| Montessori School of MassachusettsQuincy | Form 990-EZ | $86,139FY2025 |
| Synapse Foundation IncBoston | Form 990-EZ | $86,075FY2025 |
| Friends of the Newton Free LibraryNewton | Form 990-EZ | $86,039FY2025 |
| Angier School PTOWaban | Form 990-EZ | $86,024FY2025 |
| Willis E Thorpe Parent Advisory CouncilDanvers | Form 990-EZ | $85,947FY2023 |
| PBCC Scholars Foundation IncWeston | Form 990-EZ | $85,790FY2024 |
| Foxborough Regional Charter School FoundationFoxborough | Form 990-EZ | $85,727FY2025 |
| Nellie L Sparrell Educational TrustNorwell | Form 990 | $85,516FY2025 |
| Proyecto Nehemias IncIpswich | Form 990-EZ | $85,430FY2024 |
| Stoneham Middle School Parent Teacher OrganizationStoneham | Form 990-EZ | $85,402FY2025 |
| Bennett-Hemenway PTO IncNatick | Form 990-EZ | $85,341FY2025 |
| Mendon Upton Music BoostersUpton | Form 990-EZ | $85,173FY2025 |
| Mildred H Aitken School PTOSeekonk | Form 990-EZ | $84,754FY2025 |
| Lincoln Street Complex PCC IncFranklin | Form 990-EZ | $84,717FY2025 |
| Holyoke City Wide PTO IncAgawam | Form 990-EZ | $84,685FY2023 |
| New England Adjustment Managers Association IncCanton | Form 990-EZ | $84,593FY2025 |
| John a Bishop Parent Teacher OrganizationArlington | Form 990-EZ | $84,247FY2025 |
| Blackstone Valley Chamber of Commerce Education FoundationWhitinsville | Form 990-EZ | $84,170FY2025 |
| Pine Hill Elementary School PTO IncWestwood | Form 990-EZ | $83,972FY2025 |
| CarepacksWeymouth | Form 990-EZ | $83,949FY2025 |
| Morse Hill Outdoor Education Center IncorporatedAmherst | Form 990-EZ | $83,679FY2025 |
| Communities Without Borders a Nonprofit CorporationNewton | Form 990-EZ | $83,645FY2024 |
| Old Charlestown Schoolgirls Association IncCharlestown | Form 990-EZ | $83,563FY2025 |
| Brookline High School PTOBrookline | Form 990-EZ | $83,467FY2025 |
| Leominster Education Foundation IncLeominster | Form 990-EZ | $83,453FY2025 |
| Harvard Model Congress AsiaCambridge | Form 990-EZ | $83,193FY2026 |
| Love Transforming CommunityBrockton | Form 990-EZ | $83,120FY2025 |
| Pierce School Parent TeacherBrookline | Form 990-EZ | $83,044FY2025 |
| Middle School Parent Teacher OrganizationShrewsbury | Form 990-EZ | $83,042FY2023 |
| Friends of the Wellesley Free Libraries IncWellesley | Form 990-EZ | $82,964FY2026 |
| Eva W Larowe Memorial Scholarship FundMedfield | Form 990-EZ | $82,952FY2025 |
| Mill Pond Parent GroupWestborough | Form 990-EZ | $82,807FY2025 |
| Franklin Music Boosters IncFranklin | Form 990-EZ | $82,418FY2025 |
| Lynch School Parents AssociationWinchester | Form 990-EZ | $82,413FY2025 |
| Monomoy All Sports Booster ClubHarwich | Form 990-EZ | $82,020FY2024 |
| Maine Library AssociationBelchertown | Form 990-EZ | $81,663FY2025 |
| New Garden Society LtdRoslindale | Form 990-EZ | $81,595FY2025 |
| Advanced Collegiate IncMilton | Form 990-EZ | $81,579FY2025 |
| New England Transfer Association IncWorcester | Form 990-EZ | $81,508FY2025 |
| George Mitchell Elementary School Parents AssociationBridgewater | Form 990-EZ | $81,477FY2025 |
| Amesbury High School All Sports Boosters Club IncAmesbury | Form 990-EZ | $81,453FY2026 |
| Franklin School Parent Teacher Organization IncorporatedNorth Andover | Form 990-EZ | $81,353FY2025 |
| The Kiwanis Club of Sandwich IncSandwich | Form 990-EZ | $81,262FY2025 |
| Hanover Permanent Scholarship Fund IncHanover | Form 990 | $81,187FY2025 |
| Zervas School Parent-Teacher OrganizationWaban | Form 990-EZ | $80,739FY2025 |
| Friends of the Curley K8 SchoolBoston | Form 990-EZ | $80,695FY2025 |
| Somerset Berkley Education Foundation Charitable TRSomerset | Form 990-EZ | $80,496FY2025 |
| Brackett Elementary School PTOArlington | Form 990-EZ | $80,360FY2025 |
| Straw Dog Writers Guild IncorporatedNorthampton | Form 990-EZ | $80,262FY2025 |
| Friends of the Melrose Public Library IncMelrose | Form 990-EZ | $80,164FY2025 |