Access Fund

America The Beautiful Fund

American Discovery Trail Society

American Fisheries Society

American Hiking Society

American Whitewater

Antarctica and Southern Ocean Coalition

Appalachian Trail Conservancy

Archaeological Conservancy

Boone & Crockett Club

Center for Biological Diversity

Chesapeake Bay Foundation, Inc.

Civil War Trust

Clean Water for Healthy Americans

Climate Reality Project

Conservation & Preservation Charities of America

Conservation and Protection of Public Lands

Elephant and Whale Protectors

Equine Land Conservation Resource

Filipino American Rural Mission

Gettysburg Foundation

Green Empowerment

Greenpeace Fund

Hawk Mountain Sanctuary Association

Jewish National Fund (Keren Kayemeth LeIsrael), Inc.

National Marine Sanctuary Foundation

National Park Foundation

National Park Trust

National Wild Turkey Federation, Inc.

NatureIsrael

Negative Population Growth

NumbersUSA Education and Research Foundation

Ocean Foundation

Pacific Crest Trail Association

Pheasants Forever

Population Institute

Project AWARE Foundation

Public Employees for Environmental Responsibility

Rainforest Partnership

Rainforest Trust

RARE

Rocky Mountain Elk Foundation

Save America's Forests Fund

Soil and Water Conservation Society

Solar Electric Light Fund

Student Conservation Association, The

Take Me Fishing

The Coral Reef Alliance

Theodore Roosevelt Conservation Partnership, Inc.

Tread Lightly!, Inc.

Trout Unlimited

Wild Salmon Center

Wildlife Conservation Fund of America

Wildlife Forever

Yellowstone Coalition: Protecting the Lands, Waters, and Wildlife

Yellowstone Forever

Yosemite Conservancy