Data / Nonprofits / New York / PRT Jefferson
Nonprofits in PRT Jefferson, NY: 78 registered with the IRS
78 nonprofits are registered with the IRS in PRT Jefferson, NY, 64 of them 501(c)(3) charities; the 29 that report revenue took in $299.5 million. The largest by revenue: St Charles Hospital Corp ($272.7 million), Way Back Inc ($6.8 million), The Ministry for Hope Inc ($5.9 million). Most common causes: philanthropy, voluntarism and grantmaking foundations (9), arts, culture and humanities (7), education (5).
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 |
|---|---|---|---|---|---|---|
| St Charles Hospital Corp | Health care | 501(c)(3) | 1946 | $272.7 million | $159.6 million | 2024-12 |
| Way Back Inc | Human services | 501(c)(3) | 1982 | $6.8 million | $8.9 million | 2024-12 |
| The Ministry for Hope Inc | 501(c)(3) | 1985 | $5.9 million | $5.5 million | 2025-03 | |
| Port Jefferson Free Library | Education | 501(c)(3) | 1972 | $5.2 million | $14.6 million | 2025-06 |
| JTM Health Facilities Foundation Inc | 501(c)(3) | 1985 | $2.5 million | $10.3 million | 2024-12 | |
| Theatre Three Productions Inc | Arts, culture and humanities | 501(c)(3) | 1971 | $1.7 million | $310,580 | 2025-06 |
| St Charles Hospital Foundation | 501(c)(3) | 1946 | $1.3 million | $5.3 million | 2024-12 | |
| Cedar Hill Cemetery Association | 501(c)(13) | 1937 | $447,167 | $1.1 million | 2024-12 | |
| Maritime Explorium at Port Jeff Harbor | Arts, culture and humanities | 501(c)(3) | 2005 | $370,849 | $87,546 | 2024-12 |
| Noahs Ark Day Care Center of Port Jefferson Inc | Human services | 501(c)(3) | 1994 | $348,997 | $79,125 | 2025-06 |
| TWB Residential Opportunities II Inc | Human services | 501(c)(3) | 2001 | $309,773 | $519,937 | 2024-12 |
| TWB Residential Opportunities Inc | Housing and shelter | 501(c)(3) | 1999 | $285,403 | $413,205 | 2024-12 |
| Greater Port Jefferson Chamber of Commerce Inc | 501(c)(6) | 1992 | $216,410 | $64,142 | 2025-12 | |
| Port Jefferson Fire Dept Inc | 501(c)(3) | 1991 | $213,279 | $847,874 | 2026-03 | |
| Port Jefferson B I D Management Association Inc | Community improvement and capacity building | 501(c)(6) | 2000 | $148,922 | $169,478 | 2025-05 |
| Port Jefferson Volunteer Firemens Benevolent Association Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 1991 | $139,163 | $1.1 million | 2025-12 |
| Historical Society of Greater Port Jefferson | Arts, culture and humanities | 501(c)(3) | 1999 | $138,899 | $759,079 | 2024-12 |
| Greater Port Jefferson Arts Council Inc | 501(c)(3) | 1987 | $135,147 | $41,101 | 2024-12 | |
| Medical Staff of St Charles Hospital | Community improvement and capacity building | 501(c)(4) | 2015 | $118,993 | $396,858 | 2025-12 |
| Long Island Foundation for Education & Sports Inc | Recreation and sports | 501(c)(3) | 2003 | $118,206 | $1,608 | 2024-12 |
| Port Jefferson Senior Prom Inc | Youth development | 501(c)(3) | 2023 | $91,265 | $56,366 | 2025-08 |
| Port Jefferson Yacht Club Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2012 | $86,723 | $1,586 | 2024-12 |
| Port Jefferson Harbor Education and Arts Conservancy | Arts, culture and humanities | 501(c)(3) | 2005 | $83,118 | $89,514 | 2024-12 |
| Long Island Seaport & Ecocenter Inc | Arts, culture and humanities | 501(c)(3) | 2015 | $68,267 | $109,758 | 2024-12 |
| Cat Care Inc | Animal-related | 501(c)(3) | 2017 | $44,163 | $1,449 | 2025-12 |
| Knights of Columbus | Mutual and membership benefit | 501(c)(8) | 1940 | $35,731 | $96,034 | 2025-12 |
| New York Association of Naturopathic Physicians Inc | Community improvement and capacity building | 501(c)(6) | 2004 | $23,867 | $33,318 | 2024-12 |
| Thomas Matthew Miloscia Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $17,089 | $61,257 | 2024-12 |
| Global Nest Ministries Inc | Religion-related | 501(c)(3) | 2018 | $3,247 | $25,289 | 2024-12 |
| Ahepa 319 Port Jefferson Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Aidan Kaminska My Day Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| All Glory To God Ministry | Religion-related | 501(c)(3) | 2026 | |||
| Alliance of Divine Love Affiliate Chapel 2298 | 501(c)(3) | 1977 | ||||
