Exhibit 99.1

PROS Holdings, Inc. Reports Second Quarter 2009
Financial Results

• Second quarter total revenue of $17.3 million.

• GAAP income from operations of $2.1 million, net income of $1.5 million or $0.06 per diluted share for the second quarter.

• Non-GAAP income from operations of $3.5 million, net income of $2.5 million or $0.10 per diluted share for the second quarter, exceeding the high end of our guided range.

• Cash and cash equivalents of $53.7 million, no debt and $2.1 million of positive cash flow from operations for the six months ended June 30, 2009.

Houston, Texas — August 6, 2009 — PROS Holdings, Inc. (NYSE: PRO), a leading provider of pricing and margin optimization science and software, today announced financial results for the second quarter ended June 30, 2009.

Total revenue for the second quarter of 2009 was $17.3 million, slightly above the midpoint of the company’s guided range. License and implementation revenue was $11.2 million and maintenance and support revenue was $6.1 million.

Bert Winemiller, Chairman and CEO, stated, “We are pleased with our financial performance in the second quarter of 2009, as revenue was above the midpoint of our guidance and we exceeded the high-end of our EPS guidance. We believe this was another solid quarter given the current economic environment. We plan to continue our focus on sales and marketing to position us to take advantage of the large market opportunity ahead of us, and we are prudently investing in people, product and processes to drive our science and product innovation and to increase our competitive advantage. We believe our experienced management team is focused on the right strategies to extend our leadership position in the pricing and margin optimization market. We have the expertise and resources to continue to deliver innovative, high ROI pricing products that provide a fast time to value to our customers as we help improve their financial performance. Even though the macro economy continues to be a challenge, we believe interest in PROS science-based Pricing and Margin Optimization software continues to increase as sales activity has improved incrementally and we have had increased participation by prospects at our new regional pricing leadership events and webcasts. We are cautiously optimistic that our business is stabilizing going into the last half of the year. PROS proven track record, proven processes and proven solutions are the keys to our long-term success and drive our high level of customer satisfaction.”

For the quarter ended June 30, 2009, PROS reported income from operations, in accordance with generally accepted accounting principles (“GAAP”), of $2.1 million compared with $3.2 million in the second quarter of 2008. GAAP net income in the quarter was $1.5 million, or $0.06 per diluted share, exceeding the high end of its guided range, compared with $2.2 million, or $0.08 per diluted share, in the second quarter of 2008.

For the quarter ended June 30, 2009, non-GAAP income from operations was $3.5 million compared with $4.2 million for the same period in 2008. Non-GAAP net income was $2.5 million, or $0.10 per diluted share, exceeding the high end of the Company’s guided range, compared with non-GAAP net income of $2.9 million, or $0.11 per

diluted share, in the second quarter of 2008. These non-GAAP results in the second quarter of 2009 and 2008 exclude $1.4 million and $1.0 million, respectively, of SFAS 123R non cash equity-based compensation charges.

The effective tax rate was approximately 28% for the three months ended June 30, 2009 compared to an effective tax rate of approximately 36% for the three months ended June 30, 2008. The change in the tax rates was entirely due to the timing of the reinstatement of the Research and Experimentation (“R&E”) tax credit which was not signed into law until October 2008. As a result, PROS recorded the full benefit of the R&E tax credit for 2008 in the fourth quarter of 2008.

Charles Murphy, Executive Vice President and CFO, stated, “With the continuing uncertainty of the global recession, we are very pleased with our operating results for the second quarter. While maintenance and support revenue increased over last year, license and implementation revenue declined as a result of longer sales cycles, increased scrutiny on purchasing decisions and overall cautiousness taken by customers as a result of continued economic challenges. Even in this challenging economy we were able to maintain a good level of profitability with non-GAAP operating margin of 20% for the quarter. Our strong balance sheet, history of profitability and positive cash flow positions us positively as customers consider vendor viability when making a purchasing decision. While our business trends are showing signs of stabilizing, we believe it is too early to discern a significant change in our business environment. However, we have seen enough of an improvement in our business to expect fourth quarter revenue to increase slightly over the third quarter. Also, the strength of our balance sheet positions us to achieve our objectives with $53.7 million in cash, $47.1 million in working capital and no debt.”

