Recent News

• 06.11.2025 - Designing a Landfill Expansion that Provides an Additional 30 Years of Disposal Capacity
• 06.10.2025 - Eric Woolery on Leveraging Airborne Geomatics to Create Safer Infrastructure and More Resilient Communities
• 06.04.2025 - Leading with Science® to Protect our Oceans for Future Generations
• 06.03.2025 - César León Discusses How Tetra Tech Helps Communities Combat Plastic Pollution
• 05.23.2025 - Safety Month: Leading with Safety
• 05.13.2025 - Tetra Tech Hosts Pavilion at UK’s Largest Real Estate and Infrastructure Forum
• 05.05.2025 - Tetra Tech Q2 2025 Earnings Call
• 04.29.2025 - Using Digester Gas to Develop and Implement Three Renewable Natural Gas Projects
• 04.28.2025 - Demystifying SCADA Control Systems
• 04.18.2025 - Treating PFAS to Secure Safe Drinking Water

Recent Filings

• 05.08.2025 - 10-Q Quarterly report [Sections 13 or 15(d)]
• 05.07.2025 - 8-K Current report
• 05.07.2025 - EX-99.1 EX-99.1
• 04.15.2025 - SCHEDULE 13D/A General Statement of Acquisition of Beneficial Ownership
• 04.07.2025 - SCHEDULE 13G/A Statement of Beneficial Ownership by Certain Investors