| Friends of the Weston Public Library IncorporatedWeston | Form 990-EZ | $71,240FY2025 |
| American Inns of Court FoundationBoston | Form 990-EZ | $71,070FY2025 |
| Jamaica Plain Regan Youth LeagueJamaica Plain | Form 990-EZ | $70,937FY2025 |
| Aspect IncBrookline | Form 990-EZ | $70,550FY2025 |
| American Air Mail SocietyWest Chatham | Form 990-EZ | $70,526FY2025 |
| Joshua-Eaton School Parent Teachers Organization IncReading | Form 990-EZ | $70,258FY2025 |
| Friends of Winthrop Elementary School IncSouth Hamilton | Form 990-EZ | $70,083FY2025 |
| 1717 Meetinghouse Foundation IncWest Barnstable | Form 990 | $69,957FY2025 |
| Society of Saint Vincent de Paul in the Archdiocese of BostonKingston | Form 990-EZ | $69,943FY2025 |
| Friends of Lunenburg Public LibraryLunenburg | Form 990 | $69,805FY2025 |
| General Electric Company Empls Good Neighbor Fund of the River WorksLynn | Form 990-EZ | $69,759FY2026 |
| West Newbury PTOWest Newbury | Form 990-EZ | $69,629FY2025 |
| South Elementary School PTAPlymouth | Form 990-EZ | $69,232FY2025 |
| North Central Massachusetts Chamber Foundation IncorporatedFitchburg | Form 990 | $68,805FY2025 |
| Pop Warner Little Scholars IncWinchester | Form 990-EZ | $68,104FY2024 |
| Friends of the Ipswich Elderly IncIpswich | Form 990-EZ | $67,772FY2024 |
| May-West Roxbury Residences IncRandolph | Form 990 | $67,348FY2025 |
| Tri County Music Association IncRochester | Form 990-EZ | $67,293FY2025 |
| North Shore Civic Ballet Company IncMarblehead | Form 990-EZ | $67,217FY2025 |
| Methuen Youth Soccer Association IncMethuen | Form 990-EZ | $67,128FY2025 |
| Little League Baseball IncWhitman | Form 990-EZ | $66,974FY2025 |
| Nashoba Valley Chorale Inc theLittleton | Form 990-EZ | $66,047FY2025 |
| Boston Park League IncMansfield | Form 990-EZ | $66,035FY2024 |
| PTA Massachusetts Parent-Teacher Association IncRowley | Form 990-EZ | $65,849FY2025 |
| Society of American Military EngineersWestford | Form 990-EZ | $65,834FY2025 |
| Iron Work Farm in Acton IncActon | Form 990 | $65,738FY2025 |
| Depression and Bipolar Support Alliance BostonBelmont | Form 990-EZ | $65,559FY2026 |
| Trustees of the Salem Public LibrarySalem | Form 990 | $65,392FY2025 |
| Friends of the Tewksbury Public Library IncTewksbury | Form 990-EZ | $65,337FY2025 |
| Taft Parent Teacher Organization IncUxbridge | Form 990-EZ | $65,252FY2026 |
| Pace Community Housing CorporationNew Bedford | Form 990 | $65,103FY2025 |
| Friends of the Scituate Town LibraryScituate | Form 990-EZ | $64,752FY2025 |
| Temenos IncShutesbury | Form 990-EZ | $64,719FY2026 |
| Massachusetts Council for Social Studies IncMarshfield | Form 990-EZ | $64,697FY2025 |
| PTA Massachusetts Parent-Teacher Association IncSomerville | Form 990-EZ | $64,665FY2025 |
| Epicurean Club of Boston and VicinitySaugus | Form 990-EZ | $64,645FY2025 |
| Labor Assistance Professionals of MaMarshfield | Form 990-EZ | $64,637FY2025 |
| New England Collegiate Volleyball League IncBoston | Form 990-EZ | $64,549FY2025 |
| The Southborough Village Society IncSouthborough | Form 990 | $64,546FY2025 |
| PTA Massachusetts Parent-Teacher Association IncDuxbury | Form 990-EZ | $64,196FY2025 |
| Society of Saint Vincent de Paul in the Archdiocese of BostonBrookline | Form 990-EZ | $63,972FY2025 |
| Music Teachers National Association IncNatick | Form 990-EZ | $63,931FY2025 |
| Concord Band AssociationConcord | Form 990-EZ | $63,591FY2025 |
| Colorful Kidz IncCotuit | Form 990-EZ | $63,525FY2025 |
| Road Runners Club of AmericaMelrose | Form 990-EZ | $63,193FY2025 |
| Parent Booster USA IncTaunton | Form 990-EZ | $63,187FY2025 |
| Friends of BeamanWest Boylston | Form 990-EZ | $63,127FY2025 |
| The Duxbury Education Foundation IncDuxbury | Form 990-EZ | $63,052FY2025 |
| Foundation for Continuing Education IncWenham | Form 990 | $62,692FY2024 |
| Framingham Townwide PTO CouncilFramingham | Form 990-EZ | $62,263FY2025 |