ENR 2025 Top 200 Environmental Firms
Times were good last year for most ENR Top 200 Environmental Firms in the closing months of Biden-era funding, policy and legislative priorities. Abrupt shifts from a less supportive new administration portend a different outcome for 2025, but companies remain confident markets will hold—and are watching the actions of leaders outside of Washington.
Please email ENRT200env@enr.com to be added to the Top 200 Environmental Firms email list for the 2025 survey filing, or to ask questions. The approximate Top 200 eligibility floor is $20 million in environmental services revenue for the prior year. Please don’t file if your total is below that figure.
More detailed information on ENR's Top 200 Environmental Firms:
View complete 2025 list, with full market analysis
Current Top 200 Environmental Firms Story:
ENR Top 200 Environmental Firms: Facing New Realities
Click below for earlier editions:
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Asterisks (**) indicate firm was not ranked on the 2024 Top 200 list.
Type of Firm: Designation based on the largest % of 2024 environmental services revenue in categories described below. Multiple listings appear if the largest % of revenue is evenly split between two or more categories or is within 5%.
DES Engineering and/or design; CSL Consulting and/or studies; CON Construction, contracting and/or remediation; CM-PM Construction management and/or program management; EQP Equipment or device manufacture; OPS Contract operations; R&D Technology and/or research and development, OTH Services not already designated.
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ENR 2025 Top 200 Environmental Firms
| RANK 2025 | RANK 2024 | FIRM | TYPE OF WORK |
|---|---|---|---|
| 1 | 1 | VEOLIA SA, Paris, France | OPS |
| 2 | 3 | Larsen & Toubro Ltd., Mumbai, India | CON |
| 3 | 2 | AECOM, Dallas, Texas | CSL |
| 4 | 5 | WSP Global inc., Montreal, Quebec, Canada | CSL |
| 5 | 6 | Clean Harbors, Norwell, Mass. | OPS-CM-PM- |