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Data / Nonprofits / New York / East Setauket

Nonprofits in East Setauket, NY: 76 registered with the IRS

76 nonprofits are registered with the IRS in East Setauket, NY, 62 of them 501(c)(3) charities; the 30 that report revenue took in $42.5 million. The largest by revenue: Alternatives for Children ($32.3 million), Three Village Teachers Association Welfare Trust Fund ($2.5 million), Play Groups School ($1.3 million). Most common causes: education (11), philanthropy, voluntarism and grantmaking foundations (9), arts, culture and humanities (7).

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Every organization, largest by revenue first

OrganizationCategoryTypeSinceRevenueAssetsFiling
Alternatives for Children501(c)(3)2002$32.3 million$16.6 million2025-06
Three Village Teachers Association Welfare Trust FundMutual and membership benefit501(c)(9)2007$2.5 million$4.4 million2025-06
Play Groups SchoolEducation501(c)(3)1975$1.3 million$2.1 million2025-06
American Federation of Teachers501(c)(5)1967$1 million$1.2 million2025-06
Three Village Swim Club IncRecreation and sports501(c)(3)2015$889,109$379,8452025-08
Sigmacamp IncEmployment501(c)(3)2014$841,525$732,0462025-12
The Carl Safina Center IncEnvironment501(c)(3)2002$756,351$2.5 million2025-05
Schoolnova at Stony Brook IncEducation501(c)(3)2015$660,081$1.1 million2025-06
Setauket Volunteer Firemans Benovlent Assoc IncHealth care501(c)(3)1994$305,240$2.7 million2024-12
Three Village Tennis Club Inc501(c)(7)1990$302,932$155,1192025-10
Setauket Fire Department IncPublic safety, disaster preparedness and relief501(c)(3)2009$213,782$1.2 million2025-12
Center for Chinese Learning at Stony Brook IncEducation501(c)(3)2006$191,803$312,4532025-10
Three Village Youth Lacrosse IncRecreation and sports501(c)(3)2017$178,988$80,7082025-10
Hope Childrens Fund LTDHuman services501(c)(3)2023$128,467$283,1912025-12
United Volleyball IncRecreation and sports501(c)(3)2010$121,849$14,7572024-12
Wise Tropics IncEnvironment501(c)(3)2019$116,811$53,4712025-12
Sights On Health IncInternational, foreign affairs and national security501(c)(3)2014$104,933$173,5192024-12
Three Village Chamber of Commerce IncCommunity improvement and capacity building501(c)(6)2008$87,472$279,6052024-12
Noble Tree Publishing IncArts, culture and humanities501(c)(3)2013$79,584$26,0572024-12
Academy of Behavorial Medicine ResearchMedical research501(c)(3)2025$77,421$192,1552024-05
North Shore Razor CorpYouth development501(c)(3)2008$67,665$3,6132024-12
Oak Hill Cemetery at Stony Brook Inc501(c)(13)1978$51,501$365,8792025-12
Li Youth Development IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2021$46,505$28,8722026-05
Three Village Stem Enrichment Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2016$45,769$45,1912026-06
Aligarh Alumni Association IncEducation501(c)(3)2008$37,085$8,3742024-12
Climate Knowledge Collective IncEnvironment501(c)(3)2024$24,981$30,8432025-12
Project Educate Africa IncEducation501(c)(3)2005$19,895$1,0332023-12
Pta New York Congress501(c)(3)1954$19,752$24,9172025-06
Hope for JavierDiseases, disorders and medical disciplines501(c)(3)2008$10,603$265,8932025-12
Higher Ground Inter-Cultural & Heritage Assoc IncArts, culture and humanities501(c)(3)2007$2,650$85,3062025-05
Allys AlliesPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2023$0$02025-12
American Legion501(c)(19)1946$0$02024-12
American Legion Auxiliary Harbor Unit 417501(c)(19)1964$0$02025-12
American Society for Pain Management Nursing Long Island IncHealth care501(c)(6)2025$0$02025-09
Art Across AgesArts, culture and humanities501(c)(3)2024
Asian American Association of Greater Stony Brook IncCommunity improvement and capacity building501(c)(3)2020$0$02026-08
Association of Physician Assistants in Cardiology IncHealth care501(c)(6)2019$0$02025-12
Bluegrass Club of Long Island IncArts, culture and humanities501(c)(3)2014$0$02025-12
Chamber of Commerce of the Mastics and ShirleyCommunity improvement and capacity building501(c)(6)2009$0$02025-12
Civil Service Employees Association501(c)(5)1970$0$02025-09
Deutsche Sprachschule Long Island Inc501(c)(3)2021$0$02025-12
Frank Melville Memorial Foundation501(c)(3)1941$2.4 million2025-12
Happy Dogs Surf Shop IncorporatedPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2024$0$02025-06
Hearts and Horses FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2016$1.5 million2025-06
Homestead Arts IncArts, culture and humanities501(c)(3)2021$0$02025-12
Hope On Planet EarthEducation501(c)(3)2025
Hope for Histiocytosis IncMedical research501(c)(3)2020$932023-12
Huangs Association USA IncReligion-related501(c)(3)2022$0$5,5102025-10
JNMC Aligarh Alumni Association of North America IncInternational, foreign affairs and national security501(c)(3)2016$0$02025-12
Jordan M Ritchie Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2024$0$02025-12
Long Island Against Trafficking IncEducation501(c)(3)2016$0$02024-12
Louis J Bove Foundation IncHealth care501(c)(3)2022$4,1502025-09
Malarkum Network and SolutionsArts, culture and humanities501(c)(3)2024$0$02024-12
Melissa K Bambino Melanoma FoundationDiseases, disorders and medical disciplines501(c)(3)2006$0$02025-06
Messiah Lutheran Church501(c)(3)1941
Mission Medic IncHealth care501(c)(3)2026
Nassau County Interscholastic Mathematics LeaguePhilanthropy, voluntarism and grantmaking foundations501(c)(3)2023$36,7642025-12
Patriot Wrestling Booster Club IncEducation501(c)(3)2011$0$02025-09
Psi Upsilon Fraternity501(c)(7)1945
Pta New York CongressEducation501(c)(3)1954$0$02026-06
Purple Summit IncEmployment501(c)(3)2020$0$3,2912025-12
Renewbyte SolutionsPublic and societal benefit501(c)(3)2025$0$02026-05
Robert W Ward Memorial Association Inc501(c)(19)1985$0$02025-12
Shore Solutions Initiative IncEnvironment501(c)(3)2024$0$02024-12
Sigmabrazil Foundation IncEducation501(c)(3)2026$0$02025-12
Stony Brook Christian Assembly501(c)(3)19642014-12
The Louis Berkowitz Family Foundation Inc501(c)(3)1984$3.5 million2025-12
Three Village Church501(c)(3)1960
Three Village Dads Foundation CorpPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2020$0$02026-08
Three Village Historical SocietyArts, culture and humanities501(c)(3)1967$0$1.4 million2023-12
Three Village Music Boosters Inc501(c)(3)1977$0$02026-08
Us Fencing Association Long Island DivisionRecreation and sports501(c)(3)2025
VFW Post 3054 IncPublic and societal benefit501(c)(19)2020$0$02025-12
Vincent Nasta Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2014$0$02025-12
Walk On Us FoundationHuman services501(c)(3)2019$0$02024-12
World Gym Community IncEducation501(c)(3)2017$0$02025-12

By cause in East Setauket, 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.