385		$ 7,385
Costs and estimated earnings in excess of billings	48,284		48,284		$ 48,620
Billings in excess of costs and estimated earnings	(127,767)		(127,767)		$ (103,771)
Contract with Customer, Liability, Revenue Recognized			92,970	$ 52,350
Performance Obligation Next 12 Months	875,040		875,040
Revenue, Remaining Performance Obligation, Amount	1,065,444		1,065,444
Disaggregation of Revenue [Line Items]
Revenues	705,733	$ 568,881	1,340,177	1,143,755
Contract with Customer, Liability, Revenue Recognized			92,970	52,350
Commercial and Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenues	97,069	69,033	182,021	129,300
Communications [Member]
Disaggregation of Revenue [Line Items]
Revenues	193,503	141,120	364,251	288,365
Infrastructure Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	75,789	52,616	138,677	101,900
Residential [Member]
Disaggregation of Revenue [Line Items]
Revenues	339,372	306,112	655,228	624,190
Fixed-price Contract [Member]
Disaggregation of Revenue [Line Items]
Revenues	637,031	509,370	1,212,900	1,014,163
Fixed-price Contract [Member] | Commercial and Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenues	82,972	59,915	156,882	111,810
Fixed-price Contract [Member] | Communications [Member]
Disaggregation of Revenue [Line Items]
Revenues	141,144	92,392	266,367	179,666
Fixed-price Contract [Member] | Infrastructure Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	73,543	50,951	134,423	98,497
Fixed-price Contract [Member] | Residential [Member]
Disaggregation of Revenue [Line Items]
Revenues	339,372	306,112	655,228	624,190
Time-and-materials Contract [Member]
Disaggregation of Revenue [Line Items]
Revenues	68,702	59,511	127,277	129,592
Time-and-materials Contract [Member] | Commercial and Industrial [Member]
Disaggregation of Revenue [Line Items]
Revenues	14,097	9,118	25,139	17,490
Time-and-materials Contract [Member] | Communications [Member]
Disaggregation of Revenue [Line Items]
Revenues	52,359	48,728	97,884	108,699
Time-and-materials Contract [Member] | Infrastructure Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	2,246	1,665	4,254	3,403
Time-and-materials Contract [Member] | Residential [Member]
Disaggregation of Revenue [Line Items]
Revenues	0	0	0	0
industrial Services [Member] | Infrastructure Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	12,076	11,562	23,174	22,516
Custom Power Solutions [Member] | Infrastructure Solutions [Member]
Disaggregation of Revenue [Line Items]
Revenues	63,713	41,054	115,503	79,384
Single Family Contracts [Member] | Residential [Member]
Disaggregation of Revenue [Line Items]
Revenues	252,292	227,216	498,859	470,925
Multi Family and Other [Member] | Residential [Member]
Disaggregation of Revenue [Line Items]
Revenues	$ 87,080	$ 78,896	$ 156,369	$ 153,265

XML

Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Debt Disclosure [Abstract]
Long-term debt	$ 0	$ 0
Letters of Credit Outstanding, Amount	5,606
Line of Credit Facility, Remaining Borrowing Capacity	143,501
Loans Payable to Bank, Noncurrent	0
Line of Credit Facility, Maximum Borrowing Capacity	$ 150,000

XML

Per Share Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Earnings Per Share [Abstract]
Undistributed Earnings (Loss) Available to Common Shareholders, Basic	$ 46,968	$ 18,780	$ 85,142	$ 42,117
Noncontrolling Interest, Change in Redemption Value	(5,941)	(2,771)	(8,723)	(5,826)
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic			0	(10)
Noncontrolling Interest, Period Increase (Decrease)	$ (5,941)	$ (2,771)	$ (8,723)	$ (5,826)
Weighted Average Number of Shares Outstanding, Basic	20,227,342	20,170,824	20,213,421	20,206,814
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	252,413	216,972	236,270	207,678
Weighted Average Number of Shares Outstanding, Diluted	20,479,755	20,387,796	20,449,691	20,414,492
Earnings Per Share, Basic	$ 2.32	$ 0.93	$ 4.21	$ 2.08
Earnings Per Share, Diluted	$ 2.29	$ 0.92	$ 4.16	$ 2.06
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net Income (Loss) Available to Common Stockholders, Basic	$ 52,909	$ 21,551	$ 93,865	$ 47,953
Phantom Share Units (PSUs) [Member]
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	21,584	22,344
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	21,584	22,344

