Data / Nonprofits / Maine / Islesboro
Nonprofits in Islesboro, ME: 18 registered with the IRS
18 nonprofits are registered with the IRS in Islesboro, ME, 16 of them 501(c)(3) charities; the 10 that report revenue took in $5.5 million. The largest by revenue: Tarratine Club of Dark Harbor ($2 million), Beacon Project ($1.2 million), Islesboro Community Center ($611,806).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Tarratine Club of Dark Harbor | 501(c)(7) | 1922 | $2 million | $2.5 million | 2024-12 | |
| Beacon Project | Housing and shelter | 501(c)(3) | 2003 | $1.2 million | $3.3 million | 2025-09 |
| Islesboro Community Center | Recreation and sports | 501(c)(3) | 2002 | $611,806 | $3.5 million | 2024-12 |
| Islesboro Islands Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1985 | $598,397 | $5.3 million | 2025-06 |
| Isleboro Pre School | 501(c)(3) | 1981 | $364,523 | $2 million | 2025-06 | |
| Islesboro Community Fund | 501(c)(3) | 1951 | $200,362 | $604,908 | 2025-07 | |
| Islesboro Affordable Property | Housing and shelter | 501(c)(3) | 1989 | $196,658 | $1.7 million | 2024-06 |
| Big Tree Boating Association | Recreation and sports | 501(c)(3) | 1997 | $118,752 | $371,645 | 2024-12 |
| Islesboro Historical Society | 501(c)(3) | 1972 | $102,286 | $633,827 | 2024-12 | |
| Islesboro Ambulance Association | 501(c)(3) | 1987 | $55,421 | $131,810 | 2025-12 | |
| Association of the Friends of the Alice L Pendleton Library | 501(c)(3) | 1990 | $0 | $0 | 2024-12 | |
| Bowen Theory Academy | Education | 501(c)(3) | 2015 | $0 | $0 | 2025-08 |
| Friends of the Islesboro Fire Department | Public safety, disaster preparedness and relief | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Islesboro Sewing Circle | Arts, culture and humanities | 501(c)(3) | 2020 | $0 | $0 | 2025-09 |
| Maple Grove Cemetery Corporation | Mutual and membership benefit | 501(c)(13) | 2013 | $0 | $0 | 2025-12 |
| Robert and Maurine Rothschild Fund Inc | 501(c)(3) | 1950 | $5.1 million | 2024-12 | ||
| Society for the Preservation of the Free Will Baptist Church of | Arts, culture and humanities | 501(c)(3) | 1993 | $0 | $0 | 2025-12 |
| Susan & Chelsea Makara Memorialfund | Youth development | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
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.