Data / Nonprofits / Connecticut / Greenwich / Health care
Health care nonprofits in Greenwich, CT: 19 registered with the IRS
19 health care nonprofits are registered with the IRS in Greenwich, CT, 19 of them 501(c)(3) charities; the 11 that report revenue took in $606 million. The largest by revenue: Greenwich Hospital ($591.8 million), The Greenwich Hospital Endowment Fund ($8.7 million), Breast Cancer Alliance Inc ($1.9 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Greenwich Hospital | 501(c)(3) | 1972 | $591.8 million | $910 million | 2025-09 |
| The Greenwich Hospital Endowment Fund | 501(c)(3) | 1998 | $8.7 million | $139 million | 2025-09 |
| Breast Cancer Alliance Inc | 501(c)(3) | 1998 | $1.9 million | $3.2 million | 2026-03 |
| Natalie Foundation | 501(c)(3) | 2024 | $1.5 million | $1.5 million | 2024-12 |
| Ons Foundation for Clinical Research and Education Inc | 501(c)(3) | 2008 | $458,221 | $1.9 million | 2025-12 |
| Open Arts Alliance Inc | 501(c)(3) | 2012 | $435,833 | $624,439 | 2025-06 |
| Volunteer Health Program LTD | 501(c)(3) | 1994 | $415,580 | $95,700 | 2025-06 |
| Parkinsons Body and Mind Inc | 501(c)(3) | 2022 | $359,945 | $394,825 | 2024-12 |
| Committee To Reduce Infection Deaths Inc | 501(c)(3) | 2005 | $324,291 | $464,123 | 2025-09 |
| Greenwich Chaplaincy Services Inc | 501(c)(3) | 1968 | $105,445 | $139,568 | 2024-12 |
| Sos Eb Kids Corp | 501(c)(3) | 2015 | $27,461 | $128,238 | 2025-12 |
| Ansell Family Foundation Inc | 501(c)(3) | 2017 | $33,793 | 2024-12 | |
| Burn Support Bangladesh Inc | 501(c)(3) | 2024 | $0 | $0 | 2023-12 |
| Eyecare From the Heart Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| FMR Wellness Foundation | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Living Science Center Foundation | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Nourish Now Foundation Inc | 501(c)(3) | 2026 | |||
| Perryridge Corporation | 501(c)(3) | 1989 | $0 | $1.1 million | 2025-09 |
| Sterling Care Foundation Inc | 501(c)(3) | 2017 | $0 | $0 | 2024-12 |
Other causes in Greenwich, CT
- Philanthropy, voluntarism and grantmaking foundations 132
- Education 50
- Arts, culture and humanities 47
- Human services 22
- Recreation and sports 22
- Community improvement and capacity building 16
- Religion-related 16
- Environment 12
- International, foreign affairs and national security 10
- Youth development 9
- Diseases, disorders and medical disciplines 7
- Public and societal benefit 7
- Housing and shelter 6
- Animal-related 6
- Employment 6
- Public safety, disaster preparedness and relief 5
- Medical research 5
- Mental health and crisis intervention 4
- Civil rights, social action and advocacy 4
- Science and technology 3
Every nonprofit in Greenwich, CT · Health care nonprofits across the state · Nonprofits in every city of the state
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.