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Data / Nonprofits / New York / Southampton / Community improvement and capacity building

Community improvement and capacity building nonprofits in Southampton, NY: 9 registered with the IRS

9 community improvement and capacity building nonprofits are registered with the IRS in Southampton, NY, 7 of them 501(c)(3) charities; the 6 that report revenue took in $1.2 million. The largest by revenue: Blossom Sustainable Development ($529,672), Hamptons Real Estate Association Inc ($237,861), Southampton Association Inc ($229,218).

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Every organization, largest by revenue first

OrganizationTypeSinceRevenueAssetsFiling
Blossom Sustainable Development501(c)(3)2016$529,672$41,7682025-09
Hamptons Real Estate Association Inc501(c)(6)2022$237,861$51,6092024-12
Southampton Association Inc501(c)(3)1964$229,218$663,2562024-12
Christmas Decorations Committee Inc501(c)(3)2018$88,418$88,6282025-12
North Sea Community Schoolhouse Association Inc501(c)(3)2018$75,237$62,6432025-12
Kiwanis Club of Southampton Town Foundation Inc501(c)(3)2012$62,615$255,9982025-09
Concerned Citizens of the Village of Southampton Inc501(c)(4)2024$0$60,2422025-12
Southampton Public Safety Foundation Inc501(c)(3)2025
Southampton Village Partnership Inc501(c)(3)2026

Other causes in Southampton, NY

Every nonprofit in Southampton, NY · Community improvement and capacity building 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.