Environmental Groups
- Acadia Center
- Alaska Conservation Alliance
- Appalachian Center for the Economy and the Environment
- Belmont Clean Energy
- Citizens Awareness Network
- Citizens' Climate Lobby
- Citizen's Council for Clean Air
- Citizens' Environmental Coalition
- Citizens Maine
- Clean Air Task Force
- Clean Water Action Delaware Valley
- Clean Water Fund, Inc.
- Clean Wisconsin
- Climate and Energy Project
- Climate Counts
- Coalition Helping to Organize a Kleaner Environment (CHOKE)
- Communities for a Better Environment
- Connecticut Climate Coalition
- Connecticut Fund for the Environment
- Conservation Council of New Brunswick
- Conservation Law Foundation
- Dakota Resource Council
- Earthjustice
- Environmental Defense
- Environment, Economics and Society Institute
- Environmental Law and Policy Center
- Friends of the Earth
- Global Resource Action Center for the Environment (GRACE)
- GreenLaw
- Greenpeace
- Harpeth River Watershed Association
- Healthlink
- Idaho Conservation League
- Izaak Walton League of America
- Massachusetts Audubon Society
- Massachusetts Citizens for Safe Energy
- Massachusetts Climate Action Network
- Minnesota Center for Environmental Advocacy
- National Commission on Energy Policy
- Natural Resource Council of Maine
- Natural Resources Defense Council
- New York/New Jersey Baykeeper
- North Carolina WARN
- Northern Forest Center
- Northern Plains Resource Council
- Ohio Environmental Council
- Peace Valley Environment Association
- Plains Justice
- Pollution Probe
- Project for Sustainable FERC Energy Policy
- Redwood Alliance
- RENEW Northeast
- Renewable Energy Policy Project
- Riverkeeper, Inc.
- Sierra Club
- Sierra Club - British Columbia Chapter
- Sierra Club - Eastern Canada Chapter
- Soundkeeper- Long Island
- Southern Alliance for Clean Energy
- Southern Environmental Law Center
- Stockholm Environment Institute
- Western Clean Energy Campaign
- Western Grid Group
- Western Resource Advocates
- Union of Concerned Scientists
- Utah Clean Energy
- Valley Watch
- Vermont Natural Resources Council
- WWF-UK
Foundations
- American Clean Skies Foundation
- Chorus Foundation
- Council of Michigan Foundations
- Energy Foundation
- Heinz Foundation
- Hewlett Foundation
- Hudson River Foundation
- Kentucky Environmental Foundation
- Rockefeller Family Fund
- Leighty Foundation
- STAR Foundation
- Walter & Duncan Gordon Foundation
Other Non-Governmental Organizations
- AARP
- Advanced Energy Economy Institute
- Alaska Public Interest Research Group
- Alternatives for Community and Environment
- American Association for Justice
- American Council for an Energy-Efficient Economy
- American Public Power Association
- Appliance Standards Awareness Project
- ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning)
- BC Sustainable Energy Association
- California Institute for Energy and Environment
- Cambridge Energy Alliance
- Campaign for Ratepayer Rights
- Cape and Island Self-Reliance Corporation
- Cape Light Compact
- Center for Climate Strategies
- Center for Rural Affairs
- Ceres
- Citizen's Action Coalition of Indiana
- Civil Society Institute
- The Energy Consortium
- Coastal Enterprises, Inc.
- Consumers Union
- The E4 Group
- Energy Future Coalition
- Environmental Law and Justice Clinic, Golden Gate Law School
- Global Development and Environmental Institute, Tufts University
- Gulf States Renewable Energy Industries Association
- Illinois Citizens Utility Board
- Illinois Public Interest Research Group
- Indian Point Safe Energy Coalition (IPSEC)
- Keystone Energy Efficiency Alliance
- Lake Michigan Air Directors Consortium
- Low-Income Energy Affordability Network
- Maryland PIRG
- Massachusetts Avoided Energy Supply Components Group
- Massachusetts Energy Consumer Alliance
- Massachusetts Public Interest Research Group
- Midwest Renewable Energy Tracking System (M-RETS)
- Minnesotans for an Energy Efficient Economy
- Missouri Solar Energy Industries Association
- National Association of State PIRGs
- National Home Performance Council
- National Regulatory Research Institute
- New Energy Economy
- New England States Committee on Electricity
- New York Public Interest Group
- New York State Energy Research & Development Authority
- Northeast Energy Efficiency Partnerships, Inc. (NEEP)
- Nuclear Information and Resource Service
- Oklahoma Sustainability Network
- Ohio Citizen Action
- Opportunity Council, The Energy Project
- Pace Energy Project
- Public Citizen
- Regulatory Assistance Project
- Renewable Energy Technology and Environment Coalition
- Townline Association, Inc.
- TURN (The Utility Reform Network)
- Utility Consumers' Action Network (UCAN)
- Western Grid Group
- Wind on the Wires
- Wisconsin Citizens Utility Board
- Vermont Energy Investment Corporation
