- American Horse Council & American Horse Council Foundation
- America Outdoors
- American Prairie
- American Rivers
- Backcountry Hunters and Anglers
- Conservation Lands Foundation
- Ducks Unlimited
- Hispanic Access Foundation
- League of Conservation Voters
- National Parks Conservation Association
- National Wild Turkey Federation
- Nature is Nonpartisan
- Outdoor Alliance
- Outdoor Recreation Roundtable
- PeopleForBikes
- Pheasants Forever and Quails Forever
- Protect Our Winters
- RV Dealers Association
- Sierra Club
- Society of Outdoor Recreation Professionals
- The Conservation Alliance
- The Corps Network
- The Nature Conservancy
- Theodore Roosevelt Conservation Partnership
- The Wilderness Society
- Trust for Public Lands
- Trout Unlimited
- VF Corporation
- Western Conservation Foundation
- Western Landowners Alliance