About Us
Leading with Science® to solve the world’s most complex problems
Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide.
With 30,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science® to address the entire water cycle, protect and restore the environment, and design sustainable and resilient infrastructure.
$5B
revenue
100,000
projects
30,000
employees
100+
countries
550
offices
Who we are
Tetra Tech has been Leading with Science® to address our clients’ most complex challenges since 1966.
Our approach
Safety and sustainability are at the heart of our business. We improve the quality of life for people across the globe.
What we do
Learn how we solve our clients’ problems with practical, innovative, sustainable solutions.
Where we work
With 550 offices worldwide, we combine local understanding with the resources and expertise for the most demanding projects.
Engineering News-Record #1 Rankings
#1
in Water Treatment/Desalination
#1
in Environmental Management
#1
in Wind Power
#1
in Hydro Plants
Recognition
- 2024: Barron’s 100 Most Sustainable U.S. Companies – advanced to #8 from #24.
- 2023: Investor’s Business Daily 2023 Best ESG Companies special report #1 ranking for Human Capital and #2 ranking for Environment.
- 2023: CCBJ and EBJ awards for outstanding business and achievement in renewable energy, forest conservation, ocean monitoring, and dam safety. Read more.
- 2023: Tetra Tech is honored to be selected for the 2023 Society of American Military Engineers JW Morris Large Business Award.
- 2022: U.S. Small Business Administration Dwight D. Eisenhower Award, Excellence in Service Category. Read more.
- 2021: Society of American Military Engineers Large Business Award for achievement in small business mentorship. Read more.
