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Data / Nonprofits / New York / Nassau

Nonprofits in Nassau, NY: 29 registered with the IRS

29 nonprofits are registered with the IRS in Nassau, NY, 20 of them 501(c)(3) charities; the 6 that report revenue took in $1.3 million. The largest by revenue: Nassau Ambulance ($651,625), Nassau Free Library ($220,084), New York State Camp Directors Association ($167,300). Most common causes: religion-related (4), education (3), recreation and sports (3).

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Every organization, largest by revenue first

OrganizationCategoryTypeSinceRevenueAssetsFiling
Nassau AmbulanceHealth care501(c)(3)2022$651,625$1 million2025-12
Nassau Free Library501(c)(3)1973$220,084$326,1642025-12
New York State Camp Directors Association501(c)(6)1974$167,300$293,7522025-12
Chandler-Young Veterans AssociationPublic and societal benefit501(c)(19)2015$90,815$105,7132024-12
Crane Soccer ClubRecreation and sports501(c)(3)2007$72,449$41,8922025-12
Castleton Cemetery Association501(c)(13)1941$64,245$1 million2025-12
American Brittany Club Inc501(c)(7)1974$0$02023-12
American Legion Auxiliary501(c)(19)1946$0$02025-09
Amvets501(c)(19)1945$0$02025-08
Catherine and Carl Mueller FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2021$777,8152025-12
Chandler-Young Post No 8162 Veterans of Foreign Wars of thePublic and societal benefit501(c)(19)2014$0$02025-12
DPS Pto IncEducation501(c)(3)2022$0$02026-06
Disciples of the Good Shepherd IncReligion-related501(c)(3)2026
East Side QuiltersEducation501(c)(3)2025$0$02025-12
Fire Service Women of New York State IncEducation501(c)(3)2004$0$02025-12
Ichabod Crane Community Assistance FundHuman services501(c)(3)2018$0$02025-12
Islamic Sufi Order of Qadiri Rifai Tariqa of the AmericasReligion-related501(c)(3)1996
Nassau Hose Company 1Public safety, disaster preparedness and relief501(c)(3)2025$0$02025-12
Nassau Park Lake Improvement AssociationRecreation and sports501(c)(7)2015$0$02025-12
Nassau Reformed Church501(c)(3)1986
Nassau Schodack Cemetery AssocMutual and membership benefit501(c)(13)2020$0$02025-12
Nassau Sunshine FundHuman services501(c)(3)2010$0$02025-06
Nassau Synagogue & Jewish Community CenterReligion-related501(c)(3)2007
New Hope for Life MinistriesReligion-related501(c)(3)1997
No-Charge CardsYouth development501(c)(3)2003$31,1682025-12
Northeast Center for Spiritual Growth IncHuman services501(c)(3)2018$0$02025-12
Pop Warner Little Scholars Inc501(c)(3)1990$0$02024-12
Protect Raquette Lake IncEnvironment501(c)(3)2024$0$02025-12
The United States Pony Clubs IncRecreation and sports501(c)(3)2002$0$02025-12

By cause in Nassau, 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.