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Data / Nonprofits / New York / Syosset / Human services

Human services nonprofits in Syosset, NY: 12 registered with the IRS

12 human services nonprofits are registered with the IRS in Syosset, NY, 12 of them 501(c)(3) charities; the 4 that report revenue took in $65.1 million. The largest by revenue: Mercyfirst ($61.8 million), Christian Fellowship House ($3.2 million), Long Island Curling Club ($102,780).

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Every organization, largest by revenue first

OrganizationTypeSinceRevenueAssetsFiling
Mercyfirst501(c)(3)1946$61.8 million$26 million2025-06
Christian Fellowship House501(c)(3)1969$3.2 million$2 million2024-12
Long Island Curling Club501(c)(3)2014$102,780$218,4602024-12
Sabrina Navaretta Memorial Foundation Inc501(c)(3)2023$42,702$131,3352024-12
Central Council of the Society of St Vincent de Paul in the Diocese501(c)(3)2009$0$02025-09
Enrichment Center of Long Island Inc501(c)(3)2025
JNS Childcare Center501(c)(3)2026
Michael Rampanelli Memorial Foundation Inc501(c)(3)2025$0$02025-12
Sieb Denim & Diamonds Foundation501(c)(3)2020$0$02025-12
Smile in A Bag Inc501(c)(3)2003$7,1932024-12
Sponsor A Funeral Inc501(c)(3)2026
Unity Heart Foundation501(c)(3)2024$12024-12

Other causes in Syosset, NY

Every nonprofit in Syosset, NY · Human services nonprofits across the state · 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.