The attached table provides a reconciliation of GAAP to non-GAAP income from operations and net income as well as net income per share available to common stockholders for the three and six months ended June 30, 2009 and 2008.

Financial Outlook

Based on information as of today, PROS is providing the following outlook for the third quarter of 2009:

Third Quarter of Fiscal Year 2009:

• The Company expects total revenue in the range of $16.1 million to $16.5 million.

• The Company is projecting GAAP income from operations of $0.5 million to $0.9 million and GAAP diluted earnings per share of $0.02 to $0.03. Earnings per share are based on an estimated weighted average of 26.5 million diluted shares outstanding.

• The Company is projecting non-GAAP income from operations of $2.0 million to $2.4 million and non-GAAP diluted earnings per share of $0.06 to $0.07. Non-GAAP income from operations for the third quarter excludes estimated SFAS 123R equity-based compensation charges of approximately $1.5 million.

PROS remains positive about the Company’s long-term opportunities. However, with the global economy in recession, forecasting for the longer-term is considerably more challenging. As such, PROS will continue the practice of providing only quarterly guidance.

Conference Call

In conjunction with this announcement, PROS Holdings, Inc. will host a conference call on August 6, 2009, at 4:30 p.m. (EST) to discuss the company’s financial results. To access this call, dial (800) 798-2801 (domestic) or (617) 614-6205 (international). The pass code for the call is 60185019. Additionally, a live web cast of the conference call will be available in the “Investor Relations” section of the Company’s web site at www.prospricing.com.

Following the conference call, a replay will be available at (888) 286-8010 (domestic) or (617) 801-6888 (international). The replay pass code is 69706504. An archived web cast of this conference call will also be available in the “Investor Relations” section of the Company’s web site at www.prospricing.com.

About PROS

PROS Holdings, Inc. (NYSE: PRO) is a leading provider of pricing and margin optimization software products, specializing in price analytics, price execution, and price optimization. By using PROS’ software products, companies gain insight into their pricing strategies, identify pricing-based profit leaks, optimize their pricing decision making and improve their business processes and financial performance. PROS’ software products implement advanced pricing science, which includes operations research, forecasting and statistics. PROS high performance software architecture supports real-time high volume transaction processing and allows PROS to handle the processing and database requirements of the most sophisticated and largest customers, including customers with 100’s of simultaneous users and sub-second electronic transactions. PROS provides professional services to configure its software products to meet the specific pricing needs of each customer. PROS has implemented over 200 solutions across a range of industries in more than 40 countries.

Founded in 1985, PROS is headquartered in Houston, Texas. Today, PROS has over 350 employees, more than 100 with advanced degrees and over 25 with Ph.D.s. To learn more about PROS, please visit www.prospricing.com.

Forward-looking Statements

This press release contains forward-looking statements, including statements about PROS’ future financial performance, penetration and expansion into target markets, product development, the demand for PROS solutions, the performance of PROS solutions, and the predictability of the PROS business. The forward-looking statements contained in this press release are based upon PROS’ historical performance and its current plans, estimates and expectations and are not a representation that such plans, estimates or expectations will be achieved. Factors that could cause actual results to differ materially from those described herein include: (a) the risk that the continued slowdown in the economy has on PROS’ sales cycles, prospects’ and customers’ spending decisions and timing of implementation decisions, (b) PROS’ ability to sell its solutions and successfully install and deliver the products and services at levels required to meet its future financial performance expectations, (c) PROS’ ability to develop and sell new products and product enhancements with the required functionality desired, (d) the ability of the market for enterprise pricing and margin optimization software to grow, (e) the ability of the PROS revenue model to continue to provide the level of predictability to the PROS business which it historically has provided, (f) PROS’ ability to maintain its current level of gross margins, (g) PROS’ ability to maintain historical maintenance renewal rates, (h) PROS’ ability to deliver its solutions according to the acceptance criteria of its customers and the avoidance of dispute related thereto, (i) PROS’ successful implementation of its solutions without modification or negotiation of contractual arrangements and (j) the impact of currency fluctuations on our results of operations. Additional information relating to the uncertainty affecting the PROS business are contained in PROS’ filings with the Securities and Exchange Commission. These forward-looking statements represent PROS’ expectations as of the date of this press release. Subsequent events may cause these expectations to change, and PROS disclaims any obligations to update or alter these forward-looking statements in the future, whether as a result of new information, future events or otherwise.

