| THE STORR FAMILY FOUNDATION | Stamford | T20 Philanthropy, Voluntarism & Grantmaking Foundations | $16.5M | 0 |
| CHILDREN'S LEARNING CENTERS OF FAIRFIELD COUNTY INC | Stamford | P33Z Human Services | $16.5M | 7 |
| KNIGHTS OF COLUMBUS CHARITIES INC | New Haven | S820 Community Improvement & Capacity Building | $16.4M | 7 |
| EASTERN CONNECTICUT WORKFORCE INVESTMENT BOARD INC | Franklin | J20 Employment | $16.4M | 4 |
| AGENCY ON AGING OF SOUTH CENTRAL CONNECTICUT | North Haven | — | $16.4M | 4 |
| THE MICHAEL & CAROL LOWENSTEIN FOUNDATION INC | Greenwich | T22 Philanthropy, Voluntarism & Grantmaking Foundations | $16.3M | 0 |
| SOUTHWESTERN CT AGENCY ON AGING INC | Bridgeport | P810 Human Services | $16.3M | 5 |
| SERIOUSFUN CHILDREN'S NETWORK | Norwalk | F03 Mental Health & Crisis Intervention | $16.3M | 8 |
| THE STANWICH CLUB INCORPORATED | Greenwich | — | $16.2M | 7 |
| Raytheon Employees Disability Trust | Farmington | — | $16.2M | 1 |
| BELGIAN AMERICAN EDUCATIONAL FOUNDATION INC | New Haven | Q220 International, Foreign Affairs & National Security | $16.2M | 0 |
| ODD FELLOWS HOME OF CONNECTICUT INC | Groton | — | $16.2M | 7 |
| RELIANCE HEALTH INC | Norwich | F34Z Mental Health & Crisis Intervention | $16.1M | 5 |
| THE CONNECTICUT HISTORICAL SOCIETY Connecticut Museum of Culture & History | Hartford | A800 Arts, Culture & Humanities | $16.1M | 3 |
| TAMARACK COUNTRY CLUB INC | Greenwich | — | $15.9M | 5 |
| NEWMAN'S OWN FOUNDATION | Westport | T20 Philanthropy, Voluntarism & Grantmaking Foundations | $15.5M | 3 |
| WATERFORD COUNTRY SCHOOL INC | Quaker Hill | B280 Education | $15.5M | 4 |
| Hartford HealthCare Independence at Home Inc | Wethersfield | — | $15.4M | 14 |
| COLUMBUS HOUSE INC | New Haven | L410 Housing & Shelter | $15.3M | 5 |
| THE FB HERON FOUNDATION | New Haven | T20 Philanthropy, Voluntarism & Grantmaking Foundations | $15.3M | 3 |
| CATHOLIC CHARITIES OF FAIRFIELD COUNTY INC | Bridgeport | — | $15.3M | 6 |
| FAMILY & CHILDREN'S AGENCY INC | Norwalk | P200 Human Services | $15.2M | 7 |
| LIVEWELL ALLIANCE INC | Plantsville | — | $15.2M | 6 |
| HORIZONS PROGRAMS INC | South Windham | P82Z Human Services | $15.1M | 7 |
| POMPERAUG WOODS INC | Southbury | P750 Human Services | $15.1M | 5 |
| NORWALK COMMUNITY HEALTH CENTER | Norwalk | E32Z Health Care | $15.1M | 10 |
| REGIONAL HOSPICE AND HOME CARE OF WESTERN CONNECTICUT INC | Danbury | P74Z Human Services | $15M | 7 |
| LUMIBILITY INC | Westbrook | J300 Employment | $15M | 2 |
| COMMUNITY FOUNDATION OF GREATER NEW BRITAIN | New Britain | — | $15M | 4 |
| OCEAN EXPLORATION TRUST INC | New London | C05 Environment | $15M | 10 |
| WAMPANOAG COUNTRY CLUB | West Hartford | — | $14.8M | 5 |
| ACCESS AGENCY INC | Willimantic | — | $14.7M | 1 |
| BRISTOL HEALTH CARE INC | Bristol | E91Z Health Care | $14.6M | 11 |
| CONNECTICUT LEGAL SERVICES INC | Middletown | I80Z Crime & Legal-Related | $14.6M | 8 |
| FAIRVIEW COUNTRY CLUB INC | Greenwich | — | $14.5M | 7 |
| VISITING NURSE & HOSPICE OF FAIRFIELD COUNTY INC | Wilton | E99Z Health Care | $14.4M | 10 |
| THE AMERICAN RADIO RELAY LEAGUE INC | Newington | A340 Arts, Culture & Humanities | $14.3M | 7 |
| JEWISH FEDERATION OF GREATER HARTFORD | West Hartford | T700 Philanthropy, Voluntarism & Grantmaking Foundations | $14.3M | 4 |
| SARAH TUXIS RESIDENTIAL SERVICES IN | Guilford | P730 Human Services | $14.3M | 4 |
| United Way of Southeastern Connecticut Inc | Gales Ferry | — | $14.2M | 5 |
| THE INNIS ARDEN GOLF CLUB INC | Old Greenwich | — | $14.2M | 7 |
| JEWISH COMMUNITY FOUNDATION OF GREATER HARTFORD INC | West Hartford | T700 Philanthropy, Voluntarism & Grantmaking Foundations | $14.2M | 5 |
| GOODSPEED OPERA HOUSE FOUNDATION INC | East Haddam | A650 Arts, Culture & Humanities | $14.1M | 7 |
| CONNECTICUT HUMANITIES COUNCIL INC | Middletown | A700 Arts, Culture & Humanities | $14.1M | 1 |
| PREA FOUNDATION INC | Hartford | J21 Employment | $14.1M | 1 |
| CONNECTICUT SCIENCE CENTER INC | Hartford | A570 Arts, Culture & Humanities | $14M | 5 |
| FRANCISCAN LIFE CENTER NETWORK INCORPORATED | Meriden | — | $14M | 3 |
| WATKINSON SCHOOL | Hartford | B250 Education | $14M | 5 |
| CONNECTICUT COUNSELING CENTERS INC | Waterbury | — | $14M | 8 |
| SOUTHINGTON-CHESHIRE COMMUNITY YMCA | Southington | P270 Human Services | $14M | 4 |
