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Data / Nonprofits / New York / Locust Valley

Nonprofits in Locust Valley, NY: 64 registered with the IRS

64 nonprofits are registered with the IRS in Locust Valley, NY, 55 of them 501(c)(3) charities; the 32 that report revenue took in $124.3 million. The largest by revenue: Friends Academy ($35.1 million), Portledge School ($27.7 million), Piping Rock Club ($20.1 million). Most common causes: philanthropy, voluntarism and grantmaking foundations (11), education (7), youth development (3).

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Every organization, largest by revenue first

OrganizationCategoryTypeSinceRevenueAssetsFiling
Friends AcademyEducation501(c)(3)1934$35.1 million$125.1 million2025-06
Portledge School501(c)(3)1951$27.7 million$42.4 million2025-06
Piping Rock Club501(c)(7)1981$20.1 million$29 million2024-12
Creek Inc501(c)(7)1942$20 million$7.4 million2025-03
Locust Valley Cemetery Association Inc501(c)(13)1942$5.8 million$28.6 million2025-03
Grenville Baker Boys and Girls Club IncYouth development501(c)(3)1986$5.8 million$28.1 million2025-12
Beaver Dam Winter Sports Club Inc Long Island501(c)(7)1963$3.1 million$8.2 million2025-04
Locust Valley LibraryEducation501(c)(3)1965$1.9 million$4.6 million2025-06
Felix Organization - Adoptees for Children IncRecreation and sports501(c)(3)2006$996,960$527,5612024-12
Middle East Childrens Institute IncInternational, foreign affairs and national security501(c)(3)2005$715,685$1.2 million2024-12
Rewilding America Now IncAnimal-related501(c)(3)2010$694,167$1,9582024-12
Support for People With Oral and Head and Neck Cancer IncHealth care501(c)(3)1993$518,953$2.5 million2024-12
Friends of Nassau County Bailey ArboretumEnvironment501(c)(3)1976$444,476$2.8 million2025-12
Piping Rock Scholarship Fund IncEducation501(c)(3)2023$264,391$1.2 million2024-12
Locust Valley Bayville Soccer ClubYouth development501(c)(3)2013$201,226$50,3172023-12
One Horse Hollow Scholarship and Relief Fund IncEducation501(c)(3)2020$152,144$291,8702025-12
American Federation of Teachers501(c)(5)1967$135,787$434,8622025-04
North Country Garden Club of L I IncEnvironment501(c)(3)1960$117,734$380,1542025-06
Glen Cove Neighborhood Association Inc501(c)(3)1947$104,218$360,7512025-06
Locust Valley Elementary Parents Council IncEducation501(c)(3)2008$100,428$110,9202024-12
Locust Valley Middle School Parents Council IncYouth development501(c)(3)2009$96,182$70,5432024-12
Cycling for Change IncHuman services501(c)(3)2014$75,266$84,5332025-12
Fordham College Alumni AssociationCommunity improvement and capacity building501(c)(3)2015$68,184$150,6002025-12
Amercian Legion501(c)(19)1946$64,932$208,2972024-12
Little League Baseball Inc501(c)(3)1967$59,207$61,7922025-09
Zamela IncRecreation and sports501(c)(3)2015$55,840$211,7402025-12
Operation Democracy Inc501(c)(3)1949$43,539$13,4662025-12
Locust Valley Chamber of Commerce Inc501(c)(6)1993$25,238$6,9862025-12
Kingdom Allies IncReligion-related501(c)(3)2016$19,177$17,0722024-12
Matinecock Neighborhood Association501(c)(3)1955$15,687$25,2802026-01
Rotary International501(c)(4)1966$3,282$8,2532025-06
Locust Valley Historical Society501(c)(3)1985$25$6,0992025-12
Alexander M Lewyt and Elisabeth Lewyt Wholly Charitable TrustPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2015$89.8 million2024-12
American Swiss Cancer Foundation IncMedical research501(c)(3)2016$0$02025-12
Angels for Austin IncDiseases, disorders and medical disciplines501(c)(3)2011$0$02025-12
Committee To End Antisemitism and Promote PeaceEducation501(c)(3)2023$0$02025-12
Fame GC IncArts, culture and humanities501(c)(3)2022$0$02025-12
Farooq Family Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2022$510,0692024-12
Frank and Janet Dellafera Family Foundation TrustPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2013$2.9 million2025-12
Fraternite Blanche Universelle IncReligion-related501(c)(3)2010$0$02025-12
Friends of the Locust Valley Library501(c)(3)1992$0$02025-08
Gerald P & Carol D Halpern Foundation TrustPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2003$273,8452025-06
Gifted Learning InstituteEducation501(c)(3)1999$2,0062025-12
Harry F Mariani Family FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2020$5.8 million2025-12
HeroboxesHuman services501(c)(3)2026$0$02025-12
James M Large Jr Family FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)1997$3,4792025-12
Janet Darling Webel Memorial Fund501(c)(3)1966$12025-10
John and Joan Daddario Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)1998$1.9 million2025-05
Karches FoundationEmployment501(c)(3)1997$495,5322025-12
Lazar Memorial Scholarship Fund Inc501(c)(3)2017$0$02025-12
Michael and Ruth Slade FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)1999$216,6222024-12
No Surrender Breast Cancer Foundation IncDiseases, disorders and medical disciplines501(c)(3)2009$0$02025-12
Order of St Basil the Great Inc501(c)(3)1946
Patrina Foundation501(c)(3)1991$7.9 million2025-12
Pierre and Paula Gonthier Family FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2015$2.4 million2025-12
Piping Rock Holding Corp501(c)(2)1940$0$02025-12
Pta New York Congress501(c)(3)1954$0$02026-06
Reformed Church of Locust Valley501(c)(3)1968
Robert V Rasmussen Foundation501(c)(3)1960$387,7002025-12
Sharma Family Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2023$382,7222024-12
St Johns of Lattingtown Church501(c)(3)1972
Steven B Sands Foundation IncHuman services501(c)(3)2018$605,0222024-12
Textor Family Foundation501(c)(3)1992$10.2 million2025-05
Zhu & Liu Family Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2023$181,7812025-12

By cause in Locust Valley, 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.