Data / Nonprofits / Connecticut / Thompson
Nonprofits in Thompson, CT: 21 registered with the IRS
21 nonprofits are registered with the IRS in Thompson, CT, 15 of them 501(c)(3) charities; the 7 that report revenue took in $17.1 million. The largest by revenue: Trinity Foundation Inc ($11.9 million), Thornfield Hall Inc ($2.6 million), The Quinnatisset Country Club Inc ($2 million). Most common causes: religion-related (3), education (3).
SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.
Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Trinity Foundation Inc | Education | 501(c)(3) | 2002 | $11.9 million | $21.3 million | 2025-06 |
| Thornfield Hall Inc | 501(c)(3) | 1975 | $2.6 million | $12.8 million | 2025-09 | |
| The Quinnatisset Country Club Inc | 501(c)(7) | 1985 | $2 million | $5.3 million | 2024-12 | |
| Thompson Rod & Gun Club Inc | Recreation and sports | 501(c)(7) | 2014 | $265,694 | $566,593 | 2025-12 |
| Thompson Fire Engine Co | 501(c)(4) | 1984 | $155,061 | $835,982 | 2025-12 | |
| East Thompson Volunteer Fire Department Inc | 501(c)(4) | 1984 | $152,199 | $491,435 | 2025-09 | |
| West Thompson Cemetery Assoc Inc | 501(c)(13) | 1954 | $110,606 | $2.8 million | 2024-12 | |
| Barkies Legacy Inc | Animal-related | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Creation Church Inc | Religion-related | 501(c)(3) | 2020 | |||
| Friends of the Thompson Public Library Inc | 501(c)(3) | 1993 | $0 | $0 | 2026-03 | |
| International Association of Lions Clubs | 501(c)(4) | 1940 | $0 | $0 | 2026-06 | |
| Landmark Baptist Church | Religion-related | 501(c)(3) | 2003 | |||
| Little Pond Improvement Association | Environment | 501(c)(3) | 2025 | $0 | $0 | 2026-06 |
| Little T Quarter Midget Club Inc | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Quaddick Lake Association Inc | 501(c)(3) | 1983 | $0 | $0 | 2026-06 | |
| The Servants | Religion-related | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Thompson Historical Society Inc | 501(c)(3) | 1974 | $0 | $0 | 2025-06 | |
| Thompson Together | Education | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Tourtellotte Memorial High School Alumni Assoc | Education | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Village Improvement Sociiety of Thompson Inc | 501(c)(3) | 1990 | $0 | $0 | 2025-12 | |
| Vincent Family Charitable Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $2 million | 2025-12 |
By cause in Thompson, 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.