Data / Nonprofits / New York / Greenport
Nonprofits in Greenport, NY: 48 registered with the IRS
48 nonprofits are registered with the IRS in Greenport, NY, 41 of them 501(c)(3) charities; the 25 that report revenue took in $75.3 million. The largest by revenue: Peconic Landing at Southold Inc ($40.2 million), San Simeon By the Sound Center for Nursing and Rehabilitation ($17.7 million), Eastern Long Island Hospitalfoundation ($4.8 million). Most common causes: arts, culture and humanities (8), religion-related (5), health care (3).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Peconic Landing at Southold Inc | Human services | 501(c)(3) | 1999 | $40.2 million | $158.4 million | 2024-12 |
| San Simeon By the Sound Center for Nursing and Rehabilitation | Health care | 501(c)(3) | 2004 | $17.7 million | $6 million | 2024-12 |
| Eastern Long Island Hospitalfoundation | Health care | 501(c)(3) | 2006 | $4.8 million | $5.9 million | 2024-12 |
| North Fork Housing Alliance Inc | Housing and shelter | 501(c)(3) | 1983 | $3.4 million | $3.4 million | 2024-12 |
| Peconic Landing at Southold Inc | 501(c)(3) | 1999 | $2.3 million | $0 | 2024-12 | |
| North Fork Arts Center Inc | Arts, culture and humanities | 501(c)(3) | 2023 | $1.5 million | $6 million | 2024-12 |
| Floyd Memorial Library | 501(c)(3) | 1960 | $1.2 million | $2.9 million | 2025-06 | |
| Peconic Landing at Southold Inc | 501(c)(3) | 1999 | $1.1 million | $216,516 | 2024-12 | |
| Eastern Long Island Hospital Assoc Inc | Health care | 501(c)(3) | 1948 | $1 million | $11 million | 2024-12 |
| East End Seaport Museum and Marine | Community improvement and capacity building | 501(c)(3) | 1992 | $576,525 | $538,539 | 2024-12 |
| American Legion | Public and societal benefit | 501(c)(19) | 1946 | $260,139 | $804,970 | 2025-12 |
| North Fork Parish Outreach Inc | 501(c)(3) | 2017 | $204,645 | $577,722 | 2025-08 | |
| Railroad Museum of Long Island | Arts, culture and humanities | 501(c)(3) | 1994 | $191,990 | $674,510 | 2025-12 |
| North Fork Women for Women Fund | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1993 | $106,382 | $590,906 | 2025-12 |
| The Sterling Cemetery | Mutual and membership benefit | 501(c)(13) | 2001 | $104,943 | $610,604 | 2025-12 |
| North Fork Audubon Society | 501(c)(3) | 1974 | $86,682 | $156,931 | 2025-12 | |
| Village of Greenport B I D | Community improvement and capacity building | 501(c)(6) | 2018 | $86,296 | $143,228 | 2025-12 |
| San Simeon By the Sound Inc | Religion-related | 501(c)(3) | 1980 | $81,588 | $608,935 | 2023-12 |
| Friends of Mitchell Park Inc | Environment | 501(c)(3) | 2014 | $60,133 | $973,520 | 2024-12 |
| Upsculpt Inc | Arts, culture and humanities | 501(c)(3) | 2019 | $49,886 | $6,969 | 2025-12 |
| Triangle Yacht Club Inc | 501(c)(7) | 1973 | $43,199 | $29,592 | 2025-12 | |
| Project Genesis Interfaith Inc | Religion-related | 501(c)(3) | 2019 | $32,129 | $5,633 | 2025-12 |
| Rotary Club of Greenport Charitable Fund Inc | Public and societal benefit | 501(c)(3) | 2017 | $30,752 | $36,042 | 2025-06 |
| Long Island Baroque Ensemble Inc | Arts, culture and humanities | 501(c)(3) | 1978 | $30,427 | $7,004 | 2026-06 |
| Yuntos | Human services | 501(c)(3) | 2019 | $655 | $1 | 2024-06 |
| Agrocouncil | Food, agriculture and nutrition | 501(c)(3) | 2025 | |||
| Art Soul Inc | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Brecknock Hall Foundation Inc | Arts, culture and humanities | 501(c)(3) | 2006 | $153,600 | 2024-12 | |
| Burton Potter Post 185 | 501(c)(4) | 1954 | $0 | $0 | 2025-12 | |
| Church of the Holy Trinity | 501(c)(3) | 1972 | ||||
| Congregation Tifereth Israel | Religion-related | 501(c)(3) | 2012 | |||
| East End Church of Christ Inc | Religion-related | 501(c)(3) | 2002 | |||
| Free & Accepted Masons of New York | 501(c)(10) | 1972 | $0 | $0 | 2024-12 | |
| Glory Going Green Inc | Youth development | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Greenport Auditorium Inc | Community improvement and capacity building | 501(c)(3) | 2019 | $0 | $0 | 2023-12 |
| Greenport Teachers Association | 501(c)(5) | 2026 | $0 | $0 | 2026-06 | |
| Gwendolyn Halsy-Albertson Private Foundation Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $445,447 | 2025-12 | |
| Hold Fast Fund Inc | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Holy Trinity Church | 501(c)(3) | 1973 | ||||
| Iglesia Alfa Y Omega | Religion-related | 501(c)(3) | 2001 | |||
| Metis Foundation | International, foreign affairs and national security | 501(c)(3) | 2016 | $330 | 2025-12 | |
| More Good Today Inc | 501(c)(3) | 2023 | $0 | $0 | 2025-12 | |
| National Society of the Daughters of the American Revolution | 501(c)(3) | 1969 | $0 | $0 | 2025-12 | |
| Northeast Stage | 501(c)(3) | 1989 | $0 | $0 | 2025-12 | |
| Odysseus World Federation of Cephalonian & Ithacian Societies | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| One Puppy at A Time | Animal-related | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Paul Drum Life Experience Project Inc | Environment | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Stirling Historical Society | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
By cause in Greenport, NY
- Arts, culture and humanities 8
- Religion-related 5
- Health care 3
- Community improvement and capacity building 3
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.