2004 Top 100

53: Tetra Tech Inc.
Top 100 Revenue: $135,546,000
Defense Revenue: $108,726,000
Civilian Revenue: $26,820,000
2003 Revenue: $1.1 billion
2003 Earnings: Loss of $64.6 million
2002 Revenue: N/A
2002 Earnings: N/A
Number of employees: 9,000
Headquarters: Pasadena, Calif.
Website: www.tetratech.com
Leadership: Li-San Hwang, chairman and CEO; James Jaska, president
Ticker: N/A
Lines of business: Research and development, applied science and technology, engineering design, construction management and operations and maintenance
Major customers: Environmental Protection Agency and Navy
Major contracts/projects: Tetra Tech is providing program management and technical environmental services on the Comprehensive Long-Term Environmental Action Navy contract, worth $80 million.