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. |