Trihydro Recognized Among Top U.S. Environmental Firms
  • ENR
  • Environmental
  • Engineering
  • 2019

Trihydro has again been ranked among the Engineering News-Record (ENR) Top Environmental Firms. Considered one of the industry benchmarks, ENR ranks its list of top 200 environmental firms nationally based their 2018 gross revenue associated with environmental services.  This year marks Trihydro’s 14th consecutive appearance on the prestigious list.  Debuting at 171 in 2006, Trihydro ranked 118 on the 2019 list.

Important contributions to Trihydro’s continued success in 2019 include geographic expansion through opening new offices in San Luis Obispo, California and Lawrenceville, Illinois, in addition to an expanded presence in Rodeo, California.  Staffed with project managers, engineers, geologists, biologists, and environmental scientists, the offices have enhanced Trihydro’s ability to serve clients with their environmental, engineering, air quality, water and wastewater, and health and safety project needs.

About ENR’s Top 200 List
ENR's list of the Top 200 Environmental Firms, published annually, provides a look at key players, based on prior year revenue, in the global environmental services market—in areas from hazardous and nuclear waste cleanup to environmental sciences and water-wastewater treatment facility design and construction. Ranking on this list has become a well-recognized indicator of success for environmental industry firms.  To learn more, visit ENR’s website (

Back to All News & Media

Trihydro tackles complex environmental engineering challenges with a core focus on specific markets. Our experience, expertise, and success at delivering through to project completion have earned us a reputation as one of the top environmental and engineering firms in the country.