| Alliance of Divine Love Inc | 501(c)(3) | 1977 | ||||
| Alliance of Divine Love Inc | 501(c)(3) | 1977 | ||||
| Alliance of Divine Love Inc | 501(c)(3) | 1977 | ||||
| Alliance of Divine Love Inc | 501(c)(3) | 1977 | ||||
| Alliance of Divine Love Inc | 501(c)(3) | 1977 | ||||
| American Federation of Teachers | 501(c)(5) | 1967 | $0 | $0 | 2025-08 | |
| American Federation of Teachers | 501(c)(5) | 1945 | $0 | $0 | 2025-06 | |
| American Federation of Teachers | 501(c)(5) | 1945 | $0 | $0 | 2025-06 | |
| Center for Peaceful Solutions Inc | Crime and legal-related | 501(c)(3) | 2016 | $0 | $1 | 2025-12 |
| Christ Church | 501(c)(3) | 1972 | ||||
| Christopher J Malvetti Memorial Fund Inc | Education | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Columbiettes Incorporated | 501(c)(10) | 1977 | $0 | $0 | 2026-08 | |
| First Presbyterian Church of Port Jefferson | 501(c)(3) | 1964 | 2013-12 | |||
| Frey Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2003 | $3.3 million | 2024-12 | |
| Friends of the Port Jefferson Free Library | Education | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Girls PJ Lax Inc | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-08 |
| Global Prose | International, foreign affairs and national security | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Hamd Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $28.5 million | 2024-12 | |
| Harborview Christian Church Inc | Religion-related | 501(c)(3) | 2020 | |||
| Havanada Catalyst Fund USA | International, foreign affairs and national security | 501(c)(3) | 2026 | |||
| Hellenic Community of Northern Suffolk Inc | Religion-related | 501(c)(3) | 2022 | |||
| Jaegers Run Animal Rescue Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 | |
| Jewish War Veterans of the United States of America Inc | 501(c)(4) | 1946 | $0 | $0 | 2025-12 | |
| Latino Arts Council of Long Island Inc | Arts, culture and humanities | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Long Island Center for Environmental Activism Inc | Environment | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Long Island Legal Care | Crime and legal-related | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Long Island Symphonic Choral Assoc Inc | Arts, culture and humanities | 501(c)(3) | 1975 | $0 | $0 | 2025-08 |
| Love Without Barriers JCL Foundation Fundacion Amor Sin Barr | Human services | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Maritime Investigation Group Inc | Environment | 501(c)(3) | 2024 | |||
| Masonic War Veterans of the State of New York Inc | 501(c)(4) | 1952 | $0 | $0 | 2024-12 | |
| New Life Assembly | 501(c)(3) | 1964 | ||||
| New York State Congress of Parent & Teachers Association | 501(c)(3) | 1954 | $0 | $0 | 2026-06 | |
| PJ Nation Wrestling Inc | Mental health and crisis intervention | 501(c)(3) | 2019 | $0 | $0 | 2025-03 |
| Port Jefferson Lions Community Service Fund Inc | Community improvement and capacity building | 501(c)(3) | 1980 | $0 | $1 | 2024-06 |
| Port Jefferson Rotary Club Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Port Jefferson Soccer Booster Club | Education | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Pta New York Congress | 501(c)(3) | 1954 | $0 | $0 | 2026-06 | |
| Pta New York Congress | Education | 501(c)(3) | 1954 | $0 | $0 | 2026-06 |
| Quality Parks Inc | Recreation and sports | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Rotary International | 501(c)(4) | 1942 | $0 | $0 | 2025-06 | |
| Royal Educational Foundation of Port Jefferson Incorporated | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $18,176 | 2024-06 | |
| St Charles Corporation | 501(c)(3) | 1946 | $0 | $0 | 2025-12 | |
| Suwasset Garden Club | 501(c)(4) | 1941 | $0 | $0 | 2026-03 | |
| United States Power Squadrons | 501(c)(3) | 1949 | $0 | $0 | 2026-03 | |
| Whispers Bridge Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
By cause in PRT Jefferson, NY
- Philanthropy, voluntarism and grantmaking foundations 9
- Arts, culture and humanities 7
- Education 5
- Community improvement and capacity building 4
- Human services 4
- Religion-related 4
- Recreation and sports 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.