Largest private foundations in Maryland
| # | Foundation | City | Focus area | Total assets |
|---|---|---|---|---|
| 1 | Annie E Casey Foundation | Baltimore | Philanthropy, Voluntarism & Grantmaking Foundations | $2.3 billion |
| 2 | The Harry & Jeanette Weinberg Foundation Inc | Owings Mills | Philanthropy, Voluntarism & Grantmaking Foundations | $1.8 billion |
| 3 | Davis Family Foundation | Hanover | Philanthropy, Voluntarism & Grantmaking Foundations | $1.6 billion |
| 4 | Diana Davis Spencer Foundation | Bethesda | Philanthropy, Voluntarism & Grantmaking Foundations | $1.3 billion |
| 5 | Sherman Fairchild Foundation Inc | Chevy Chase | Philanthropy, Voluntarism & Grantmaking Foundations | $689.6 million |
| 6 | The Morningstar Philanthropic Foundation | Bethesda | Not listed | $546.1 million |
| 7 | Stephen And Renee Bisciotti Foundation Inc | Baltimore | Philanthropy, Voluntarism & Grantmaking Foundations | $474.4 million |
| 8 | Clark Charitable Foundation Inc | Bethesda | Philanthropy, Voluntarism & Grantmaking Foundations | $447.1 million |
| 9 | J Willard And Alice S Marriott Foundation | Bethesda | Philanthropy, Voluntarism & Grantmaking Foundations | $442.5 million |
| 10 | The Keith Campbell Foundation For The Environment Inc | Bethesda | Philanthropy, Voluntarism & Grantmaking Foundations | $420.2 million |
| 11 | Rise8 Foundation | Hunt Valley | Philanthropy, Voluntarism & Grantmaking Foundations | $342.5 million |
| 12 | The Abell Foundation Inc | Baltimore | Not listed | $296.4 million |
| 13 | Eugene B Casey Foundation | Gaithersburg | Philanthropy, Voluntarism & Grantmaking Foundations | $286.1 million |
| 14 | Educational Foundation Of America | Bethesda | Not listed | $251.2 million |
| 15 | Robert & Lynda Altman Family Foundation | Baltimore | Philanthropy, Voluntarism & Grantmaking Foundations | $227.8 million |
| 16 | France-Merrick Foundation Inc | Baltimore | Not listed | $192.7 million |
| 17 | Clark-Winchcole Foundation | Bethesda | Not listed | $176.5 million |
| 18 | De Beaumont Foundation Inc | Bethesda | Philanthropy, Voluntarism & Grantmaking Foundations | $163.5 million |
| 19 | Robert I Schattner Foundation Inc | Rockville | Not listed | $150.1 million |
| 20 | Howard And Geraldine Polinger Foundation Inc | Chevy Chase | Not listed | $142.5 million |
| 21 | Robert W Deutsch Foundation Inc | Baltimore | Philanthropy, Voluntarism & Grantmaking Foundations | $135.6 million |
| 22 | Mary Catherine Bunting Fundation | Hunt Valley | Philanthropy, Voluntarism & Grantmaking Foundations | $132.5 million |
| 23 | Jacob And Hilda Blaustein Foundation Inc | Baltimore | Not listed | $123.1 million |
| 24 | Geico Philanthropic Foundation | Chevy Chase | Philanthropy, Voluntarism & Grantmaking Foundations | $119.0 million |
| 25 | Nora Roberts Foundation Inc | Glenn Dale | Philanthropy, Voluntarism & Grantmaking Foundations | $118.6 million |
The full list includes all 2,210 Maryland foundations with street address, ZIP, EIN, focus area, income and tax period, plus every other state.
Maryland cities with the most private foundations
- Baltimore: 330
- Bethesda: 205
- Rockville: 91
- Potomac: 91
- Chevy Chase: 77
- Towson: 77
- Annapolis: 67
- Silver Spring: 65
- Ellicott City: 46
- Frederick: 41
Most common focus areas in Maryland
- Philanthropy, Voluntarism & Grantmaking Foundations: 1,015
- Education: 164
- Human Services: 108
- Arts, Culture & Humanities: 73
- Religion-Related: 54
- Youth Development: 43
- Recreation & Sports: 40
- Health Care: 37
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.