Skip to the page

Data / Nonprofits / New York / Riverhead / Arts, culture and humanities

Arts, culture and humanities nonprofits in Riverhead, NY: 12 registered with the IRS

12 arts, culture and humanities nonprofits are registered with the IRS in Riverhead, NY, 12 of them 501(c)(3) charities; the 5 that report revenue took in $1.2 million. The largest by revenue: Suffolk County Historical Society ($490,063), Hallockville Inc ($454,068), North Fork Breast Health Coalition Inc ($204,572).

SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.

Every organization, largest by revenue first

OrganizationTypeSinceRevenueAssetsFiling
Suffolk County Historical Society501(c)(3)1941$490,063$2.2 million2024-12
Hallockville Inc501(c)(3)1982$454,068$1.5 million2024-12
North Fork Breast Health Coalition Inc501(c)(3)1998$204,572$359,1612024-12
Our Future Generation501(c)(3)2014$20,530$19,4502025-12
Indian Network of Eastern Long Island Inc501(c)(3)2008$1,500$4,7872025-12
Aram Square Club Inc501(c)(3)2018$0$02025-12
Flanders Village Historical Society501(c)(3)2024$0$02025-12
Peconic Ballet Foundation Inc501(c)(3)2014$0$02025-12
St Maksymilian M Kolbe Polish School Inc501(c)(3)2020$0$02025-08
Suffolk Performing Arts Alliance Inc501(c)(3)2015$0$02025-12
The African-American Educational and Cultural Festival Inc501(c)(3)2018$0$02025-12
The Friends of the Big Duck Inc501(c)(3)2009$0$02025-12

Other causes in Riverhead, NY

Every nonprofit in Riverhead, NY · Arts, culture and humanities 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.