Concentrations of Risk

6 Months Ended

Jun. 30, 2011

Concentrations of Risk

Concentrations of Risk

Note 15 - Concentrations of Risk

The Company had approximately 300 customers as of June 30, 2011, which included some of the largest and most prominent companies in the communications, utilities and government industries. MasTec's customers include public and private energy providers, pipeline operators, wireless service providers, satellite and broadband operators, incumbent local exchange carriers, long distance carriers and government entities. The industries served by MasTec's customers include, among others: utilities (including wind farms, solar farms and other renewable energy; natural gas and petroleum pipeline infrastructure; and industrial infrastructure), communications (including wireless, wireline and satellite communications) and government (including water, sewer and other utility and communications work on military bases).

Revenues for customers by industry for the periods indicated are as follows (in millions):

	Three Months Ended June 30,								Six Months Ended June 30,
	2011				2010				2011				2010
Communications	$	392.9	52	%	$	281.4	57	%	$	738.9	54	%	$	506.2	54	%
Utilities		346.8	46	%		202.2	41	%		611.1	45	%		416.4	44	%
Government		11.2	2	%		11.5	2	%		19.4	1	%		22.7	2	%
	$	750.9	100	%	$	495.1	100	%	$	1,369.4	100	%	$	945.3	100	%

Revenue concentration information, as a percent of total consolidated revenue, is as follows:

	Three Months Ended June  30,						Six Months Ended June  30,
	2011			2010			2011			2010
Revenue from top ten customers		72	%		73	%		75	%		75	%
Revenue from specific customers:
AT&T		24	%		20	%		25	%		18	%
DIRECTV®		20	%		26	%		22	%		26	%

In addition, the Company derived 12% and 15%, respectively, of its revenues for the three and six months ended June 30, 2011 from El Paso Corporation.

Foreign Operations. In April 2011, the Company expanded its foreign operations through its acquisition of Fabcor, a Canadian natural gas and petroleum pipeline infrastructure construction company. See Note 3 – Acquisitions and Other Investments for details of the Fabcor acquisition. For the three months ended June 30, 2011 and 2010, revenues of $20.6 million and $1.2 million, respectively, were derived from foreign operations and for the six months ended June 30, 2011 and 2010, revenues of $22.6 million and $2.3 million, respectively, were derived from foreign operations, the majority of which were earned in Canada, Latin America and the Caribbean. In addition, the Company held property and equipment in foreign countries of $15.2 million and $1.4 million as of June 30, 2011 and December 31, 2010, respectively.