60 : Tetra Tech Inc.
Top 100 Revenue: $381,344,102
Defense revenue: $138,628,834
Civilian revenue: $242,715,268
2009 revenue: $2.3 billion
2009 earnings : $87 million
2008 revenue: $2.1 billion
2008 earnings: $60.9 million
Number of employees: 10,000
Headquarters: Pasadena, Calif.
Web address: http://www.tetratech.com
President/CEO: Dan L. Batrack, chairman, president and CEO
Ticker: TTEK
Lines of business: Environmental consulting services, technical support services, engineering and architecture services and remediation and construction management
Major customers: Defense Department, Navy, Army, National Science Foundation, Federal Aviation Administration and U.S. Agency for International Development
Major contracts/projects: Tetra Tech is working on a $51 million contract to provide information technology support services to the National Science Foundation. Tetra Tech has provided information technology support, proprietary applications development and other data management services to the NSF since 2003.
Previous Profile: 2009
Sources: Washington Technology, Eagle Eye Publishers, Houlihan Lokey

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