Tetra Tech is a leading provider of consulting and engineering services.

Tetra Tech supports government and commercial clients by providing innovative solutions to complex problems focused on water, environment, infrastructure, resource management, energy, and international development. With 27,000 associates worldwide, Tetra Tech's capabilities span the entire project life cycle.


Tetra Tech's capabilities extend beyond the traditional engineering and environmental disciplines, encompassing all phases of environmental management and remediation, from initial investigation through site closure.

Resilient Infrastructure

Tetra Tech's proven approach and innovative techniques maximize value for private and public infrastructure projects including green buildings, water treatment plants, ports, harbors, roads, and bridges.

Resource Management

With expertise in all areas of the natural resource spectrum, Tetra Tech offers a fully integrated range of environmental, engineering, and construction solutions for mining, oil and gas, and industrial process.

International Development

Tetra Tech creates practical, sustainable, and environmentally responsible solutions to address the world’s most complex challenges.

Solid Waste Solutions

Tetra Tech provides high-end, integrated solid waste solutions for public and private clients.

High Performance Buildings

Tetra Tech provides high-end, innovative consulting and engineering design to create healthy and sustainable buildings.