Berks Nature, Berks County

Blue Mountain Eagle Climbing Club, Berks County

Bowman’s Hill Wildflower Preserve, Bucks County

Friends of Silver Lake Nature Center, Bucks County

Friends of the Wissahickon, Philadelphia County

Green Lane Park, Montgomery County

Green Valleys Watershed Association, Chester County

John James Audubon Center at Mill Grove, Montgomery County

Lancaster County Conservancy, Lancaster County

Lancaster County Parks, Lancaster County

Longwood Gardens, Chester County

Let’s Go Outdoors, Philadelphia County

Mt. Cuba Center, Hockessin, Delaware

Pennsylvania Horticultural Society, Philadelphia County

Perkiomen Watershed Conservancy, Montgomery County

Renfrew Institute, Franklin County

Riverbend Environmental Education Center, Montgomery County

Strawberry Hill Nature Preserve, Adams County

The Land Conservancy for Southern Chester County (TLC), Chester County