United States
Tetra Tech’s presence in the United States has grown from a single office in Pasadena, California, in 1966 to a nationwide network of more than 300 offices.
We provide high-end, comprehensive engineering and consulting services for federal agencies, state and local governments, the military, and commercial clients throughout the United States and Puerto Rico.
With offices in every state, Tetra Tech brings local knowledge and technical expertise to every project. Whether an office houses 20 team members or 200, we maintain a broad and accessible presence to meet the unique needs of our clients. Our teams are at the forefront of innovation, spearheading some of Tetra Tech’s most advanced software and technology solutions to drive progress across the water, environment, and sustainable infrastructure sectors.
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