Data / Nonprofits / New York / Smithtown
Nonprofits in Smithtown, NY: 173 registered with the IRS
173 nonprofits are registered with the IRS in Smithtown, NY, 137 of them 501(c)(3) charities; the 60 that report revenue took in $510 million. The largest by revenue: St Catherine of Siena Medical Center ($267.2 million), Developmental Disabilities Institute Inc ($159.8 million), Scope Education Services ($44.9 million). Most common causes: education (15), recreation and sports (15), human services (15).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| St Catherine of Siena Medical Center | Health care | 501(c)(3) | 1946 | $267.2 million | $214.1 million | 2024-12 |
| Developmental Disabilities Institute Inc | Human services | 501(c)(3) | 1967 | $159.8 million | $102.2 million | 2024-12 |
| Scope Education Services | Education | 501(c)(3) | 1965 | $44.9 million | $27 million | 2025-08 |
| Guide Dog Foundation for the Blind Inc | 501(c)(3) | 1950 | $15.5 million | $71.7 million | 2025-06 | |
| Americas Vetdogs the Veterans K9 Corps Inc | Public and societal benefit | 501(c)(3) | 2007 | $10.2 million | $4.4 million | 2025-06 |
| American Federation of Teachers | 501(c)(5) | 1967 | $1.1 million | $943,421 | 2025-06 | |
| Suffolk County High School Hockey League Inc | Recreation and sports | 501(c)(3) | 2014 | $785,360 | $43,776 | 2025-05 |
| Environmental Centers of Setauket Smithtown Inc | Environment | 501(c)(3) | 1972 | $751,141 | $997,098 | 2025-03 |
| Smithtown Performing Arts Counselinc | Arts, culture and humanities | 501(c)(3) | 2008 | $734,453 | $2.3 million | 2025-12 |
| North Atlantic Alliance Association Inc | 501(c)(6) | 1996 | $574,168 | $196,900 | 2024-12 | |
| St Catherine of Siena Medical Center Foundation | 501(c)(3) | 1946 | $551,054 | $2.3 million | 2024-12 | |
| American Federation of Teachers | Employment | 501(c)(5) | 1967 | $545,665 | $645,597 | 2026-06 |
| Smithtown Historical Society | Arts, culture and humanities | 501(c)(3) | 1959 | $474,149 | $2.8 million | 2025-12 |
| New York State Rheumatology Society Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2005 | $462,095 | $363,674 | 2025-12 |
| Hauppauge Eagles Inc | Recreation and sports | 501(c)(3) | 2022 | $444,750 | $150,452 | 2024-12 |
| Association of Insurance and Reinsurance Run-Off Companies Inc | Community improvement and capacity building | 501(c)(6) | 2005 | $433,128 | $596,352 | 2025-12 |
| Friends of the Retired and Senior Volunteer Program of Suffolk Count | Human services | 501(c)(3) | 1999 | $424,956 | $163,963 | 2024-12 |
| Smithtown Teachers Association Benefit Fund | Employment | 501(c)(5) | 2003 | $370,619 | $173,994 | 2025-06 |
| Booster Club of Smithtown | Recreation and sports | 501(c)(3) | 1977 | $346,073 | $471,111 | 2024-12 |
| Smithtown Volunteer Exempt Firemans Benevolent Association | 501(c)(4) | 1974 | $335,716 | $2.7 million | 2025-12 | |
| Angel Guardians for the Elderly Inc | Human services | 501(c)(3) | 1976 | $202,063 | $385,416 | 2025-07 |
| Physician Staff Fund at Saint Catherines | Mutual and membership benefit | 501(c)(6) | 2013 | $198,618 | $154,668 | 2025-12 |
| Pta New York Congress | 501(c)(3) | 1954 | $194,792 | $173,440 | 2025-06 | |
| Smithtown Fire Department Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 1999 | $180,239 | $1.4 million | 2024-12 |
| Yorkie911 Rescue Inc | Animal-related | 501(c)(3) | 2011 | $179,621 | $313,675 | 2024-12 |
| National Conference of Cpa | 501(c)(6) | 1991 | $173,146 | $154,941 | 2025-10 | |
| New York City Firefighters Hockey Club Inc | 501(c)(3) | 1994 | $170,600 | $329,782 | 2025-03 | |
