Allegheny Land Trust, Allegheny County
Blue Mountain Eagle Climbing Club/Rentschler Arboretum, Berks County
Bucks County Audubon Society, Bucks County
Capital Area Greenbelt Association, Dauphin County
Chesapeake Bay Foundation – Keystone 10 Million Trees Partnership, Susquehanna River Watershed
Donegal Trout Unlimited, Lancaster County
Green Valleys Watershed Association, Chester County
Longwood Gardens, Chester County
Let’s Go Outdoors, Philadelphia County
Nine Mile Run Watershed Association, Allegheny County
Pittsburgh Parks Conservancy, Allegheny County
Rhoneymeade, Inc, Centre County
Strawberry Hill Foundation, Inc, Adams County
Tree Pittsburgh, Allegheny County
Washington County Watershed Alliance, Washington County
Western Pennsylvania Conservancy, Allegheny County (also serving other PA Counties)
Wissahickon Restoration Volunteers, Philadelphia County