Tetra Tech is Leading with Science® to deliver innovative solutions for its clients’ most challenging water problems around the world. In 2023 Engineering News-Record (ENR) ranked Tetra Tech #1 in Water in its “Top 500 Design Firms” issue for the 20th year in a row. Tetra Tech also maintained the #4 spot out of 500 firms in the 2023 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, sustainable infrastructure, renewable energy, and international development challenges.

Tetra Tech's 2023 rankings include:

  • #4 in Top 500 Design Firms
  • #1 in Water (20th year in a row)
  • #2 in Sewer and Waste
  • #3 in Hazardous Waste
  • #4 in International Markets
  • #8 in General Building
  • #10 in Power

View Tetra Tech’s company awards.