| Greater Smithtown Chamber of Commerce Inc | 501(c)(6) | 1991 | $167,551 | $36,178 | 2024-12 | |
| Straus Historical Society Inc | Arts, culture and humanities | 501(c)(3) | 1999 | $151,874 | $616,828 | 2025-12 |
| American Academy of Pediatrics Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 1989 | $149,300 | $239,791 | 2025-06 |
| Nurse Practitioner Association of Long Island Inc | 501(c)(3) | 1992 | $148,403 | $270,086 | 2025-12 | |
| Smithtown Cemetery Association Inc | 501(c)(13) | 1975 | $143,887 | $1 million | 2025-12 | |
| Smithtown Township Lacrosse Inc | Recreation and sports | 501(c)(3) | 2015 | $140,917 | $46,539 | 2025-07 |
| Curvy Girls Foundation Inc | Human services | 501(c)(3) | 2014 | $138,430 | $478,064 | 2025-12 |
| Pta New York Congress | 501(c)(3) | 1968 | $125,486 | $14,759 | 2025-06 | |
| Benevolent & Protective Order of Elks of the USA | 501(c)(8) | 1951 | $120,779 | $424,425 | 2026-03 | |
| Manhattan Youth Baseball League Inc | Recreation and sports | 501(c)(3) | 2000 | $113,080 | $4,411 | 2025-12 |
| Eight County Chapter Three of the American Academy of Pediatrics Inc | Education | 501(c)(3) | 1993 | $111,472 | $476,638 | 2024-12 |
| Hopeforcleo Inc | Human services | 501(c)(3) | 2022 | $110,368 | $97,180 | 2025-12 |
| Suffolk County Electrical Contractors Association | Community improvement and capacity building | 501(c)(6) | 1986 | $106,901 | $372,399 | 2026-06 |
| Royal Order of Jesters | 501(c)(10) | 1941 | $105,146 | $45,973 | 2025-12 | |
| Smithtown Township Emergency Food Pantry | Food, agriculture and nutrition | 501(c)(3) | 2011 | $98,122 | $96,379 | 2025-12 |
| Rising Tide Habilitation Services Inc | Housing and shelter | 501(c)(3) | 2024 | $93,985 | $58,993 | 2025-12 |
| Rocky Point Lacrosse Booster Club Inc | Education | 501(c)(3) | 2022 | $84,996 | $15,819 | 2024-12 |
| Strohm Foundation LTD | Diseases, disorders and medical disciplines | 501(c)(3) | 2022 | $83,913 | $47,586 | 2024-12 |
| Soulful Living for Addiction and Long Term Recovery Inc | Mental health and crisis intervention | 501(c)(3) | 2018 | $81,583 | $17,352 | 2025-06 |
| Zipper Buddy Foundation Inc | Youth development | 501(c)(3) | 2024 | $81,490 | $25,248 | 2025-12 |
| International Association of Sheet Metal Air Rail & Transportation | Employment | 501(c)(5) | 2015 | $73,995 | $68,120 | 2025-12 |
| Society for Lending Comforts To the Sick of the Township of Smithtown | 501(c)(3) | 1966 | $59,388 | $368,173 | 2024-12 | |
| Notre Dame Club of Long Island Inc | Education | 501(c)(3) | 1983 | $59,126 | $498,633 | 2025-06 |
| 4TH Precinct Fellowship Inc | Community improvement and capacity building | 501(c)(3) | 2016 | $57,515 | $44,140 | 2025-12 |
| Suffolk County Tennis and Education Foundation Inc | Recreation and sports | 501(c)(3) | 2003 | $55,198 | $24,549 | 2025-12 |
| Long Island Greenbelt Trail Conference Inc | Environment | 501(c)(3) | 2016 | $47,035 | $256,188 | 2024-12 |
| Hauppauge Eagles Booster Club Inc | Recreation and sports | 501(c)(3) | 2010 | $45,819 | $26,836 | 2023-06 |
| Pta New York Congress | 501(c)(3) | 1985 | $30,387 | $27,506 | 2026-06 | |
| Ivy League School Foundation Inc | Education | 501(c)(3) | 2009 | $18,172 | $34,274 | 2025-12 |
| Kimberly Coffey Foundation Inc | Education | 501(c)(3) | 2015 | $13,710 | $279,106 | 2025-12 |
| Smithtown Fire Chiefs Organization Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2005 | $13,590 | $34,999 | 2025-12 |
| Joseph P McKenna March Forth Foundation Inc | Human services | 501(c)(3) | 2021 | $13,572 | $5,718 | 2025-12 |
