- American Ref-Fuel Company
- Albert Einstein College of Medicine of Yeshiva University
- Astoria Generating Station, LP (US Power Gen)
- Brooklyn Navy Yard Cogeneration Partners, LP
- Consolidated Edison Company of New York
- E.E. Cruz Co. Inc.
- General Electric Power Systems
- Goldman Copeland Associates
- J. Fletcher Creamer & Son, Inc.
- KeySpan Corporate Services, LLC
- Koch Skanska Inc.
- Lucent Technologies
- Metropolitan Transit Authority
- Montenay Islip, Inc.
- Momentive Performance Material
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- New York City Department of Environmental Protection
- New York City Transit Authority
- New York Power Authority
- Passaic Valley Sewerage Commission
- Perini Corporation
- Port Authority of NY and NJ
- PSEG Power, LLC
- Schiavone Construction Company
- Shaw Stone & Webster Construction, Inc.
- Skanska USA Civil Northeast, Inc.
- Skanska USA Buildings, Inc.
- The Hemmerdinger Corporation
- Turner Construction Co.
- U.S. Filter Operating Services
- Waste Management of NY, LLC
- Westchester RESCO Company, LP
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