Concentration of Credit Risk

6 Months Ended

Jan. 25, 2014

The Company’s customer base is highly concentrated, with its top five customers accounting for approximately 58.2% of its total revenues in each of the six months ended January 25, 2014 and January 26, 2013. Revenues from three of the top five customers exceeded 10% of total revenue during the three or six months ended January 25, 2014 or January 26, 2013:



	For the Three Months Ended		For the Six Months Ended
	January 25, 2014	January 26, 2013	January 25, 2014	January 26, 2013
AT&T Inc. ("AT&T")	18.7%	13.6%	18.0%	13.5%
CenturyLink, Inc. ("CenturyLink")	14.4%	14.7%	15.0%	14.2%
Comcast Corporation ("Comcast")	12.0%	11.0%	11.2%	11.8%

The Company believes that none of its significant customers was experiencing financial difficulties that would materially impact the collectability of the Company’s trade accounts receivable and costs in excess of billings as of January 25, 2014 and July 27, 2013. Customers representing 10% or more of combined amounts of trade accounts receivable and costs and estimated earnings in excess of billings as of January 25, 2014 or July 27, 2013 had the following outstanding balances and the related percentage of the Company’s total outstanding balances:



	January 25, 2014				July 27, 2013
	Amount		% of Total		Amount		% of Total
			(Dollars in millions)
AT&T	$	59.7	14.7	%	$	57.4	12.6	%
CenturyLink	$	48.8	12.0	%	$	62.6	13.7	%
Windstream Corporation	$	30.6	7.5	%	$	59.4	13.0	%

- Definition

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

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