National Audubon Society
Izaak Walton League of America
League of Conservation Voters
National Resources Defense Council
National Parks and Conservation Association
The Nature Conservancy
National Wildlife Federation
The Surfrider Foundation
The Wlderness Society
American Farmland Trust
Land Trust Alliance
Foothills Land Conservancy
Southern Appalachian Highlands Conservancy
North Cascades Conservation Council
American Coastal Coalition
Save America's Forests
The Zero Circles Project
National Wetlands Conservation Alliance
National Estuary Program
The Conservation Fund