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Data / Nonprofits / New York / Calverton

Nonprofits in Calverton, NY: 22 registered with the IRS

22 nonprofits are registered with the IRS in Calverton, NY, 18 of them 501(c)(3) charities; the 7 that report revenue took in $24.7 million. The largest by revenue: Riverhead Charter School ($21.8 million), Ada Howe Kent Memorial Shelter Inc ($2.3 million), New York Farm Bureau ($211,986). Most common causes: animal-related (4).

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Every organization, largest by revenue first

OrganizationCategoryTypeSinceRevenueAssetsFiling
Riverhead Charter SchoolEducation501(c)(3)2002$21.8 million$42.4 million2025-06
Ada Howe Kent Memorial Shelter IncAnimal-related501(c)(3)1969$2.3 million$8.3 million2024-12
New York Farm Bureau501(c)(5)1966$211,986$620,4032024-09
Detective Brian Smiles Simonsen Memorial Foundation IncEducation501(c)(3)2019$191,542$414,0742025-12
League of Yes IncRecreation and sports501(c)(3)2010$175,088$157,6652025-12
Parents Association of Riley Avenue IncPublic and societal benefit501(c)(3)2014$15,545$41,5032025-06
Long Island Farm Bureau Foundation for Agricultural Education IncFood, agriculture and nutrition501(c)(3)2015$1,500$52,6722024-12
Bethel Christian Assembly501(c)(3)1987
Braveheart Animal Sanctuary IncAnimal-related501(c)(3)2022$0$02025-12
Dayspring Dunamis Ministries IncReligion-related501(c)(3)2014$0$02025-12
East End Feral Care Givers IncAnimal-related501(c)(3)2025$0$02026-05
Effective Altruism Rationality To HelpEnvironment501(c)(3)2017$0$02025-12
Grace & Truth Church IncReligion-related501(c)(3)1997
Jesus To America Inc501(c)(3)1979$0$02025-12
Long Island Traditional Music AssociationArts, culture and humanities501(c)(3)1981$0$02025-09
Moca Colombia IncHuman services501(c)(3)2025$0$02025-12
New York State Concrete Pipe Association Inc501(c)(6)1962$0$02025-12
Peconic Lake Estates Civic Organization IncRecreation and sports501(c)(7)2006$0$02025-12
Riverhead Building Supply Charitable Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2016$1.2 million2025-12
Roses Care and Share of RiverheadHuman services501(c)(3)2006$0$02025-12
Wellswood Civic Association IncCommunity improvement and capacity building501(c)(4)2018$0$02025-12
Wonderland Tails Rescue IncAnimal-related501(c)(3)2020$0$02025-12

By cause in Calverton, 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.