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Data / Nonprofits / New York / Smithtown / Human services

Human services nonprofits in Smithtown, NY: 15 registered with the IRS

15 human services nonprofits are registered with the IRS in Smithtown, NY, 15 of them 501(c)(3) charities; the 6 that report revenue took in $160.7 million. The largest by revenue: Developmental Disabilities Institute Inc ($159.8 million), Friends of the Retired and Senior Volunteer Program of Suffolk Count ($424,956), Angel Guardians for the Elderly Inc ($202,063).

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Every organization, largest by revenue first

OrganizationTypeSinceRevenueAssetsFiling
Developmental Disabilities Institute Inc501(c)(3)1967$159.8 million$102.2 million2024-12
Friends of the Retired and Senior Volunteer Program of Suffolk Count501(c)(3)1999$424,956$163,9632024-12
Angel Guardians for the Elderly Inc501(c)(3)1976$202,063$385,4162025-07
Curvy Girls Foundation Inc501(c)(3)2014$138,430$478,0642025-12
Hopeforcleo Inc501(c)(3)2022$110,368$97,1802025-12
Joseph P McKenna March Forth Foundation Inc501(c)(3)2021$13,572$5,7182025-12
Bringing Out the Smiles Inc501(c)(3)2023$0$02025-12
Circle of Life Wellness Foundation501(c)(3)2025
Elder Watch Foundation501(c)(3)2006$0$532025-12
Hope of Light Despite Darkness Inc501(c)(3)2022$0$12024-12
Long Island Chapter Honorable Order of Kentucky Colonels Inc501(c)(3)2024$0$02025-12
Long Island Reef Association - Lira Inc501(c)(3)2016$0$02025-12
Second Chance Sanctuary Inc501(c)(3)2022$0$02025-12
Smithtown High School East Touchdown Club501(c)(3)2025
Therapy Dogs of Long Island501(c)(3)2017$0$02025-12

Other causes in Smithtown, NY

Every nonprofit in Smithtown, 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.