Data / Nonprofits / Connecticut / Cos Cob / Human services
Human services nonprofits in Cos Cob, CT: 8 registered with the IRS
8 human services nonprofits are registered with the IRS in Cos Cob, CT, 8 of them 501(c)(3) charities; the 4 that report revenue took in $3.2 million. The largest by revenue: Greenwich Adult Day Care Inc ($1.9 million), Historic Properties of Greenwich Inc ($908,416), Greenwich Adult Day Care Trust Fund ($242,112).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Greenwich Adult Day Care Inc | 501(c)(3) | 1983 | $1.9 million | $3 million | 2025-06 |
| Historic Properties of Greenwich Inc | 501(c)(3) | 2022 | $908,416 | $826,965 | 2024-12 |
| Greenwich Adult Day Care Trust Fund | 501(c)(3) | 1988 | $242,112 | $2.1 million | 2025-12 |
| Childrens Center of Cos Cob Inc | 501(c)(3) | 1996 | $149,972 | $90,953 | 2025-06 |
| Harness All Possibilities Inc | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Hats4healing Corp | 501(c)(3) | 2022 | $0 | $0 | 2023-12 |
| James and Melissa Oshaughnessy Family Foundation | 501(c)(3) | 2022 | $52,411 | 2025-12 | |
| Write Start Inc | 501(c)(3) | 2025 |
Other causes in Cos Cob, CT
- Arts, culture and humanities 10
- Education 8
- Philanthropy, voluntarism and grantmaking foundations 7
- Recreation and sports 7
- Public safety, disaster preparedness and relief 3
- Environment 3
- Community improvement and capacity building 3
Every nonprofit in Cos Cob, CT · Human services 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.