Tetra Tech, Inc. (NASDAQ:TTEK), a leading provider of high-end consulting and engineering services in water, environment, and sustainable infrastructure, announced today that the Federal Aviation Administration (FAA) selected Tetra Tech for a $27 million task order under the Program Support Services contract to provide technical, analytical, and program management support for its major airspace redesign program.

Under this 4-year contract, Tetra Tech engineers, analysts, and airspace experts will provide high-end technical solutions to advance the FAA’s Brand New Air Traffic Control System (BNATCS) Air Space Modernization program and support modernizing the National Airspace System through Performance Based Navigation (PBN) initiatives. Tetra Tech will design, develop, and evaluate the impact of routes; manage the environmental screening and compliance process; and establish strategic deconfliction including operational research modeling.

"Tetra Tech has provided innovative solutions to support the FAA in providing the safest, most efficient aerospace system in the world for more than 30 years," said Roger Argus, Tetra Tech Chief Executive Officer. "We are pleased to continue using our Leading with Science^® approach to advance the FAA’s critical airspace and instrument procedure modernization program to support public safety and a strong economy."

About Tetra Tech

Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end consulting 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.

Any statements made in this release that are not based on historical fact are forward-looking statements. Any forward-looking statements made in this release represent management’s best judgment as to what may occur in the future. However, Tetra Tech’s actual outcome and results are not guaranteed and are subject to certain risks, uncertainties and assumptions ("Future Factors"), and may differ materially from what is expressed. For a description of Future Factors that could cause actual results to differ materially from such forward-looking statements, see the discussion under the section "Risk Factors" included in the Company’s Form 10-K and Form 10-Q filings with the Securities and Exchange Commission.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260722644583/en/

Jim Wu, Investor Relations

Charlie MacPherson, Media & Public Relations

(626) 470-2844