- Blithewold Mansion, Gardens, and Arboretum
- Garden in the Woods, The Native Plant Trust
- The Fells – John Hay National Wildlife Refuge
- The Norcross Wildlife Sanctuary
- Tower Hill Botanic Garden
- Audubon Society, Rhode Island
- Nature Conservancy, Rhode Island
- Narragansett Bay National Estuarine Research Reserve
- Roger Williams Park & Zoo
- Roger Williams Park Botanical Center
- US Fish & Wildlife, Rhode Island
- Norman Bird Sanctuary
- Newport Preservation Society
- Rhode Island Parks & Beaches
- Southside Community Land Trust
- Apeiron Institute for Environmental Living
- Rhode Island Tree Council
- Richard Haley Native Plant Wildlife Gardens in Hampton, CT
