Largest private foundations in Maine
| # | Foundation | City | Focus area | Total assets |
|---|---|---|---|---|
| 1 | Harold Alfond Foundation | Portland | Philanthropy, Voluntarism & Grantmaking Foundations | $1.0 billion |
| 2 | Puffin Bay Foundation | Biddeford | Philanthropy, Voluntarism & Grantmaking Foundations | $743.3 million |
| 3 | Blue Horizons Foundation | Gorham | Philanthropy, Voluntarism & Grantmaking Foundations | $239.7 million |
| 4 | John T Gorman Foundation | Portland | Philanthropy, Voluntarism & Grantmaking Foundations | $223.5 million |
| 5 | Elmina B Sewall Foundation | Freeport | Not listed | $164.8 million |
| 6 | Kahle-Austin Foundation | Biddeford | Philanthropy, Voluntarism & Grantmaking Foundations | $161.8 million |
| 7 | Libra Foundation Owen W Wells Trustee | Portland | Not listed | $156.5 million |
| 8 | Maine Health Access Foundation Inc | Augusta | Health Care | $154.4 million |
| 9 | Kahle-Austin Family Foundation | Biddeford | Philanthropy, Voluntarism & Grantmaking Foundations | $128.3 million |
| 10 | Huber Foundation | Falmouth | Not listed | $79.9 million |
| 11 | Onion Foundation | Wayne | Unknown | $63.6 million |
| 12 | J Blair And Tena Frank Foundation | Portland | Philanthropy, Voluntarism & Grantmaking Foundations | $52.3 million |
| 13 | Melmac Education Foundation | Augusta | Public & Societal Benefit | $40.6 million |
| 14 | Schiavi Family Foundation | Portland | Not listed | $38.3 million |
| 15 | Shaw Brothers Family Foundation Inc | Gorham | Philanthropy, Voluntarism & Grantmaking Foundations | $38.2 million |
| 16 | Sandy River Charitable Foundation | New Portland | Employment | $38.0 million |
| 17 | Evelyn S And K E Barrett Foundation | York | Philanthropy, Voluntarism & Grantmaking Foundations | $36.2 million |
| 18 | The Bill And Joan Alfond Foundation | Portland | Not listed | $31.2 million |
| 19 | John Marin Foundation | Jonesport | Voluntary Health Associations & Medical Disciplines | $30.8 million |
| 20 | Roxanne Quimby Foundation Inc | Portland | Philanthropy, Voluntarism & Grantmaking Foundations | $28.8 million |
| 21 | Sam L Cohen Foundation | Portland | Philanthropy, Voluntarism & Grantmaking Foundations | $28.0 million |
| 22 | Judy Glickman Lauder Foundation | Portland | Philanthropy, Voluntarism & Grantmaking Foundations | $24.2 million |
| 23 | Morton-Kelly Charitable Tr | Portland | Not listed | $21.6 million |
| 24 | Quimby Family Foundation | Portland | Philanthropy, Voluntarism & Grantmaking Foundations | $21.5 million |
| 25 | The Pasculano Foundation | Cape Eliz | Philanthropy, Voluntarism & Grantmaking Foundations | $21.3 million |
The full list includes all 525 Maine foundations with street address, ZIP, EIN, focus area, income and tax period, plus every other state.
Maine cities with the most private foundations
- Portland: 114
- Bangor: 27
- Damariscotta: 23
- Falmouth: 16
- Augusta: 15
- Scarborough: 13
- Kennebunk: 13
- Biddeford: 12
- S Portland: 12
- Bath: 10
Most common focus areas in Maine
- Philanthropy, Voluntarism & Grantmaking Foundations: 236
- Education: 43
- Arts, Culture & Humanities: 20
- Human Services: 10
- Animal-Related: 10
- Religion-Related: 9
- Unknown: 7
- Public & Societal Benefit: 7
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.