National Member Groups
- African Wildlife Foundation
- Alaska Conservation Foundation
- Alliance to Save Energy
- American Bird Conservancy
- American Farmland Trust
- American Forests
- American Rivers
- Bat Conservation International
- Beyond Pesticides
- Born Free USA
- Carbonfund.org Foundation
- CERES, Inc.
- Children’s Environmental Health Network
- Clean Water Fund
- Conservation International
- Defenders of Wildlife
- Earth Island Institute
- EARTH University Foundation
- Earthjustice
- Earthworks
- Environmental Defense Fund
- Environmental and Energy Study Institute
- Environmental Law Alliance Worldwide
- Environmental Law Institute
- Food & Water Watch
- Forest Stewardship Council – US
- Friends of the Earth
- Friends of the National Zoo
- Green Corps, Inc.
- HawkWatch International
- Izaak Walton League of America
- The Jane Goodall Institute for Wildlife Research, Education and Conservation
- Land Trust Alliance
- Leave No Trace Center for Outdoor Ethics
- National Aquarium
- National Audubon Society
- National Fish and Wildlife Foundation
- National Forest Foundation
- National Parks Conservation Association
- National Wildlife Federation
- Natural Resources Defense Council
- Nature Conservancy, The
- NatureServe
- Ocean Conservancy
- Oceana
- Peregrine Fund, The
- Restore America’s Estuaries
- Rocky Mountain Institute
- Scenic America
- The Sierra Club Foundation
- Surfrider Foundation
- The Trust for Public Land, The
- Union of Concerned Scientists
- Wilderness Society
- Wildlife Conservation Society
- World Wildlife Fund
- Xerces Society
- Yellowstone to Yukon Conservation Initiative