Tetra Tech is Leading with Science® to deliver innovative solutions for its clients’ most challenging water problems around the world. In 2019 Engineering News-Record (ENR) ranked Tetra Tech #1 in Water in its “Top 500 Design Firms” issue for the 16th year in a row. ENR also ranked Tetra Tech #5 out of 500 firms in the 2019 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 2019 rankings include:

  • #5 in Top 500 Design Firms
  • #1 in Water (16th year in a row)
  • #2 in Sewer and Waste
  • #5 in Hazardous Waste (2nd year in a row)
  • #8 in Power (2nd year in a row)
  • #6 in International Markets
  • #10 in Manufacturing
  • #14 in Green Buildings
  • #19 in General Building

View Tetra Tech’s company awards.