Tetra Tech(TTEK) - 2025 Q3 - Quarterly Results

Exhibit 99.1 NEWS RELEASE July 30, 2025 Tetra Tech Reports Strong Third Quarter 2025 Results Pasadena, California. Tetra Tech, Inc. (NASDAQ: TTEK), a leading provider of high-end consulting and engineering services in water, environment and sustainable infrastructure, today announced results for the third quarter ended June 29, 2025. | | | | Q3 FY25 | | YTD FY25 | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | Excluding | | | Excluding | | | | | | | USAID / | | | USAID / | | | $ mil ...