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Data / Nonprofits / New York / West Islip

Nonprofits in West Islip, NY: 106 registered with the IRS

106 nonprofits are registered with the IRS in West Islip, NY, 89 of them 501(c)(3) charities; the 35 that report revenue took in $1.01 billion. The largest by revenue: Good Samaritan University Hospital ($934 million), Our Lady of Consolation Nursing & Rehabilitative Care Center ($50 million), West Islip Youth Enrichment Services Incorporated ($6.8 million). Most common causes: community improvement and capacity building (8), philanthropy, voluntarism and grantmaking foundations (8), recreation and sports (7).

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

OrganizationCategoryTypeSinceRevenueAssetsFiling
Good Samaritan University HospitalHealth care501(c)(3)1946$934 million$1.22 billion2024-12
Our Lady of Consolation Nursing & Rehabilitative Care CenterHealth care501(c)(3)1946$50 million$52.2 million2024-12
West Islip Youth Enrichment Services IncorporatedHuman services501(c)(3)1988$6.8 million$7.7 million2025-12
Bridges AcademyEducation501(c)(3)2014$4.8 million$4.3 million2025-06
Good Samaritan Hospital Foundation501(c)(3)1946$4.2 million$15 million2024-12
National Cancer Center IncDiseases, disorders and medical disciplines501(c)(3)1953$3.6 million$1.9 million2025-03
West Islip Soccer Club IncRecreation and sports501(c)(3)2024$863,939$546,9342025-07
Postpartum Resource Center of New York IncMental health and crisis intervention501(c)(3)2000$515,162$427,1732022-12
Good Samaritan Hospital Self Insurance Against Malpractice TrusMutual and membership benefit501(c)(3)1980$279,598$5.6 million2024-12
After School Kids Under Supervision IncHuman services501(c)(3)2012$272,063$99,2142025-06
Medical Staff of Good Samaritan Hospital Medical CenterCommunity improvement and capacity building501(c)(6)2014$231,429$412,1602025-12
Little League Baseball Inc501(c)(3)1967$211,844$120,5952025-09
West Islip Swim Club Inc501(c)(3)1993$167,000$172,1122025-08
Ny Finest Football IncRecreation and sports501(c)(3)2019$162,137$51,8162024-12
American Legion501(c)(19)1946$147,764$70,3392024-12
Long Island Express Fastpitch Softball IncRecreation and sports501(c)(3)2009$138,928$29,2902025-08
Nassau Counselors Association Inc501(c)(6)1996$136,216$359,6182025-06
West Islip Breast Cancer Coalition for Long Island Inc501(c)(3)1993$120,279$152,3082024-12
Lions Youth Cheerleading IncRecreation and sports501(c)(3)2022$119,234$85,3352024-12
Oak Neck Lane Association IncCommunity improvement and capacity building501(c)(4)2014$113,256$710,7462026-04
Parish Resource Center of Long IslandReligion-related501(c)(3)1985$109,561$20,5512025-06
West Islip Youth Basketball IncYouth development501(c)(3)2020$84,211$74,1792025-08
Metropolitan Section of New York and New Jersey Institute of TranspScience and technology501(c)(3)2008$79,587$124,0212025-12
PS I Love You Day IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2019$77,565$170,2822025-12
West Islip Youth Lacrosse IncRecreation and sports501(c)(3)2016$68,000$41,5162024-12
Suffolk County Womens Basketball Coaches Association Scwbca CorpRecreation and sports501(c)(3)2025$59,258$11,3952025-08
Kathleen Tortora CharityDiseases, disorders and medical disciplines501(c)(3)2021$58,477$7,3412024-12
Long Island Metro RetrouvailleReligion-related501(c)(3)2015$53,237$55,2552025-12
Make It Count Foundation IncHousing and shelter501(c)(3)2010$36,674$62,0712024-12
Willetts Point Club IncCommunity improvement and capacity building501(c)(4)2003$34,361$224,5082024-12
Pta New York Congress501(c)(3)1961$16,894$12,5452026-06
Knights of ColumbusMutual and membership benefit501(c)(8)1940$10,437$646,1712026-06
Darien Fox MinistriesInternational, foreign affairs and national security501(c)(3)2008$8,709$1,8562025-12
Uplift Serve & Empower FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2024$8,389$5,9712025-12
Queens County ConferenceMutual and membership benefit501(c)(10)2021$4,277$10,3362025-12
American Federation of Teachers501(c)(5)1967$0$02026-06
American Legion Auxiliary501(c)(19)1946$0$02025-09
Andrew Fund IncHealth care501(c)(3)2014$0$02024-12
Applied Behavior Analysis-Parent Teacher OrganizationEducation501(c)(3)2000$0$02025-06
Bella Bast Rescue IncAnimal-related501(c)(3)2011$0$02023-12
Brotherhood of Locomotive Engrs and Trainmen Long Is Gen Cmte of Adj501(c)(5)1940
Capitano Foundation Ua 041097Philanthropy, voluntarism and grantmaking foundations501(c)(3)1997$2 million2025-12
