55 : Tetra Tech Inc.
Top 100 Revenue: $384,057,000
Defense revenue: $63,013,000
Civilian revenue: $321,044,000
2012 revenue: $2.7 billion
2012 earnings : $104,380
2011 revenue: $2.6 billion
2011 earnings: $90,039
Number of employees: 14,000
Headquarters: Pasadena, Calif.
Web address: http://www.tetratech.com
President/CEO: Dan L. Batrack, Chairman, President and CEO
Ticker: TTEK
Lines of business: Water, Environment, Energy, Infrastructure, Natural Resources
Major contracts/projects: Alliant GWAC, MOBIS, LOGWORLD, FABS
Sources: Washington Technology, Federal Procurement Data System and Houlihan Lokey

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