Largest private foundations in Connecticut
| # | Foundation | City | Focus area | Total assets |
|---|---|---|---|---|
| 1 | Peter And Carmen Lucia Buck Foundation Inc | Mystic | Philanthropy, Voluntarism & Grantmaking Foundations | $2.8 billion |
| 2 | Dalio Foundation Inc | Westport | Philanthropy, Voluntarism & Grantmaking Foundations | $1.7 billion |
| 3 | Zoom Foundation | Greenwich | Philanthropy, Voluntarism & Grantmaking Foundations | $1.3 billion |
| 4 | Jane And Daniel Och Family Foundation | Greenwich | Philanthropy, Voluntarism & Grantmaking Foundations | $570.1 million |
| 5 | Steven & Alexandra Cohen Foundation Inc | Stamford | Philanthropy, Voluntarism & Grantmaking Foundations | $537.2 million |
| 6 | Halvorsen Family Foundation | Stamford | Philanthropy, Voluntarism & Grantmaking Foundations | $365.4 million |
| 7 | F B Heron Foundation | New Haven | Not listed | $349.3 million |
| 8 | The Tow Foundation Inc | New Canaan | Philanthropy, Voluntarism & Grantmaking Foundations | $314.3 million |
| 9 | Boehringer Ingelheim Cares Foundation Inc | Ridgefield | Education | $303.0 million |
| 10 | The Risc Foundation Inc | New Haven | Philanthropy, Voluntarism & Grantmaking Foundations | $279.4 million |
| 11 | Seedlings Foundation | Branford | Philanthropy, Voluntarism & Grantmaking Foundations | $225.8 million |
| 12 | Leon Lowenstein Foundation Inc | New Haven | Not listed | $218.5 million |
| 13 | Low Road Foundation | Sharon | Philanthropy, Voluntarism & Grantmaking Foundations | $217.1 million |
| 14 | Newmans Own Foundation | Westport | Philanthropy, Voluntarism & Grantmaking Foundations | $215.7 million |
| 15 | McChord Foundation | Norwalk | Human Services | $182.0 million |
| 16 | Knobloch Family Foundation | Fairfield | Philanthropy, Voluntarism & Grantmaking Foundations | $163.2 million |
| 17 | Pitch Foundation | Riverside | Philanthropy, Voluntarism & Grantmaking Foundations | $157.3 million |
| 18 | The Grossman Family Foundation | Cos Cob | Philanthropy, Voluntarism & Grantmaking Foundations | $142.5 million |
| 19 | Big Win Philanthropy Inc | Greens Farms | Youth Development | $139.0 million |
| 20 | Melville Charitable Trust Inc | New Haven | Philanthropy, Voluntarism & Grantmaking Foundations | $130.7 million |
| 21 | Connecticut Health Foundation Inc | Hartford | Philanthropy, Voluntarism & Grantmaking Foundations | $122.5 million |
| 22 | Hampshire Foundation Inc | Hartford | Food, Agriculture & Nutrition | $122.1 million |
| 23 | William Caspar Graustein Memorial Fund | Hamden | Not listed | $121.2 million |
| 24 | Edward John Noble Foundation Inc | Greenwich | Not listed | $121.0 million |
| 25 | American Savings Foundation Inc | New Britain | Philanthropy, Voluntarism & Grantmaking Foundations | $107.0 million |
The full list includes all 1,788 Connecticut foundations with street address, ZIP, EIN, focus area, income and tax period, plus every other state.
Connecticut cities with the most private foundations
- Greenwich: 179
- Stamford: 143
- West Hartford: 87
- Westport: 81
- New Canaan: 61
- New Haven: 59
- Fairfield: 56
- Darien: 54
- Hartford: 51
- Norwalk: 47
Most common focus areas in Connecticut
- Philanthropy, Voluntarism & Grantmaking Foundations: 950
- Education: 113
- Arts, Culture & Humanities: 48
- Human Services: 47
- Recreation & Sports: 36
- Unknown: 18
- Community Improvement & Capacity Building: 15
- Religion-Related: 14
Where does this data come from?
The IRS Exempt Organizations Business Master File, downloaded in October 2026 and filtered to private foundations. Assets are as reported on each foundation's latest return on file. Foundations with no focus area code are shown as Not listed.