Catholic Daughters of the Americas501(c)(3)1972
Civil Service Employees Association501(c)(5)1947$0$02025-09
Civil Service Employees Association501(c)(5)1970$0$02025-09
Civil Service Employees Association501(c)(5)1970$0$02025-09
Elizabeth T McNamee Memorial Scholarship Fund IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)1999$806,3092025-09
Endometriosis Support of Long Island IncDiseases, disorders and medical disciplines501(c)(3)2014$0$02025-12
Fearlessly Living Autism IncDiseases, disorders and medical disciplines501(c)(3)2015$0$02025-12
Golden Eagle Flying Club LTD501(c)(7)1982$0$02026-08
Gospel Youth Theater CompanyArts, culture and humanities501(c)(3)2014$0$02026-08
Greenman Family CharitablefoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2007$1.2 million2024-12
Harold L Anderson Family Foundation IncEducation501(c)(3)2022$0$02025-12
Health On the GoDiseases, disorders and medical disciplines501(c)(3)2026
Helping Hands in West Islip IncHuman services501(c)(3)2005$0$02025-12
Islip Ares GroupCommunity improvement and capacity building501(c)(3)1995$0$02026-01
Joey Wood Foundation IncEducation501(c)(3)2022$0$02025-12
John Thomas Gaffney Memorial FundPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2014$0$02025-12
Long Island Adoptive Families AssociationHuman services501(c)(3)2020$0$02025-12
Long Island Dental Hygienists AssociationCommunity improvement and capacity building501(c)(6)2016$0$02026-06
Long Island Landmark Association IncorporatedPublic and societal benefit501(c)(3)2024
Long Island Language Teachers IncEducation501(c)(3)2004$0$02025-12
Long Island Wound Healing AssociationCommunity improvement and capacity building501(c)(3)2010$0$26,2122024-12
Luanne and Dan Chefetz CharitablefoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2007$6,0402025-12
Luca Gargiulo Pearson Foundation IncMedical research501(c)(3)2021$0$02025-09
Magoun Landing Civic Association Inc501(c)(4)1964$0$02024-12
Our Lady of Consolation Foundation501(c)(3)1946$0$3862024-12
Our Lady of Lourdes School501(c)(3)1946
Peter Pan RescueAnimal-related501(c)(3)2026
Planting Hope and Love Foundation IncHuman services501(c)(3)2020$1392025-12
Presbyterian Church USA501(c)(3)1964
Pta New York Congress501(c)(3)1954$0$02026-06
Pta New York Congress501(c)(3)1954$0$02025-06
Pta New York Congress501(c)(3)1954$0$02025-06
Pta New York Congress501(c)(3)1954$0$02026-06
Pta New York Congress501(c)(3)1954$0$02026-06
Pta New York Congress501(c)(3)1954$0$02025-06
Pta New York Congress501(c)(3)1966$0$02026-06
Pta New York Congress501(c)(3)1954$0$02026-06
Pta New York Congress501(c)(3)1954$0$02026-06
Remmington FoundationAnimal-related501(c)(3)2024
Safer Vaccines IncHealth care501(c)(3)2016$0$02023-12
Saint Vincent Mission Support IncReligion-related501(c)(3)2026
South Shore Boys Club IncYouth development501(c)(3)1970
Sts Peter and Paul Ukrainian Orthodox Church of West Islip N Y501(c)(3)1979
Suffolk Mikveh Corporation501(c)(3)1991
Sweet Adelines InternationalArts, culture and humanities501(c)(3)1965$0$02026-04
Tee Up Fore Gina Foundation IncHuman services501(c)(3)2026
The Fustal Foundation Inc501(c)(3)2019$0$02025-12
The Lucie Family Charitable Foundation Trust Agreement501(c)(3)2021$452,4562025-12
The Order of Saint Andrew Inc501(c)(3)1997
The Order of Saint Andrew Inc501(c)(3)1997
The Samaritan CorporationHealth care501(c)(3)1946$0$02025-12
Third Eye Insight - Fitness for the Blind IncHuman services501(c)(3)2010$0$02026-05
Towers of Freedom Military Monument IncArts, culture and humanities501(c)(3)2010$0$02024-12
True Harbour Civic Association IncCommunity improvement and capacity building501(c)(4)2003$0$02025-12
West Islip AssociationCommunity improvement and capacity building501(c)(3)2010$0$02025-12
West Islip Beautification Society IncEnvironment501(c)(3)1994$0$02025-12
West Islip Historical SocietyArts, culture and humanities501(c)(3)2018$0$02025-12
West Islip Lions Field Hockey Booster ClubEducation501(c)(3)2025$0$02025-12
West Islip Robotics Booster Club IncEducation501(c)(3)2006$0$02025-12
West Islip Summit Coalition IncEnvironment501(c)(3)2011$0$02026-06
West Islip Symphony Orchestra IncArts, culture and humanities501(c)(3)2022$0$02025-12
Wisb Booster Club IncRecreation and sports501(c)(3)2022$1,3562024-12
Women of West Islip IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2016$0$02025-12
Yemeni American Day Parade IncArts, culture and humanities501(c)(3)2024$0$02024-12

By cause in West Islip, 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.