- Association to Preserve Cape Cod
- Association of Massachusetts Wetland Scientists
- Barnstable Clean Water Coalition
- Biodiversity Works
- Buzzards Bay Coalition
- Cape Cod Commission
- Friends of Ellisville Marsh
- Harvard Forest
- Herring Ponds Watershed Association
- Hitchcock Center for the Environment
- Island Foundation
- Jones River Watershed Association
- Manomet
- Mass Audubon
- Mass Audubon Ecological Extension Services
- Massachusetts Division of Ecological Restoration
- Massachusetts Department of Conservation and Recreation
- Massachusetts Division of Fisheries and Wildlife
- Massachusetts Energy & Environmental Affairs
- MIT Sea Grant
- Nantucket Conservation Foundation
- National Park Service
- Natural Heritage and Endangered Species Program
- Neponset River Watershed Association
- New England Coastal Wildlife Alliance (NECWA)
- NOAA
- The Polly Hill Arboretum
- Provincetown Center for Coastal Studies
- Roger Williams Park Zoo
- Tidmarsh Farms
- Union of Concerned Scientists
- U.S. Fish and Wildlife Service
- Wampanoag Tribe of Gay Head
- Waquoit Bay National Estuarine Research Reserve
- Weir River Watershed Association
- Woods Hole Oceanographic Institute
- Woodwell Climate Research Center