| 20/20 Vision Education Fund |
2373 |
| Access Fund |
2361 |
| American Association for State and Local History |
2376 |
| American Canoe Association |
2349 |
| American Discovery Trail Society |
2350 |
| American Fisheries Society |
2340 |
| American Hiking Society |
2301 |
| American Historical Association |
2377 |
| American Oceans Campaign |
2362 |
| American Solar Energy Society |
2341 |
| American Whitewater Affiliation |
2302 |
| American Wildlands |
2363 |
| American Youth Hostels |
2331 |
| Appalachian Trail Conference |
2303 |
| Bat Conservation International, Inc. |
2323 |
| Carrying Capacity Network |
2342 |
| Center for International Environmental Law |
2343 |
| Center for Resource Economics |
2364 |
| Center for Watershed Protection |
2375 |
| Chesapeake Bay Foundation |
2324 |
| Civil War Preservation Trust |
2332 |
| Conservation & Preservation Charities of America |
2300 |
| Entomological Foundation |
2352 |
| Floresta Tropical Reforestation Fund |
2304 |
| Friends of the National Parks at Gettysburg, Inc. |
2353 |
| Greater Yellowstone Coalition |
2325 |
| Green Empowerment |
2365 |
| Green Seal |
2305 |
| Hancock Shaker Village |
2354 |
| International Crane Foundation, Inc. |
2326 |
| International Wilderness Leadership (WILD) Foundation |
2307 |
| Leave No Trace |
2366 |
| Mote Marine Laboratory |
2356 |
| National Aquarium in Baltimore, Inc. |
2357 |
| National Association of Conservation Districts |
2336 |
| National Association of Service and Conservation Corps |
2367 |
| National Environmental Education & Training Foundation |
2337 |
| National Park Foundation |
2309 |
| National Park Trust |
2358 |
| National Trust for Historic Preservation |
2327 |
| Negative Population Growth |
2310 |
| North American Association for Environmental Education |
2311 |
| North Cascades Institute |
2339 |
| Orangutan Foundation International |
2369 |
| Partners in Parks |
2359 |
| Pheasants Forever |
2374 |
| Population Institute |
2314 |
| Population-Environment Balance |
2345 |
| Public Employees for Environmental Responsibility |
2370 |
| Public Lands Foundation |
2346 |
| River Network |
2371 |
| Rocky Mountain Elk Foundation |
2329 |
| Save America's Forests Fund |
2316 |
| Soil and Water Conservation Society |
2330 |
| Solar Electric Light Fund |
2348 |
| Trees, Water and People |
2378 |
| Trout Unlimited |
2372 |
| Trustees for Alaska |
2318 |
| WaterPartners International |
2381 |
| Wildlife Center for Preventing Roads |
2380 |
| Wildlife Conservation Fund of America |
2382 |
| Wildlife Habitat Council |
2319 |
| Wildlife Preservation Trust International |
2347 |
| World Parks Endowment |
2320 |
| Yellowstone Park Foundation |
2379 |
| Yosemite Fund |
2321 |