| Massachusetts Urban Conservancy IncEasthampton | Form 990-N | No figure |
| Friends of Winthrop Lake IncLexington | Form 990-N | No figure |
| Solar Bridge Fund IncNeedham | Form 990-N | No figure |
| Poweroptions ConnectBoston | Form 990-N | No figure |
| Barnstable Ponds CoalitionMarstons Mills | Form 990-N | No figure |
| Zentrust IncDuxbury | Form 990-N | No figure |
| Rocky Pond AssociationBoylston | Form 990-N | No figure |
| North Shore Pollinator Project IncSalem | Form 990-N | No figure |
| Project MerrimackLowell | Form 990-N | No figure |
| Cape Cods Trees for TomorrowFalmouth | Form 990-N | No figure |
| Cape Climate Action IncWest Yarmouth | Form 990-N | No figure |
| Garden Club Federation of Massachusetts IncBoxford | Form 990-N | No figure |
| The Boston Birding Festival CorporationPittsfield | Form 990-EZ | $0FY2025 |
| Garden Club Federation of Massachusetts IncLakeville | Form 990-N | No figure |
| Its West Springfield IncWest Springfield | Form 990-N | No figure |
| Society of Commercial ArboricultureSpencer | Form 990-N | No figure |
| Friends of Forge Pond Association IncLittleton | Form 990-N | No figure |
| East Bridgewater Community GardensEast Bridgewater | Form 990-N | No figure |
| True Blue Racing IncFalmouth | Form 990-N | No figure |
| Garden Club Federation of MassachusettsSouth Hamilton | Form 990-N | No figure |
| Lake Attitash Association IncAmesbury | Form 990-N | No figure |
| North Shore Nature Programs IncGeorgetown | Form 990-N | No figure |
| Northeast Energy Efficiency and Electrification Institute IncTyringham | Form 990-N | No figure |
| Friends of Wellfleet PondsWellfleet | Form 990-N | No figure |
| Eco Bio Diversity IncNewton | Form 990-N | No figure |
| Friends of Millbury Nature Trails IncMillbury | Form 990-N | No figure |
| Friends of Trout Brook IncDover | Form 990-N | No figure |
| Uxbridge Three River Watershed Project IncUxbridge | Form 990-N | No figure |
| Monterey Native Plant GroupMonterey | Form 990-N | No figure |
| Moose Pond Community Garden IncFramingham | Form 990-N | No figure |
| Rumney Marsh Conservancy IncRevere | Form 990-N | No figure |
| Lake Quinsigamond Watershed Association IncShrewsbury | Form 990-N | No figure |
| Garden Club Federation of Massachusetts IncMiddleton | Form 990-N | No figure |
| Garden Club Federation of Massachusetts IncAndover | Form 990-N | No figure |
| Nahant S W I M IncNahant | Form 990-N | No figure |
| Commonskeepers IncWellfleet | Form 990-N | No figure |
| Beverly Conservation Land TR IncBeverly | Form 990-N | No figure |
| Garden Club Federation of Massachusetts IncNorth Dartmouth | Form 990-N | No figure |
| Meadow City Conservation CoalitionNorthampton | Form 990-N | No figure |
| Beyond Ktaadn IncNew Salem | Form 990-N | No figure |
| Trustees of Sandwich Beaches IncEast Sandwich | Form 990-N | No figure |
| Climate Change Action Brookline IncBrookline | Form 990-N | No figure |
| Water Economics Project IncBeverly | Form 990-N | No figure |
| Needham Land Trust IncNeedham | Form 990-N | No figure |
| Full Circle EarthBeverly | Form 990-N | No figure |
| Garden Club Federation of Massachusetts IncBurlington | Form 990-N | No figure |
| Garden Club Federation of Massachusetts IncStoneham | Form 990-N | No figure |
| Island Eats MV IncChilmark | Form 990-N | No figure |
| Andover Trail Committee IncAndover | Form 990-N | No figure |
| Quincy Parks Conservancy IncQuincy | Form 990-N | No figure |