National Nonprofit Partner List
- Alliance for Community Trees
- American Forests
- American Hiking Society – National Trails Day
- American Park Network
- Arbor Day Foundation
- Association of Partners for Public Lands (APPL)
- Audubon
- Boys and Girls Clubs of America
- Boy Scouts of America
- California Coastal Cleanup
- Classroom Earth
- Civilian Conservation Corps - CCC Legacy
- City Year
- Earth Day Network
- Field and Stream
- Girl Scouts of the USA
- Get to Know
- Great Old Broads for Wilderness
- International Mountain Bicycling Association (IMBA)
- Izaak Walton League of America
- KaBOOM!
- Keep America Beautiful
- Leave No Trace Center for Outdoor Ethics
- National 4-H Council
- National Association of Counties
- National Association of County Park and Recreation Officials
- National Association of State Park Directors
- National Environmental Education Week
- National Forest Foundation
- National Parks Conservation Association (NPCA)
- National Recreation and Parks Association (NRPA)
- National Wildlife Federation
- Outdoor Channel
- Partners in Resource Education – Hands on the Land
- Preserve America's Waterways
- Project Learning Tree
- Public Land Foundation
- Service Nation/ Be the Change, Inc.
- Sierra Club
- Student Conservation Association
- The Corps Network
- Trout Unlimited
- Trust for Public Land
- United We Serve/Serve.gov
- Water Environment Foundation (World Water Monitoring Day)
- Wildlife Habitat Council