Non-GAAP Financial Measures

PROS has provided in this release certain financial information that has not been prepared in accordance with GAAP. This information includes non-GAAP income from operations, net income and diluted earnings per share. PROS uses these non-GAAP financial measures internally in analyzing its financial results and believes they are useful to investors, as a supplement to GAAP measures, in evaluating PROS’ ongoing operational performance. PROS believes that the use of these non-GAAP financial measures provides an additional tool for investors to use in evaluating ongoing operating results. As noted, the non-GAAP financial measures discussed above are equity-based compensation charges for the three and six months ended June 30, 2009 of $1.4 million and $2.6 million, respectively, pursuant to SFAS 123R.

Non-GAAP financial measures should not be considered in isolation from, or as a substitute for, financial information prepared in accordance with GAAP. Investors are encouraged to review the reconciliation of these non-GAAP measures to their most directly comparable GAAP financial measure as detailed above. A reconciliation of GAAP to the non-GAAP financial measures has been provided in the tables included as part of this press release.

Investor Contact:
PROS Investor Relations
Tel: 713-335-5879
e-mail: ir@PROSpricing.com

Media Contact:
PROS Corporate Communications
Tel: 713-335-5197
e-mail: corpcomm@PROSpricing.com

PROS HOLDINGS, INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(Dollars in thousands)
(Unaudited)

	June 30,			December 31,
	2009			2008
Assets:
Current assets:
Cash and cash equivalents	$	53,746		$	51,979
Accounts and unbilled receivables, net of allowance of $1,900		17,672			16,552
Prepaid expenses and other current assets		3,909			3,238
Total current assets		75,327			71,769
Property and equipment, net		2,972			2,901
Other long term assets, net		2,260			2,297
Total assets	$	80,559		$	76,967
Liabilities and Stockholders’ Equity:
Current liabilities:
Accounts payable	$	1,013		$	1,088
Accrued liabilities		2,446			3,293
Accrued payroll and other employee benefits		3,454			4,493
Deferred revenue		16,405			16,288
Other current liabilities		4,866			4,866
Total current liabilities		28,184			30,028
Long-term deferred revenue		2,516			3,187
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.001 par value, 75,000,000 shares authorized, 30,124,735 and 30,095,846 shares issued, respectively, 25,707,150 and 25,678,261 shares outstanding, respectively		30			30
Additional paid-in capital		60,249			57,668
Treasury stock 4,417,585 common shares, at cost		(13,938	)		(13,938	)
Retained earnings (deficit)		3,518			(8	)
Total stockholders’ equity		49,859			43,752
Total liabilities and stockholders’ equity	$	80,559		$	76,967

PROS HOLDINGS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS — GAAP
(Dollars in thousands, except per share data)
(Unaudited)

