| Staples Players Boosters IncWestport | Form 990-EZ | $65,734FY2025 |
| The Fletcher Memorial Library IncorporatedHampton | Form 990 | $65,664FY2024 |
| Rotary Club of New Canaan Charitable Foundation IncNew Canaan | Form 990-EZ | $65,090FY2025 |
| Uru the Right to Be IncNew Haven | Form 990-EZ | $65,000FY2024 |
| Middlebury Elementary School PTO IncMiddlebury | Form 990-EZ | $64,049FY2025 |
| Student Loan Fund IncNew Haven | Form 990-EZ | $63,338FY2025 |
| Latimer Lane School Parent Teacher Organization IncSimsbury | Form 990-EZ | $62,512FY2025 |
| Wallingford Youth Lacrosse IncWallingford | Form 990-EZ | $61,912FY2025 |
| Glastonbury Rotary Scholarship CorporationGlastonbury | Form 990-EZ | $61,847FY2025 |
| Friends of Ecole Agape IncAshford | Form 990-EZ | $61,833FY2025 |
| Friends of Trumbull HS Soccer IncTrumbull | Form 990-EZ | $61,668FY2025 |
| PTSA Connecticut IncRidgefield | Form 990-EZ | $61,560FY2025 |
| Amos ResourcesBridgeport | Form 990-EZ | $61,550FY2025 |
| Are You Dense IncWoodbury | Form 990-EZ | $61,502FY2024 |
| PTSA Connecticut IncNewtown | Form 990-EZ | $61,405FY2025 |
| Brien McMahon High School Band Parents IncNorwalk | Form 990-EZ | $59,632FY2025 |
| Connecticut Building Congress Scholarship FundMonroe | Form 990-EZ | $58,878FY2025 |
| Room 17 MathMilford | Form 990-EZ | $58,868FY2025 |
| Forging a Change for Empowerment and Sustainability Faces IncWest Haven | Form 990-EZ | $58,489FY2025 |
| John Trumbull Primary School PTO IncOakville | Form 990-EZ | $58,463FY2025 |
| Norwalk Education Foundation IncNorwalk | Form 990-EZ | $57,986FY2025 |
| Institute for Learning in Retirement of Greater New Haven inOrange | Form 990-EZ | $57,959FY2025 |
| Greenwich Education Groups School Foundation IncStamford | Form 990-EZ | $57,291FY2024 |
| PTSA Connecticut IncRidgefield | Form 990-EZ | $56,925FY2025 |
| Thompson Brook School Parent Teacher OrganizationAvon | Form 990-EZ | $56,236FY2025 |
| Canton Athletic Booster Club IncCollinsville | Form 990-EZ | $55,913FY2025 |
| Deans Mill Elementary School Parent Teacher OrganizationStonington | Form 990-EZ | $55,513FY2025 |
| Rolling Hills Country Club Scholarship FundWilton | Form 990-EZ | $55,061FY2024 |
| American Supporters of Highgate School IncWilton | Form 990-EZ | $55,028FY2024 |
| St Regis Foundation IncNew Haven | Form 990-EZ | $54,830FY2024 |
| Weston High School PTO IncWeston | Form 990-EZ | $54,802FY2025 |
| Elizabeth Anne Carlson Performing Arts Foundation IncWest Hartford | Form 990-EZ | $54,169FY2025 |
| Tolland Public Library Foundation IncTolland | Form 990 | $54,059FY2025 |
| East Hartford Alumni Association and Education Foundation IncEast Hartford | Form 990-EZ | $53,872FY2025 |
| Center School PTOEllington | Form 990-EZ | $53,833FY2025 |
| Lyman Hall High School Music Parents AssociationWallingford | Form 990-EZ | $52,528FY2025 |
| Kellie Kennedy Memorial IncNorth Haven | Form 990-EZ | $52,101FY2024 |
| Turkey Hill School Parent Teacher Organization IncOrange | Form 990-EZ | $52,098FY2025 |
| Jewish Links IncHartford | Form 990-EZ | $51,882FY2025 |
| Weston Middle School PTO IncWeston | Form 990-EZ | $51,592FY2025 |
| The Parent Teacher Council of StamfordStamford | Form 990-EZ | $51,278FY2025 |
| Jiwanko Saathiharu Jeremy Saxe Foundation for Education and DevelTrumbull | Form 990 | $51,262FY2024 |
| Conn Independent College and Univ Ins for Research & Public Serv IncWest Hartford | Form 990-EZ | $51,209FY2025 |
| Kiwanis Club of Milford Connecticut Foundation IncMilford | Form 990-EZ | $51,160FY2025 |
| The Kiwanis Foundation of Middletown IncMiddletown | Form 990-EZ | $51,093FY2025 |
| Friends of the Bristol Public LibraryBristol | Form 990-EZ | $50,427FY2025 |
| The Friends of the Bridgeport Public Library IncBridgeport | Form 990-EZ | $50,029FY2025 |
| Wakelee School PTOWolcott | Form 990-EZ | $49,568FY2025 |
| Stamford Old Timers Athletic Assoc IncStamford | Form 990-EZ | $49,173FY2025 |
| Windermere Parent TeachersEllington | Form 990-EZ | $49,060FY2025 |