| Simsbury Historical Society IncSimsbury | Form 990 | $330,135FY2025 |
| Apostle Immigrant Services CorporationNew Haven | Form 990 | $330,021FY2025 |
| Norfolk Senior Housing CorporationNorfolk | Form 990 | $328,828FY2025 |
| Amys Angels CorporationSimsbury | Form 990 | $325,448FY2024 |
| Kenneth Gottesfeld-Charles Hohler Memorial FoundationWoodbridge | Form 990 | $325,176FY2024 |
| LABS4RESCUE IncKillingworth | Form 990 | $320,386FY2025 |
| North Windham Fire Department IncNorth Windham | Form 990 | $314,756FY2025 |
| PTSA Connecticut IncRowayton | Form 990 | $314,292FY2025 |
| Where the Love Is IncHamden | Form 990 | $313,566FY2024 |
| Branford Food Pantry IncBranford | Form 990 | $312,812FY2026 |
| Caring Families Pregnancy Services IncWillimantic | Form 990 | $310,614FY2025 |
| New London County Historical Society IncNew London | Form 990 | $310,497FY2024 |
| Little League Baseball IncMilford | Form 990 | $309,839FY2025 |
| Womens Aux of the Jewish Home for the Eldry of Fairfield Cnty IncBridgeport | Form 990 | $306,224FY2025 |
| New Canaan Cares IncNew Canaan | Form 990 | $304,217FY2025 |
| Upson Rockhaven IncGlastonbury | Form 990 | $301,197FY2024 |
| Roxbury Ambulance Association IncRoxbury | Form 990 | $300,654FY2025 |
| Hebron Interfaith Human Services IncHebron | Form 990 | $300,609FY2026 |
| Byram Archibald Neighborhood Center Trust IncGreenwich | Form 990 | $300,312FY2025 |
| Marys Place IncWindsor | Form 990 | $299,164FY2024 |
| A Better Choice Womens CenterMiddletown | Form 990 | $298,966FY2024 |
| Madison Youth Soccer Booster ClubMadison | Form 990 | $298,611FY2024 |
| PTSA Connecticut IncGreenwich | Form 990 | $293,305FY2025 |
| Hygienic Art IncNew London | Form 990 | $292,849FY2025 |
| New Haven Rowing Club IncOxford | Form 990 | $288,442FY2024 |
| Cornwall Library AssociationCornwall | Form 990 | $287,008FY2025 |
| Connecticut Education Foundation IncHartford | Form 990 | $284,875FY2025 |
| Bethlehem Ambulance Association IncBethlehem | Form 990 | $284,688FY2025 |
| Waterford Public Library IncWaterford | Form 990 | $284,656FY2025 |
| Bethlehem Land Trust IncBethlehem | Form 990 | $283,142FY2024 |
| Haddam Elderly Housing CorporationTolland | Form 990 | $282,981FY2024 |
| Peoples Action for Clean Energy IncWest Simsbury | Form 990 | $280,389FY2025 |
| Ridgefield Youth Service Bureau IncRidgefield | Form 990 | $280,284FY2025 |
| Senior Transportation Services IncNew Britain | Form 990 | $279,730FY2025 |
| Prospect - Bethany Youth Soccer Association IncProspect | Form 990 | $277,074FY2024 |
| West Hartford Community TV IncWest Hartford | Form 990 | $275,932FY2024 |
| Avon Soccer ClubWeatogue | Form 990 | $275,197FY2025 |
| United States Aikido FederationLitchfield | Form 990 | $274,125FY2025 |
| Greenwich Cardinals Youth Hockey AssociationGreenwich | Form 990 | $273,564FY2025 |
| Avon High School Booster Club IncAvon | Form 990 | $273,063FY2025 |
| Down Syndrome Association of Connecticut IncPawcatuck | Form 990 | $271,395FY2024 |
| Nichols Improvement Assoc IncTrumbull | Form 990 | $271,252FY2024 |
| Central Area Health Education Center IncorporatedHartford | Form 990 | $269,646FY2025 |
| Hydrographic Socety of America IncCheshire | Form 990 | $268,234FY2025 |
| Sound Beach Volunteer Services Foundation IncOld Greenwich | Form 990 | $266,865FY2025 |
| Easton Redding United Soccer Club LtdRedding | Form 990 | $266,283FY2024 |
| Milford Historical Society Trust Ua 9519001900Milford | Form 990 | $264,235FY2025 |
| Survivors of Homicide IncWethersfield | Form 990 | $263,606FY2026 |
| Parents Available to Help IncNorthford | Form 990 | $262,147FY2024 |
| Library Friends IncManchester | Form 990 | $261,175FY2025 |