Seattle, WA – Engineering News-Record has released its annual “Top 500 Design Firms” list, which ranks firms by revenue from design services performed in the previous year. This year, Parametrix was ranked No. 137, up one spot from 2025. Parametrix has been ranked in the top 500 design firms for over 25 years.
In 2025, Parametrix generated $228 million in design revenue, with the largest share in the transportation sector, followed by sewer/waste and water supply.
Some of the firm’s largest projects in the last year were the Interstate Bridge Replacement program, Sound Transit on-call services, King County Mouth of Duwamish program, Ada County Highway District Access to Opportunity, and Stewart Avenue Complete Streets in Las Vegas, NV.
“For over 25 years, Parametrix has been recognized among the top design firms. Thanks to our clients who trust us to help build vibrant, sustainable communities,” said Parametrix President and Chief Executive Officer, John Willis, PE.
About Parametrix
Parametrix is a 100-percent employee-owned consulting firm helping clients deliver resilient infrastructure, livable communities, and environmentally sustainable solutions. From offices across the United States, our team of engineers, planners, scientists, landscape architects, surveyors, project managers, and construction managers are helping our clients imagine what is possible and create tomorrow, together. Learn more at https://www.parametrix.com/