XML

Operating Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023
Segment Reporting Information [Line Items]
Cost of services	$ 534,120	$ 467,955	$ 1,024,760	$ 947,391
Gross profit	171,613	100,926	315,417	196,364
Selling, general and administrative expenses	95,272	69,349	181,122	137,117
Contingent consideration	0	69	35	138
Loss (gain) on sale of assets	(1,373)	(102)	(1,444)	(13,162)
Operating income (loss)	77,714	31,610	135,704	72,271
Depreciation and amortization expense	7,821	6,864	15,438	13,252
Capital expenditures	6,844	3,965	13,359	6,677
Total assets	1,101,164	889,088	1,101,164	889,088	$ 981,600
Revenues	705,733	568,881	1,340,177	1,143,755
Noncontrolling Interest, Change in Redemption Value	5,941	2,771	8,723	5,826
Commercial and Industrial [Member]
Segment Reporting Information [Line Items]
Cost of services	76,806	62,296	147,851	118,949
Gross profit	20,263	6,737	34,170	10,351
Selling, general and administrative expenses	8,707	6,400	15,554	12,089
Loss (gain) on sale of assets	(68)	(99)	(53)	(13,134)
Operating income (loss)	11,624	436	18,669	11,396
Depreciation and amortization expense	485	412	960	804
Capital expenditures	1,397	546	2,218	1,269
Total assets	98,845	87,721	98,845	87,721
Revenues	97,069	69,033	182,021	129,300
Communications [Member]
Segment Reporting Information [Line Items]
Cost of services	154,568	115,957	289,041	241,464
Gross profit	38,935	25,163	75,210	46,901
Selling, general and administrative expenses	16,988	13,386	31,889	25,683
Loss (gain) on sale of assets	(16)	(3)	(20)	(3)
Operating income (loss)	21,963	11,780	43,341	21,221
Depreciation and amortization expense	866	502	1,589	932
Capital expenditures	936	480	1,936	1,122
Total assets	230,386	188,937	230,386	188,937
Revenues	193,503	141,120	364,251	288,365
Infrastructure Solutions [Member]
Segment Reporting Information [Line Items]
Cost of services	52,044	38,421	96,741	77,238
Gross profit	23,745	14,195	41,936	24,662
Selling, general and administrative expenses	7,627	5,990	14,912	11,751
Contingent consideration		0
Loss (gain) on sale of assets	0	0	0	(19)
Operating income (loss)	16,118	8,205	27,024	12,930
Depreciation and amortization expense	1,229	1,326	2,456	2,680
Capital expenditures	884	560	2,035	1,199
Total assets	200,476	173,621	200,476	173,621
Revenues	75,789	52,616	138,677	101,900
Residential [Member]
Segment Reporting Information [Line Items]
Cost of services	250,702	251,281	491,127	509,740
Gross profit	88,670	54,831	164,101	114,450
Selling, general and administrative expenses	55,258	37,999	106,636	77,050
Contingent consideration	0	69	35	138
Loss (gain) on sale of assets	(1,275)	0	(1,357)	(6)
Operating income (loss)	34,687	16,763	58,787	37,268
Depreciation and amortization expense	5,012	4,557	9,974	8,701
Capital expenditures	3,424	2,379	6,788	3,087
Total assets	396,760	389,946	396,760	389,946
Revenues	339,372	306,112	655,228	624,190
Corporate Segment [Member]
Segment Reporting Information [Line Items]
Cost of services	0	0	0	0
Gross profit	0	0	0	0
Selling, general and administrative expenses	6,692	5,574	12,131	10,544
Contingent consideration		0
Loss (gain) on sale of assets	(14)	0	(14)	0
Operating income (loss)	(6,678)	(5,574)	(12,117)	(10,544)
Depreciation and amortization expense	229	67	459	135
Capital expenditures	203	0	382	0
Total assets	174,697	48,863	174,697	48,863
Revenues	$ 0	$ 0	$ 0	$ 0

XML

Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023	Dec. 01, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock, Shares Authorized	100,000,000		100,000,000		100,000,000
Treasury Stock Acquired, Average Cost Per Share		$ 34.97		$ 31.05
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation			33,940	19,347
Stock Repurchase Program, Authorized Amount						$ 40,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant	570,655		570,655
Treasury Stock Acquired, Average Cost Per Share		$ 34.97		$ 31.05
Share-based Payment Arrangement, Shares Withheld for Tax Withholding Obligation			33,940	19,347
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 0	$ 0	$ 0	$ 25
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period				266
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period				266
Phantom Share Units (PSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	134	94	2,695	$ 190
us-gaap_PhantomShareUnitsPSUsMember_Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Payment Arrangement, Expense	$ 1,380	$ 958	$ 2,695	$ 1,740
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period			85,434
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period			5,094
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period			(82,180)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number	323,973		323,973
Stock Issued During Period, Shares, Treasury Stock Reissued			82,180	71,013
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period			5,094
Share-Based Payment Arrangement, Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Treasury Stock Reissued			1,000	2,000
Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized	3,000,000.0		3,000,000.0
Repurchase Agreements [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury Stock, Shares, Acquired	0	4,048		223,779

