2005 Top 100

65: Tetra Tech Inc.
Top 100 Revenue: $145,167,391
Defense Revenue: $116,443,641
Civilian Revenue: $28,723,750
2004 Revenue: $1.4 billion
2004 Earnings: $23.3 million
2003 Revenue: $1.1 billion
2003 Earnings: Loss of $64.6 million
Number of employees: 8,000
Headquarters: Pasadena, Calif.
Website: www.tetratech.com
Leadership:

Li-San Hwang, chairman and CEO, Sam W. Box, president

Same as president

Ticker: N/A
Lines of business: Facilities and systems infrastructure, water resource and environmental management and security engineering and risk mitigation
Major customers: Defense Department, Navy, Environmental Protection Agency and Energy Department
Major contracts/projects: Tetra Tech is providing program management and technical environmental services to the Navy under a comprehensive long-term environmental action contract.
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