Tetra Tech is Leading with Science® to deliver innovative solutions for its clients’ most challenging water problems around the world. In 2020 Engineering News-Record (ENR) ranked Tetra Tech #1 in Water in its “Top 500 Design Firms” issue for the 17th year in a row. ENR also ranked Tetra Tech #4 out of 500 firms in the 2020 Design Firms list.

Tetra Tech achieves consistently high ENR rankings thanks to the hard work, dedication, and passion of its teams of industry-leading experts. Their knowledge spans all phases of the water cycle, combining state-of-the-art techniques and demonstrated best practices to help protect public health and improve quality of life.

We thank our clients for their continued partnership and the opportunity to create smart solutions for complex water, environmental, infrastructure, resource management, energy, and international development challenges.

Tetra Tech's 2020 rankings include:

• #4 in Top 500 Design Firms

• #1 in Water (17th year in a row)

• #2 in Sewer and Waste

• #4 in International Markets

• #5 in Hazardous Waste (3rd year in a row)

• #9 in Manufacturing

• #10 in Power

• #18 in General Building

View Tetra Tech’s company awards.