RES Ranks #13 in ENR’s 2025 Rankings for Top All-Environmental Firms

Recognition for Nature-based Solution Provider Represents an Industry Milestone

Engineering News-Record has ranked Resource Environmental Solutions (RES) as #13 among the Top 30 All-Environmental Firms in its annual rankings of environmental engineering firms.

“The inclusion of RES in ENR’s rankings reflects the recognition of the vital role ecological restoration plays in solving today’s environmental challenges,” said Roger Wiederkehr, RES president and CEO. “Every ecological solution RES delivers is about so much more than meeting a client’s compliance requirements; it’s about creating a resilient ecosystem that provides permanent ecological uplift. I’m proud of the integrated solutions our teams are delivering across the country, and being included in these rankings affirms the importance of the green infrastructure RES is creating.”

ENR rankings are based on the prior year’s revenues. RES positions within the rankings include:

Top 200 Environmental Firms (#72)

Top 30 All-Environmental Firms (#13)

This recognition from ENR highlights RES’ impact in the environmental sector, with projects that restore resilient landscapes, improve water quality, and strengthen natural infrastructure in communities nationwide. This is the second year RES has ranked in ENR’s Top 200 list.