XML

Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	$ 925		$ 925		$ 783
Debt Securities, Trading	4,444		4,444
Financial and Nonfinancial Liabilities, Fair Value Disclosure	(793)		(793)		(657)
Business Combination, Contingent Consideration, Liability, Noncurrent					(4,465)
Fair Value, Net Asset (Liability)	17,624		17,624		(4,339)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings			$ (35)
Fair Value, Liability, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]			Contingent consideration
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements			$ (4,500)
Equity Securities, FV-NI, Current	13,048		13,048
Equity Securities, FV-NI, Unrealized Gain (Loss)	(1,852)	$ 0	(1,852)	$ 0
Debt Securities, Trading, Unrealized Gain (Loss)	(57)	0	62	0
Debt and Equity Securities, Unrealized Gain (Loss)	0	$ (1,909)	0	$ (1,790)
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	925		925		783
Debt Securities, Trading	4,444		4,444
Financial and Nonfinancial Liabilities, Fair Value Disclosure	(793)		(793)		(657)
Fair Value, Net Asset (Liability)	17,624		17,624		126
Equity Securities, FV-NI, Current	13,048		13,048
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Business Combination, Contingent Consideration, Liability, Noncurrent	0		0		(4,465)
Fair Value, Net Asset (Liability)	$ 0		$ 0		$ (4,465)

XML

Inventory (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Inventory Disclosure [Abstract]
Inventory, Raw Materials, Gross	$ 14,635	$ 14,334
Inventory, Work in Process, Gross	10,296	12,939
Inventory, Finished Goods, Gross	4,933	3,399
Other Inventory, Gross	74,748	64,983
Inventory, Net	$ 104,612	$ 95,655

XML

Goodwill and Intangible Assets Goodwill (Details) $ in Thousands	6 Months Ended
	Mar. 31, 2024 USD ($)
Goodwill [Line Items]
Goodwill	$ 92,395
Goodwill	92,395
Goodwill, Period Increase (Decrease)	0
Commercial and Industrial [Member]
Goodwill [Line Items]
Goodwill	0
Goodwill	0
Residential [Member]
Goodwill [Line Items]
Goodwill	51,370
Goodwill	51,370
Infrastructure Solutions [Member]
Goodwill [Line Items]
Goodwill	38,209
Goodwill	38,209
Communications [Member]
Goodwill [Line Items]
Goodwill	2,816
Goodwill	$ 2,816

XML

Goodwill and Intangible Assets Intangibles (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 108,205	$ 111,445
Finite-Lived Intangible Assets, Accumulated Amortization	(58,130)	(55,237)
Intangible Assets, Net (Excluding Goodwill)	50,075	56,208
Trademarks and Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	13,071	14,621
Finite-Lived Intangible Assets, Accumulated Amortization	(6,174)	(6,973)
Intangible Assets, Net (Excluding Goodwill)	$ 6,897	$ 7,648
Trademarks and Trade Names [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years	5 years
Trademarks and Trade Names [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years	20 years
Technical Library
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years	20 years
Finite-Lived Intangible Assets, Gross	$ 400	$ 400
Finite-Lived Intangible Assets, Accumulated Amortization	(211)	(201)
Intangible Assets, Net (Excluding Goodwill)	189	199
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	91,426	91,426
Finite-Lived Intangible Assets, Accumulated Amortization	(48,437)	(43,065)
Intangible Assets, Net (Excluding Goodwill)	$ 42,989	$ 48,361
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	6 years	6 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years	15 years
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years	5 years
Finite-Lived Intangible Assets, Gross	$ 40	$ 40
Finite-Lived Intangible Assets, Accumulated Amortization	(40)	(40)
Intangible Assets, Net (Excluding Goodwill)	$ 0	$ 0
Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	1 year	1 year
Finite-Lived Intangible Assets, Gross	$ 3,268	$ 4,958
Finite-Lived Intangible Assets, Accumulated Amortization	(3,268)	(4,958)
Intangible Assets, Net (Excluding Goodwill)	$ 0	$ 0