| Michael McDermott Memorial Foundation Inc | Education | 501(c)(3) | 2020 | $7,615 | $11,020 | 2025-12 |
| A Quiet Place Inc | Religion-related | 501(c)(3) | 2018 | $0 | $0 | 2023-12 |
| Actgive Ministries Inc | Religion-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Alpha and Omega Church of God | 501(c)(3) | 1972 | ||||
| American Federation of Teachers | 501(c)(5) | 1967 | $0 | $0 | 2026-06 | |
| American Federation of Teachers | Employment | 501(c)(5) | 1967 | $0 | $0 | 2025-06 |
| American Federations of Teachers | Community improvement and capacity building | 501(c)(5) | 2014 | $0 | $0 | 2025-06 |
| American Legion | 501(c)(19) | 1946 | $0 | $0 | 2025-12 | |
| Ancient Order of Hibernians in America | 501(c)(8) | 1945 | $0 | $0 | 2025-12 | |
| Angels 4 Compassion Inc | Health care | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Astha USA Inc | Civil rights, social action and advocacy | 501(c)(3) | 2022 | $1 | 2023-12 | |
| Banyan Tree Roots Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $10.7 million | 2025-12 | |
| Brighten Presbyterian Church of N J | Religion-related | 501(c)(3) | 2003 | |||
| Bringing Out the Smiles Inc | Human services | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Brucies Angels | Animal-related | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Charity Snake LTD | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $1 | 2025-09 |
| Chavurat Emet | Religion-related | 501(c)(3) | 2004 | |||
| Christian Cultural Center of Long Island Inc | Religion-related | 501(c)(3) | 2021 | |||
| Christian Word of Faith Ministries | Religion-related | 501(c)(3) | 2016 | |||
| Christophers Strength Foundation Corp | Education | 501(c)(3) | 2024 | |||
| Church of St Thomas of Canterbury | 501(c)(3) | 1972 | 2016-12 | |||
| Circle of Life Wellness Foundation | Human services | 501(c)(3) | 2025 | |||
| Civil Service Employees Association | 501(c)(5) | 1947 | $0 | $0 | 2025-09 | |
| Condor Foundation Inc | Science and technology | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Connetquot River Dinghy Club | 501(c)(3) | 2025 | ||||
| Cornell Asian Alumni Association Inc | 501(c)(3) | 1991 | $0 | $0 | 2025-12 | |
| Dante Depinto Memorial Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $3 | 2025-12 | |
| Dongan Patent Lodge No 1134 Free & Accepted Masons | Mutual and membership benefit | 501(c)(10) | 2018 | $0 | $0 | 2026-05 |
| Dr Paul E Kirdlay Memorial Fund | 501(c)(3) | 2010 | $0 | $0 | 2025-12 | |
| Dynamics Twirling Organization Inc | Recreation and sports | 501(c)(7) | 2007 | $0 | $0 | 2025-08 |
| Elbr Inc | Community improvement and capacity building | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Elder Watch Foundation | Human services | 501(c)(3) | 2006 | $0 | $53 | 2025-12 |
| Experimental Aircraft Association CH 594 Bay Shore Ny Inc | 501(c)(3) | 1981 | $0 | $0 | 2024-12 | |
| Fdny Marine Corps Association | Public and societal benefit | 501(c)(3) | 2018 | $0 | $0 | 2023-12 |
| Federated Garden Clubs of New York State Inc | Environment | 501(c)(3) | 2006 | $0 | $0 | 2026-02 |
| Firefighter Cancer Awareness & Mentoring Nys Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| First Presbyterian Church of Smithtown | 501(c)(3) | 1975 | ||||
| Free & Accepted Masons of New York | 501(c)(10) | 1940 | $0 | $0 | 2025-12 | |
| Friends of Caleb Smith Preserve | Environment | 501(c)(3) | 2000 | $0 | $0 | 2025-12 |
| Friends of Music of Smithtown Inc | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Grace Church | 501(c)(3) | 1960 | 2006-12 | |||
