2025 Top 100
| Top 100 Revenue: | $564,464,000 |
| Defense Revenue: | $114,982,000 |
| Civilian Revenue: | $449,482,000 |
| 2024 Revenue: | $5.2 billion |
| 2024 Earnings: | N/A |
| 2023 Revenue: | N/A |
| 2023 Earnings: | N/A |
| Number of employees: | 30,000 |
| Headquarters: | Pasadena, California |
| Website: | https://www.tetratech.com/ |
| Leadership: | Dan Batrack, CEO and president Steven Burdick, CFO Leslie L. Shoemaker, chief innovation and sustainability officer Preston Hopson, chief legal and human capital officer Roger Argus, EVP, corporate development, and president, commercial/international group William Brownlie, chief engineer Brian Carter, corporate controller and chief accounting officer Craig Christensen, CIO Richard Lemmon, SVP, corporate administration Brendan O'Rourke, SVP, enterprise risk management Jeremy Travis, president, government services group, and U.S. government division Stuart Fowler, president, high performance buildings division Craig Hatch, president, Europe and U.K. division Olivier Jeannot, president, federal IT division Thomas Reilly, president, global development services division Lauren Springer, president, U.S. infrastructure division Meegan Sullivan, president, Asia Pacific division Bernard Teufele, president, environment/geotech divion Jonathan Weiss, president, energy engineering division |
| Ticker: | TTEK |
| Lines of business: | One Water, data center solutions, defense services, digital systems, disaster and emergency management, energy, environment, high performance buildings, federal IT, international development, mining and manufacturing, solid waste, strategic communication, Tetra Tech Delta, transportation |
| Major customers: | USAID, FAA, Army, EPA, State |
| Major contracts/projects: | https://www.tetratech.com/contracts/ |
