2009 Top 100
56: Tetra Tech Inc.
| Top 100 Revenue: | $353,063,358 |
| Defense Revenue: | $216,082,889 |
| Civilian Revenue: | $136,980,469 |
| 2008 Revenue: | $2.1 billion |
| 2008 Earnings: | $60.9 million |
| 2007 Revenue: | $1.6 billion |
| 2007 Earnings: | $46.4 million |
| Number of employees: | 8,500 |
| Headquarters: | Pasadena, Calif. |
| Website: | www.tetratech.com |
| Leadership: | Dan L. Batrack, chairman, CEO and president |
| Ticker: | N/A |
| Lines of business: | Water resources, watershed management, environmental management, information technology, groundwater services, mining services, geotechnical engineering, water and wastewater, land development services, buildings, transportation services, international development, remedial planning, carbon management, systems test and evaluation, regulatory consulting, disaster management, technical augmentation, construction, unexploded ordnance, wind energy, communications, environmental remediation, nuclear engineering and wetland restoration |
| Major customers: | U.S. Agency for International Development, Energy Department, Environmental Protection Agency, Navy and Air Force |
| Major contracts/projects: | Tetra Tech was one of five companies awarded the $500 million global architect-engineer infrastructure services contract with the U.S. Agency for International Development. The company is providing engineering studies and design services for USAID-funded infrastructure projects. |