| Gus Alfieri Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2026 | |||
| Happy Tails Dog Rescue Inc | Animal-related | 501(c)(3) | 2015 | $0 | $1 | 2025-12 |
| Hauppauge Eagles Class 2032 Corp | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Hauppauge Wrestling Club Inc | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2026-03 |
| Heros 4 Heros Inc | Food, agriculture and nutrition | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Hildenbrand Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2011 | $10.3 million | 2025-12 | |
| Hope of Light Despite Darkness Inc | Human services | 501(c)(3) | 2022 | $0 | $1 | 2024-12 |
| Human Potential Foundation | 501(c)(3) | 1985 | $8.7 million | 2024-11 | ||
| Iuv Phase 1B Housing Development Fund Corporation | Community improvement and capacity building | 501(c)(4) | 2025 | $0 | $0 | 2025-12 |
| Iuv Phase 1a Housing Development Fund Corporation | Housing and shelter | 501(c)(4) | 2024 | $0 | $0 | 2025-12 |
| James Helping Hands Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 | |
| Joni E Gladowsky Breast Cancer Foundation Trust 07252002 | Medical research | 501(c)(3) | 2004 | $19,824 | 2024-12 | |
| Kindsun LTD | Environment | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Long Island Blue Jays Jr Drum and Bugle Corps Inc | 501(c)(3) | 1987 | $0 | $0 | 2024-12 | |
| Long Island Chapter Honorable Order of Kentucky Colonels Inc | Human services | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Long Island Reef Association - Lira Inc | Human services | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Long Island Senior Games Inc | Recreation and sports | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Maltese Family Fund Inc | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| March of the Blanketeers | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Ministerio Jesucristo Vive Jesuschrist Live Ministry Inc | Religion-related | 501(c)(3) | 2010 | $0 | $1 | 2023-12 |
| Muttontown Horsemens Assoc Inc | Animal-related | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| New York Chongshin College and Theological Seminary | Education | 501(c)(3) | 1995 | $0 | $0 | 2025-12 |
| New York Metro Blind Hockey Inc | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| New York Tamil Academy Inc | Education | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Northport Pipe and Drum Band Inc | Arts, culture and humanities | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Nu Phi Zeta Chapter of Zeta Phi Beta Sorority | 501(c)(7) | 2021 | $0 | $0 | 2025-06 | |
| Order of Eastern Star of New York | 501(c)(8) | 1972 | $0 | $0 | 2025-08 | |
| Order of the Amaranth Inc Supreme Council | 501(c)(8) | 1972 | $0 | $0 | 2026-06 | |
| Parose Luys Inc | Civil rights, social action and advocacy | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Police Holy Name Society of Suffolk County | Community improvement and capacity building | 501(c)(4) | 2001 | $0 | $0 | 2025-12 |
| 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 | 501(c)(3) | 1954 | $0 | $0 | 2026-06 | |
| Pta New York Congress | Education | 501(c)(3) | 1954 | $0 | $0 | 2026-06 |
| Pta New York Congress | 501(c)(3) | 1954 | $0 | $0 | 2025-06 | |
| Pta New York Congress | 501(c)(3) | 1967 | $0 | $35,826 | 2025-06 | |
| Pta New York Congress | 501(c)(3) | 1954 | $0 | $0 | 2024-06 | |
| Puerto Rican Curling Federation | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-06 |
| Quinn Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $400,057 | 2025-06 | |