XML

Commitments and Contingencies (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Commitments and Contingencies Disclosure [Abstract]
Accrued Insurance, Current	$ 10,143	$ 7,726
Loss Contingencies [Line Items]
Letters of Credit Outstanding, Amount	5,606
Revenue, Remaining Performance Obligation, Amount	1,065,444
Estimated cost of completion of bonded projects	138,588
Estimated cost of completion of bonded projects	138,588
Purchase Commitment, Remaining Minimum Amount Committed	0
Insurance Related [Member]
Loss Contingencies [Line Items]
Letters of Credit Outstanding, Amount	$ 5,606	$ 4,166

XML

Leases (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023
Leases [Abstract]
Operating Lease, Liability, Current	$ 19,619		$ 19,619		$ 19,496
Finance Lease, Liability, Current	4,657		4,657		$ 4,301
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	10,701		10,701
Lessee, Operating Lease, Liability, Payments, Due Year Two	18,274		18,274
Lessee, Operating Lease, Liability, Payments, Due Year Three	14,566		14,566
Lessee, Operating Lease, Liability, Payments, Due Year Four	10,050		10,050
Lessee, Operating Lease, Liability, Payments, Due Year Five	5,659		5,659
Lessee, Operating Lease, Liability, Payments, Due after Year Five	5,473		5,473
Lessee, Operating Lease, Liability, Payments, Due	64,723		64,723
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	6,929		6,929
Operating Lease, Liability	57,794		57,794
Finance Lease, Liability, Payments, Due Next Twelve Months	2,438		2,438
Finance Lease, Liability, Payments, Due Year Two	4,653		4,653
Finance Lease, Liability, Payments, Due Year Three	3,786		3,786
Finance Lease, Liability, Payments, Due Year Four	1,984		1,984
Finance Lease, Liability, Payments, Due Year Five	241		241
Finance Lease, Liability, Payments, Due after Year Five	8		8
Finance Lease, Liability, Payment, Due	13,110		13,110
Finance Lease, Liability, Undiscounted Excess Amount	1,212		1,212
Finance Lease, Liability	11,898		11,898
Lessee, Total Lease, Liability, Payments, Remainder of Fiscal Year [Line Items]	13,139		13,139
Total Lease, Liability, Payments, Year Two	22,927		22,927
Total Lease, Liability, Payments, Year Three	18,352		18,352
Total Lease, Liability, Payments, Year Four	12,034		12,034
Total Lease, Liability, Payments, Year Five	5,900		5,900
Total Lease, Liability, Payments, Due After Year Five	5,481		5,481
Total Lease, Liability, Payments Due	77,833		77,833
Total Lease, Liability, Undiscounted Excess Amount	8,141		8,141
Total Lease, Liability	69,692		69,692
Lessee, Operating Lease, Lease Not yet Commenced, Description	3,598		3,598
Operating Lease, Cost	5,718	$ 4,407	11,414	$ 9,333
Finance Lease, Right-of-Use Asset, Amortization	1,126	1,011	2,134	1,686
Finance Lease, Interest Expense	215	216	399	366
Finance Lease, Cost	1,341	1,227	2,533	2,052
Short-term Lease, Cost	389	513	810	1,102
Variable Lease, Cost	1,083	661	2,081	1,074
Lease, Cost	8,531	6,808	16,838	13,561
Operating Lease, Payments	6,026	5,867	12,064	11,818
Finance Lease, Interest Payment on Liability	215	216	399	366
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	1,116	2,872	7,575	9,191
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 644	$ 1,882	$ 984	$ 4,826
Operating Lease, Weighted Average Remaining Lease Term	4 years 1 month 6 days		4 years 1 month 6 days		4 years 6 months
Finance Lease, Weighted Average Remaining Lease Term	3 years		3 years		3 years 4 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent	5.30%		5.30%		5.10%
Finance Lease, Weighted Average Discount Rate, Percent	6.30%		6.30%		6.00%
Lessee, Lease, Description [Line Items]
Operating Lease, Liability, Current	$ 19,619		$ 19,619		$ 19,496
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accounts payable and accrued expenses		Accounts payable and accrued expenses
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accounts payable and accrued expenses		Accounts payable and accrued expenses
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other non-current liabilities		Other non-current liabilities
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other non-current assets		Other non-current assets

XML

Discontinued Operations and Disposal Groups (Details) $ in Thousands		3 Months Ended	6 Months Ended
	Oct. 07, 2022	Dec. 31, 2023 business	Mar. 31, 2024 business	Mar. 31, 2023 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal | $				$ 13,045
Sale of Stock, Percentage of Ownership before Transaction	100.00%
Number of Businesses Acquired | business		0	0

XML

Subsequent Events (Details) - Greiner Industries $ in Thousands	Apr. 01, 2024 USD ($)
Subsequent Event [Line Items]
Payments to Acquire Businesses, Gross	$ 69,804
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 5,000