Complex World, Clear Solutions™

Tetra Tech is a leading provider of consulting, engineering, program management, construction management, and technical services. The Company supports government and commercial clients by providing innovative solutions focused on water, environment, infrastructure, resource management, energy, and international development. With 16,000 employees worldwide, Tetra Tech's capabilities span the entire project life cycle.

Who We Are

Who we are

Since 1966, Tetra Tech has been leading with science to address our clients’ most complex needs. Our mission is to be the premier worldwide consulting, engineering, and construction firm.

Our Approach

Our Approach

At Tetra Tech, we seek clear sustainable solutions that improve the quality of life. We embrace safety and sustainability in our business and operations.

Our Global Presence

Our Global Presence

Tetra Tech has 400 offices worldwide. We have the resources and global presence to complete today’s most demanding projects.

What We've Done

What we've done

Tetra Tech is a full-service company with a global reach in the areas of water, environment, infrastructure, resource management, energy, and international development. Read about our projects and company recognition.