| Reykjavik Roj Inc | Mutual and membership benefit | 501(c)(10) | 2026 | $0 | $0 | 2025-12 |
| Rotary International | 501(c)(4) | 1966 | $0 | $0 | 2026-06 | |
| Royal Arch Masons of New York 288 Asharokan | 501(c)(10) | 1972 | $0 | $0 | 2025-12 | |
| Second Chance Sanctuary Inc | Human services | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Semper United Inc | Public and societal benefit | 501(c)(3) | 2023 | $0 | $0 | 2024-06 |
| Sidr Inc | Recreation and sports | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Smithtown Charitable Fund Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $0 | $0 | 2026-06 |
| Smithtown Community Band | Arts, culture and humanities | 501(c)(3) | 2011 | $0 | $0 | 2026-06 |
| Smithtown Gospel Tabernacle Inc | 501(c)(3) | 1968 | ||||
| Smithtown High School East Touchdown Club | Human services | 501(c)(3) | 2025 | |||
| Smithtown Landing Mens Golf Asociation Inc | Recreation and sports | 501(c)(7) | 2023 | $0 | $0 | 2025-12 |
| Smithtown Post 10870 Veterans of Foreign Wars of the United States | Public and societal benefit | 501(c)(19) | 2019 | $0 | $0 | 2025-12 |
| Smithtown Robotics Team 810 Booster Club Inc | Education | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Smithtown Stitchers Inc | 501(c)(3) | 1988 | $0 | $0 | 2025-12 | |
| Sons of Italy in America | 501(c)(8) | 1941 | $0 | $0 | 2023-09 | |
| Sons of Italy in America | Mutual and membership benefit | 501(c)(8) | 1941 | $0 | $0 | 2025-12 |
| Spheres of Influence Inc | Community improvement and capacity building | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Spiritual Assembly of the Bahais of Smithtown Town | Religion-related | 501(c)(3) | 1995 | |||
| St Andrew Lutheran Church | 501(c)(3) | 1988 | ||||
| Suffolk County Womens Business Enterprise Coalition Inc | Employment | 501(c)(3) | 1999 | $0 | $0 | 2025-08 |
| Suffolk Firefighters Hockey Club | Public and societal benefit | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Suffolk Youth Bowling Association Inc | Recreation and sports | 501(c)(3) | 2023 | $21,404 | 2025-08 | |
| Sunrise Rotary Charitable Fund Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| The Gals Are Here Foundation Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 2026 | |||
| The Suffolk County Senior Citizens Chorus Inc | 501(c)(3) | 1986 | $0 | $0 | 2025-07 | |
| The@mary F Smith Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2006 | $280,597 | 2025-12 | |
| Therapy Dogs of Long Island | Human services | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Tom Collins-Chris Panatier 9-11 Memorial Foundation Inc | Education | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Tomorrows Smile Today Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Top Ministries International | Religion-related | 501(c)(3) | 2025 | |||
| V1 Church Inc | Religion-related | 501(c)(3) | 2016 | |||
| Vita Gallery LTD | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Wild Harvest Provisions | Food, agriculture and nutrition | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| World Messianic Fellowships Inc Co | 501(c)(3) | 1979 |
By cause in Smithtown, NY
- Education 15
- Recreation and sports 15
- Human services 15
- Religion-related 10
- Philanthropy, voluntarism and grantmaking foundations 10
- Community improvement and capacity building 8
- Arts, culture and humanities 8
- Public and societal benefit 5
- Employment 5
- Environment 5
- Diseases, disorders and medical disciplines 5
- Mutual and membership benefit 4
- Animal-related 4
- Food, agriculture and nutrition 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.