Alaska Coalition 

Alaska Wilderness League

Audubon Society (local and state chapters) 

Blue Earth Alliance 

The Conservation Alliance 

Conservation Northwest 

Defenders of Wildlife

Earth Justice

Glen Canyon Institute (GCI)

Gwich’in Steering Committee

League of Conservation Voters (LCV)

Manomet Center for Conservation Sciences

National Park Conservation Association, Washington, DC

National Wildlife Federation

Natural Resources Defense Council (NRDC)

North American Nature Photography Association (NANPA)

North Cascades Institute

Republicans for Environmental Protection

Sierra Club

Society for Conservation Biology

Trust for Public Land

The Wilderness Society

The Wildlife Conservation Society

Wildsight 

World Wildlife Fund (WWF) 

Yellowstone to Yukon Conservation Initiative