Data / Nonprofits / Connecticut / Washington DT
Nonprofits in Washington DT, CT: 22 registered with the IRS
22 nonprofits are registered with the IRS in Washington DT, CT, 17 of them 501(c)(3) charities; the 8 that report revenue took in $32.8 million. The largest by revenue: Rumsey Hall School Incorporated ($23.6 million), Steep Rock Association Inc ($4.6 million), Washington Club Inc ($2.9 million). Most common causes: environment (4), education (3).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Rumsey Hall School Incorporated | Education | 501(c)(3) | 1942 | $23.6 million | $93.3 million | 2025-06 |
| Steep Rock Association Inc | Environment | 501(c)(3) | 1943 | $4.6 million | $32.4 million | 2025-09 |
| Washington Club Inc | Recreation and sports | 501(c)(7) | 1960 | $2.9 million | $3.4 million | 2024-12 |
| After School Arts Program Inc | Arts, culture and humanities | 501(c)(3) | 2004 | $879,163 | $616,810 | 2025-06 |
| Washington Park Foundation Inc | Recreation and sports | 501(c)(3) | 2014 | $319,212 | $2.4 million | 2024-12 |
| Washington Scholarship Fund Inc | Education | 501(c)(3) | 2014 | $246,884 | $1.6 million | 2025-12 |
| Washington Volunteer Fire Department Inc | Health care | 501(c)(3) | 1995 | $213,118 | $866,592 | 2024-12 |
| Washington Cemetery Association | 501(c)(13) | 1960 | $114,043 | $3.2 million | 2025-06 | |
| American Legion | 501(c)(19) | 1946 | $0 | $0 | 2025-12 | |
| Association for the Protection of C Onnecticut Lakes | Environment | 501(c)(3) | 2026 | |||
| Connecticut Athletic Trainers Association Inc | 501(c)(6) | 1989 | $0 | $0 | 2025-12 | |
| Fair Chance Initiative | Mental health and crisis intervention | 501(c)(3) | 2025 | $0 | $0 | 2026-06 |
| Federated Garden Clubs of Connecticut Inc | Environment | 501(c)(3) | 1967 | $0 | $0 | 2025-06 |
| Financial Industry Climate Leadership Network LTD | Environment | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Future Farmers of America State Associations & Local Chapter | 501(c)(3) | 1945 | $0 | $0 | 2026-06 | |
| Innovative Advanced Cancer Research Foundation Inc | Medical research | 501(c)(3) | 2015 | $0 | $0 | 2025-06 |
| Lilac Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $513,046 | 2024-12 | |
| Our Lady of Perpetual Help Parish Corporation | 501(c)(3) | 1946 | ||||
| Ted Alex Memorial | Education | 501(c)(3) | 2016 | $0 | $0 | 2026-06 |
| The Washington Rod & Gun Club Incorporated | Community improvement and capacity building | 501(c)(4) | 2019 | $0 | $0 | 2025-12 |
| Unity in Grief Corp | Mental health and crisis intervention | 501(c)(3) | 2024 | |||
| Wenden Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2012 | $7 million | 2024-12 |
By cause in Washington DT, CT
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.