A-Team for Wildlife

African Conservation Foundation

African Wildlife Defence Force

African Wildlife Foundation 

Amphibian and Reptile Conservation

Animal Diversity Web

ARKive

Association of Zoos and Aquariums

Defenders of Wildlife

International Wolf Center

National Audubon Society

National Geographic

National Park Service

National Wildlife Federation 

Natural Resources Defense Council

Nature Conservancy 

Ocean Conservancy 

Project Aware

Rainforest Action Network 

Rainforest Alliance 

Roots & Shoots

School for Field Studies

Shark Savers

Sierra Club

Stand for Trees

The IUCN Red List of Threatened Species

The Jane Goodall Institute

The Wildlife Society

The Wilderness Society

U.S. Fish and Wildlife Service

WildAid

WildEarth Guardians

Wildlife Alliance

Wildlife Conservation Society

Wild Migration

World Wildlife Fund