| Garden Club of America | NY |
| Fyke Nature Association | NJ |
| Friends of the Wisconsin Wolf & Wildlife | WI |
| Friends of the Sea Otter | CA |
| Friends of the San Juans | WA |
| Friends of the Rivers of Virginia | VA |
| Friends of the Earth | DC |
| Friends of the Bay | NY |
| Friends of Swainson's Hawk | CA |
| Friends of Nevada Wilderness | NV |
| Friends of Merrymeeting Bay | ME |
| Friends of Buttonhook Forest Inc | NY |
| Friends of Blackwater | WV |
| Friends of Ballona Wetlands | CA |
| Friends of Animals | CT |
| Foundation for Global Sustainability | TN |
| Forest Carbon Coalition | OR |
| Fly Fishers International | MT |
| Florida Keys Environmental Coalition | FL |
| Florida Conservation Voters | FL |
| Florida Audubon | FL |
| Farallones Marine Sanctuary Association | CA |
| Episcopal Diocese of Maryland's Committee on the Environment | MD |
| Environmental Protection Information Center | CA |
| Environmental Law Society, Vermont Law School | VT |
