| Lymes Youth Service Bureau IncOld Lyme | Form 990 | $1,019,813FY2025 |
| Criterion Institute IncHaddam | Form 990 | $1,014,633FY2023 |
| Girls Incorporated of MeridenMeriden | Form 990 | $1,003,744FY2024 |
| Hacd CorpDanbury | Form 990 | $1,002,582FY2024 |
| Norwalk Senior Center IncNorwalk | Form 990 | $1,000,321FY2025 |
| New Hartford Volunteer Ambulance Association IncNew Hartford | Form 990 | $993,679FY2025 |
| Music Academy International IncHartford | Form 990 | $984,608FY2024 |
| Putnam Baptist Homes IncPutnam | Form 990 | $977,965FY2025 |
| American Academy of Psychiatry & the LawBloomfield | Form 990 | $971,764FY2024 |
| Geer CorporationCanaan | Form 990 | $962,532FY2025 |
| Hopeline Womens Center IncBridgeport | Form 990 | $956,222FY2025 |
| Carriage House Day Care Center IncMeriden | Form 990 | $955,843FY2025 |
| Music Mountain IncorporatedLakeville | Form 990 | $950,186FY2025 |
| NAMI of Connecticut IncorporatedNew Britain | Form 990 | $926,927FY2025 |
| W L Gilbert Trust CorporationWinsted | Form 990 | $925,001FY2025 |
| Three Rivers College FoundationNorwich | Form 990 | $924,770FY2025 |
| Courage International IncTrumbull | Form 990 | $921,723FY2025 |
| Clinton Child Care Service IncClinton | Form 990 | $916,907FY2025 |
| Habitat for Humanity International IncCromwell | Form 990 | $912,859FY2025 |
| Mycatholicdoctor Foundation IncNew Canaan | Form 990 | $910,202FY2025 |
| Torrington Child Care Center IncTorrington | Form 990 | $903,324FY2025 |
| Connecticut Association for Home Care and Hospice IncWallingford | Form 990 | $900,348FY2025 |
| Latino Community Services IncHartford | Form 990 | $897,302FY2024 |
| St Johns Housing CorporationTolland | Form 990 | $886,577FY2024 |
| Chestnut Grove Association IncNew Milford | Form 990 | $886,470FY2024 |
| Westport Baseball & Softball IncWestport | Form 990 | $880,087FY2025 |
| American Association of the Order of Saint Lazarus IncRidgefield | Form 990 | $872,023FY2024 |
| Connecticut Ballet IncStamford | Form 990 | $867,225FY2025 |
| Eastern Connecticut Housing Organization IncDanielson | Form 990 | $865,524FY2025 |
| Middlebury Senior Housing Associates IncMiddlebury | Form 990 | $850,431FY2025 |
| New Canaan Land Conservation Trust IncNew Canaan | Form 990 | $844,438FY2025 |
| Guilford Foundation IncGuilford | Form 990 | $844,006FY2025 |
| First United Methodist Church Nursery SchoolStamford | Form 990 | $830,951FY2025 |
| Ameelio IncWest Hartford | Form 990 | $829,208FY2024 |
| Meadows Real Estate Management and Development CorporationHartford | Form 990 | $829,095FY2024 |
| Manufactoring Alliance Service Corporation IncWaterbury | Form 990 | $817,158FY2025 |
| Old Saybrook Senior Housing IncorporatedOld Saybrook | Form 990 | $815,790FY2025 |
| River Park Elderly Housing Inc River Park Elderly Housing IncMilford | Form 990 | $814,616FY2024 |
| Rowayton Senior Housing Corporation C/O Kenneth LaclairRowayton | Form 990 | $813,173FY2025 |
| Literacy Volunteers of Greater HartfordHartford | Form 990 | $810,270FY2025 |
| Council of Darien School ParentsDarien | Group return | $809,545FY2025 |
| Rta IncorporatedNew Haven | Form 990 | $808,538FY2025 |
| Catholic Charities Diocese of Norwich IncNorwich | Form 990 | $792,404FY2025 |
| Community Dining Room IncBranford | Form 990 | $790,337FY2024 |
| Barbaras House IncGreenwich | Form 990 | $785,949FY2025 |
| Association of the Free Library & Reading RM Rowayton IncNorwalk | Form 990 | $781,044FY2025 |
| Connecticut Polar Bears W H C IncMonroe | Form 990 | $775,370FY2025 |
| Jewish Historical Society of Greater New Haven IncNew Haven | Form 990 | $765,228FY2025 |
| Raisefashion IncWoodbury | Form 990 | $765,191FY2024 |
| Hannah Gray Development CorporationNew Haven | Form 990 | $762,350FY2025 |