	For the Three Months						For the Six Months
	Ended June 30,						Ended June 30,
	2009			2008			2009			2008
Revenue:
License and implementation	$	11,204		$	13,375		$	23,128		$	26,181
Maintenance and support		6,122			5,237			12,224			10,351
Total revenue		17,326			18,612			35,352			36,532
Cost of revenue:
License and implementation		3,765			3,596			7,357			7,009
Maintenance and support		1,154			1,059			2,380			2,239
Total cost of revenue		4,919			4,655			9,737			9,248
Gross profit		12,407			13,957			25,615			27,284
Gross margin		71.6	%		75.0	%		72.5	%		74.7	%
Operating expenses:
Selling, general and administrative		5,561			5,593			11,065			10,718
Research and development		4,774			5,159			9,822			9,831
Total operating expenses		10,335			10,752			20,887			20,549
Income from operations		2,072			3,205			4,728			6,735
Other income:
Interest income		57			302			147			724
Income before income tax provision		2,129			3,507			4,875			7,459
Income tax provision		594			1,266			1,349			2,646
Net income	$	1,535		$	2,241			3,526			4,813
Net earnings attributable to common stockholders per share:
Basic	$	0.06		$	0.09		$	0.14		$	0.18
Diluted	$	0.06		$	0.08		$	0.13		$	0.18
Weighted average number of shares:
Basic		25,697,856			26,215,014			25,694,933			26,188,225
Diluted		26,488,540			26,511,933			26,413,376			26,588,661

PROS HOLDINGS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS — RECONCILIATION
OF GAAP TO NON-GAAP
(Dollars in thousands, except per share data)
(Unaudited)

	For the Three Months						For the Six Months
	Ended June 30,						Ending June 30,
	2009			2008			2009			2008
Net income	$	1,535		$	2,241		$	3,526		$	4,813
GAAP SFAS 123R (Non-Cash Compensation):
Cost of revenue		232			143			411			322
Selling, general and administrative		738			540			1,324			990
Research and development		429			302			816			581
Total operating expenses		1,399			985			2,551			1,893
Tax impact of SFAS 123R		(390	)		(356	)		(706	)		(672	)
Total Non-GAAP tax impact		(390	)		(356	)		(706	)		(672	)
Non-GAAP net income	$	2,544		$	2,870		$	5,371		$	6,034
Basic	$	0.10		$	0.11		$	0.21		$	0.23
Diluted	$	0.10		$	0.11		$	0.20		$	0.23
Shares used in computing net income per common share:
Basic		25,697,856			26,215,014			25,694,933			26,188,225
Diluted		26,488,540			26,511,933			26,413,376			26,588,661
Income from operations	$	2,072		$	3,205		$	4,728		$	6,735
GAAP SFAS 123R (Non-Cash Compensation):		1,399			985			2,551			1,893
Non-GAAP income from operations	$	3,471		$	4,190		$	7,279		$	8,628
Non-GAAP income from operations %		20.0	%		22.5	%		20.6	%		23.6	%
GAAP — gross profit	$	12,407		$	13,957		$	25,615		$	27,284
GAAP SFAS 123R (Non-Cash Compensation):		232			143			411			322
Non-GAAP gross profit	$	12,639		$	14,100		$	26,026		$	27,606
Non-GAAP gross margin		72.9	%		75.8	%		73.6	%		75.6	%

PROS HOLDINGS, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(Dollars in thousands)
(Unaudited)

	For the Six Months
	Ended June 30,
	2009			2008
Operating activities:
Net income	$	3,526		$	4,813
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		624			642
Noncash compensation		2,551			1,893
Provision for doubtful accounts		36			14
Changes in operating assets and liabilities:
Accounts receivable		54			(868	)
Unbilled receivables		(1,167	)		(1,268	)
Prepaid expenses and other		(633	)		738
Accounts payable, accrued liabilities, accrued contract labor and accrued payroll		(2,320	)		(2,044	)
Deferred revenue		(554	)		1,082
Net cash provided by operating activities		2,117			5,002
Investing activities:
Purchases of property and equipment		(380	)		(805	)
Net cash used in investing activities		(380	)		(805	)
Financing activities:
Proceeds from the exercise of stock options		30			241
Net cash used in financing activities		30			241
Net increase (decrease) in cash and cash equivalents		1,767			4,438
Cash and cash equivalents:
Beginning of period		51,979			44,378
End of period	$	53,746		$	48,816