Data / Nonprofits / New York / Holtsville
Nonprofits in Holtsville, NY: 50 registered with the IRS
50 nonprofits are registered with the IRS in Holtsville, NY, 33 of them 501(c)(3) charities; the 18 that report revenue took in $69 million. The largest by revenue: Craft Division of Local 1049 Health and Welfare Fund ($37.4 million), Island Rehabilitation and Nursing Center Inc ($18 million), International Brotherhood of Electrical Workers ($5.5 million). Most common causes: education (5), arts, culture and humanities (4), human services (3).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Craft Division of Local 1049 Health and Welfare Fund | 501(c)(9) | 1965 | $37.4 million | $127.3 million | 2024-12 | |
| Island Rehabilitation and Nursing Center Inc | Housing and shelter | 501(c)(3) | 2001 | $18 million | $12.5 million | 2024-12 |
| International Brotherhood of Electrical Workers | 501(c)(5) | 1940 | $5.5 million | $6.9 million | 2024-12 | |
| Ibew Local 1049 Craft Division Skill Improvement Fund | Education | 501(c)(3) | 2016 | $3.3 million | $16.9 million | 2024-12 |
| Building Industry Fund | 501(c)(6) | 2025 | $2 million | $5.6 million | 2025-06 | |
| American Federation of Teachers | 501(c)(5) | 1967 | $1.3 million | $621,573 | 2026-06 | |
| Inrc Services Corp | Housing and shelter | 501(c)(3) | 2006 | $639,179 | $10.9 million | 2024-12 |
| Thomas Hope Foundation Inc | Mental health and crisis intervention | 501(c)(3) | 2014 | $593,782 | $131,435 | 2025-02 |
| Ibew Local 1049 Line Clearance Tree Trimming Skill Improvement Fund | Employment | 501(c)(5) | 2002 | $167,803 | $986,876 | 2024-12 |
| Council of Insurance Brokers of Greater New York Inc | 501(c)(6) | 1995 | $52,677 | $109,520 | 2024-12 | |
| National Treasury Employees Union | 501(c)(5) | 1945 | $50,583 | $281,974 | 2025-09 | |
| 1049 Craft Division Skill Improvement Realty Corp | Community improvement and capacity building | 501(c)(2) | 2017 | $24,824 | $3.9 million | 2024-12 |
| Ibew Local 1049 Vacation Fund | 501(c)(9) | 1998 | $17,146 | $481,611 | 2024-12 | |
| United States Police Canine Association | Education | 501(c)(3) | 2007 | $14,286 | $29,909 | 2025-12 |
| Chronic Migraine Awareness Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2014 | $11,180 | $12,713 | 2025-07 |
| New York State Impaired Drivers Progam Directors Association | Mental health and crisis intervention | 501(c)(3) | 2016 | $7,674 | $14,786 | 2024-12 |
| Do You Hear the Children Sing Inc | Arts, culture and humanities | 501(c)(3) | 2022 | $3,396 | $1,659 | 2024-12 |
| Amvets | 501(c)(19) | 1945 | $2,274 | $19,339 | 2025-12 | |
| 1049 Management Corporation | Community improvement and capacity building | 501(c)(2) | 2009 | $0 | $62 | 2024-12 |
| Amve | 501(c)(19) | 1945 | $0 | $0 | 2024-08 | |
| Art With Soul Inc | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Beat for Good | Health care | 501(c)(3) | 2026 | |||
| Big Cuz Corp | Youth development | 501(c)(3) | 2025 | |||
| Bread of Life Foundation Corp | Food, agriculture and nutrition | 501(c)(3) | 2023 | $0 | $0 | 2025-09 |
| Brookhaven Service Center Charities Foundation | Human services | 501(c)(3) | 1999 | $0 | $0 | 2025-12 |
| Civil Service Employees Association | 501(c)(5) | 1970 | $0 | $0 | 2025-09 | |
| Civil Service Employees Association | 501(c)(5) | 1970 | $0 | $0 | 2025-09 | |
| Columbiettes Incorporated | Mutual and membership benefit | 501(c)(10) | 1977 | $0 | $0 | 2025-08 |
| Connetquot Swimming & Diving Club | Recreation and sports | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Ellejay S Designs Inc | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $0 | 2024-08 |
| Facey Cares | Food, agriculture and nutrition | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Hire-National Inc | 501(c)(3) | 1990 | $0 | $0 | 2025-12 | |
| Holtsville Fire Department | Public safety, disaster preparedness and relief | 501(c)(3) | 2025 | |||
| Ibew Local 1049 Sports and Outdoors Committee Inc | Recreation and sports | 501(c)(7) | 2024 | $0 | $0 | 2024-12 |
| Jesus Is Lord Church of Holtsville Inc | Religion-related | 501(c)(3) | 1982 | |||
| Late Knight Warriors | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $0 | $0 | 2026-01 |
| Maryrose McEvoy Ministries Inc | Religion-related | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Nanas Tote Bags Inc | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Parent Booster USA Inc | Education | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Protect Allergic Kids | Diseases, disorders and medical disciplines | 501(c)(3) | 2007 | $0 | $0 | 2026-04 |
| Pta New York Congress | Education | 501(c)(3) | $0 | $0 | 2026-06 | |
| Pta New York Congress | 501(c)(3) | 1954 | $0 | $0 | 2026-06 | |
| 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 |
| Second Loves Inc | Animal-related | 501(c)(3) | 2014 | $0 | $2,891 | 2025-03 |
| South Shore Community Church An Evangelical Free Church | 501(c)(3) | 1965 | ||||
| Spectrum of Dreams Inc | 501(c)(3) | 2014 | $0 | $0 | 2024-12 | |
| Support Committee at Calverton National Cemetery | Arts, culture and humanities | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Tinkers Fishing Club Inc | Recreation and sports | 501(c)(7) | 2012 | $0 | $0 | 2025-12 |
| Webound Inc | Human services | 501(c)(3) | 2025 |
By cause in Holtsville, NY
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.