Tetra Tech, Inc.

Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide. With more than 25,000 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. For more information about Tetra Tech, please visit tetratech.com or follow us on LinkedIn and Facebook.

Current securities

1. Other EventsSep 10, 2026
2. S-8 filingAug 5, 2026
3. 10-Q filingJul 31, 2026
4. Results of Operations and Financial Condition · Other EventsJul 29, 2026
5. 10-Q filingMay 1, 2026