African Wildlife Foundation

American Farmland Trust

American Forests

American Rivers

Beyond Pesticides/NCAMP

Center for Health,
Environment and Justice

Clean Water Fund

Conservation Fund

Conservation International

Defenders of Wildlife

Earth Day Network

Earthjustice

Environmental and Energy
Study Institute

Environmental Defense Fund

Environmental Law
Institute

Friends of the Earth

Izaak Walton League of America

Jane Goodall Institute for Wildlife Research, Education, and Conservation

Land Trust Alliance

National Audubon Society

National Parks Conservation Association

National Wildlife Federation

Natural Resources Defense Council

Nature Conservancy

Ocean Conservancy

Peregrine Fund

Pesticide Action Network

Public Research Education Fund Inc.

Rails-to-Trails Conservancy

Rainforest Alliance

Rocky Mountain Institute

Sierra Club Foundation

Student Conservation
Association

Surfrider Foundation

Trust for Public Land

Union of Concerned Scientists

Wilderness Society

Wildlife Conservation Society

World Wildlife Fund