New York/New Jersey
- Blue Ocean Institute
- Central Park Conservancy
- Environmental Defense Fund
- Green Guerrillas
- Joint Oceanographic Institutions
- Lower Manhattan Development Corp.
- Mountain Institute
- Pinchot Institute for Conservation
- Rainforest Alliance
- Rainforest Foundation
- RiverKeeper
- West Harlem Environmental Action
- Wildlife Conservation Society
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Washington, DC Metro Area
- Amazon Alliance
- Civil War Preservation Trust
- Conservation International
- EarthRights International
- Ecological Society of America
- Galapagos Conservancy
- Kaboom!
- Ocean Conservancy
- Sustainable Buildings Industry Council
- Washington Animal Rescue League
- WildAid
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