2023 Top 100
44: TETRA TECH, INC.
| Top 100 Revenue: | $697,077,000 |
| Defense Revenue: | $182,960,000 |
| Civilian Revenue: | $514,117,000 |
| 2022 Revenue: | $3.5 billion |
| 2022 Earnings: | $334 million |
| 2021 Revenue: | $3.2 billion |
| 2021 Earnings: | $232.8 million |
| Number of employees: | 27,000 |
| Headquarters: | Pasadena, California |
| Website: | https://www.tetratech.com/ |
| Leadership: | Dan L. Batrack, chair and CEO |
| Ticker: | TTEK |
| Lines of business: | One Water, Environment, energy, AI and advanced data analytics, asset management, assessment and planning, climate services, defense services, design and engineering, disaster recovery, emergency management, federal IT, high performance buildings, ice engineering and winter roads, resilient infrastructure, international development, laboratory services, learning and development, management consulting, modeling, program and construction management, resource management, solid waste solutions, surveying and mapping |
| Major customers: | USAID, Defense, EPA, State, Transportation |
| Major contracts/projects: | GSA schedules, Air Force, Army, Coast Guard, Navy and other contracts |