| Farm TomorrowGouldsboro | Form 990-EZ | $48,186FY2025 |
| Society for Human EcologyBar Harbor | Form 990-N | No figure |
| Bioregional Conservacy & Reclamation TRUnity | Form 990-N | No figure |
| Peaks Island Land PreservePeaks Island | Form 990-N | No figure |
| Sanford-Springvale Mousam Way Land TRSanford | Form 990-N | No figure |
| Louds Island ConservancyBremen | Form 990-N | No figure |
| Garden Club Federation of Maine IncCamden | Form 990-N | No figure |
| Boothbay Region Garden Club IncBoothbay | Form 990-N | No figure |
| Protect Ancient ForestsCamden | Form 990-N | No figure |
| Stewardship Education AllianceCamden | Form 990-N | No figure |
| Friends of the Kennebec River Rail Trail IncAugusta | Form 990-N | No figure |
| Maine Guides Education FundHermon | Form 990-N | No figure |
| Friends of Tim PondEustis | Form 990-N | No figure |
| Save Our Shores MaineWells | Form 990-EZ | $15,588FY2025 |
| Almanac Region Land TrustSpringfield | Form 990-N | No figure |
| Bauneg Beg Lake Association IncNorth Berwick | Form 990-N | No figure |
| Dark Sky MaineBlue Hill | Form 990-N | No figure |
| Friends of Lower and Middle Lead Mountain PondsHampden | Form 990-N | No figure |
| Hedgehog Mountain Land Trust IncEagle Lake | Form 990-N | No figure |
| Garden Club Federation of Maine IncFalmouth | Form 990-N | No figure |
| Tacoma Lakes AssociationLitchfield | Form 990-N | No figure |
| Cliff Island Coporation for Athletics & Conservation EducationCliff Island | Form 990-N | No figure |
| Howard Pond Preservation AssociationHanover | Form 990-N | No figure |
| Time & Tide Resource Conservation and Development AreaAugusta | Form 990-N | No figure |
| Kennebec Valley Garden ClubAugusta | Form 990-N | No figure |
| Garden Club Federation of MaineEliot | Form 990-N | No figure |
| Physicians for Social Responsibility IncAugusta | Form 990-N | No figure |
| Sabbath Day Lake AssociationGray | Form 990-N | No figure |
| The Ellsworth Garden ClubEllsworth | Form 990-N | No figure |
| Property Owners of Lovewell Pond AssociationFryeburg | Form 990-N | No figure |
| Pleasant River Fish and Game Conservation Association IncColumbia Falls | Form 990-N | No figure |
| Garden Club Federation of Maine IncBuxton | Form 990-N | No figure |
| Friends of Walker PondBrooksville | Form 990-N | No figure |
| Friends of Rachel Carson National Wildlife RefugeKennebunk | Form 990-N | No figure |
| Friends of Wilson LakeWilton | Form 990-N | No figure |
| Friends of the Presumpscot RiverWestbrook | Form 990-N | No figure |
| Forest Lake AssociationGray | Form 990-N | No figure |
| Penobscot River and Bay InstituteMilford | Form 990-N | No figure |
| Highland Lake AssociationWindham | Form 990-N | No figure |
| Garden Club Federation of Maine IncScarborough | Form 990-N | No figure |
| Range Ponds AssociationPoland Spring | Form 990-N | No figure |
| Clary Lake AssociationWhitefield | Form 990-N | No figure |
| China Region Lakes AllianceChina Village | Form 990-N | No figure |
| Friends of the Boundary Mountains IncFarmington | Form 990-N | No figure |
| East Pond AssociationSmithfield | Form 990-N | No figure |
| Seed Tree IncStockton Springs | Form 990-N | No figure |
| Friends of Craig Brook IncorporatedEast Orland | Form 990-N | No figure |
| Maine Materials ExchangeFreeport | Form 990-N | No figure |
| Garden Institute at Merry GardensCamden | Form 990-N | No figure |
| Forest Ecology NetworkLexington Twp | Form 990-N | No figure |