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Nonprofits in SMITHTOWN, NY

148 tax-exempt organizations with a return on IRS file.

Largest nonprofits in SMITHTOWN by revenue

Top 5s in SMITHTOWN

Most raised in gifts and grants

Contributions, gifts and grants received in the year

  1. 1Guide Dog Foundation for the Blind Inc990, year ended Jun 2025$12.9M
  2. 2Americas Vetdogs the Veterans K9 Corps Inc990, year ended Jun 2025$10M
  3. 3Hildenbrand Family Foundation990-PF, year ended Dec 2025$5M
  4. 4Developmental Disabilities Institute Inc990, year ended Dec 2024$2.4M
  5. 5ST Catherine of Siena Medical Center990, year ended Dec 2024$1.3M

Largest reserves

Net assets (fund balance) at year end

  1. 1Guide Dog Foundation for the Blind Inc990, year ended Jun 2025$69.9M
  2. 2Developmental Disabilities Institute Inc990, year ended Dec 2024$47.9M
  3. 3Scope Education Services990, year ended Aug 2025$21.1M
  4. 4Banyan Tree Roots Foundation990-PF, year ended Dec 2025$10.7M
  5. 5Hildenbrand Family Foundation990-PF, year ended Dec 2025$10.3M

Highest-paid people

Compensation from the organization and related organizations, including other pay

  1. 1Sushil BasraPhysician · ST Catherine of Siena Medical Center$1.4M
  2. 2Laurence MermelsteinPhysician · ST Catherine of Siena Medical Center$1.4M
  3. 3Ravi Ainapudi MDPhysician · ST Catherine of Siena Medical Center$1.2M
  4. 4Kanika Kaur MDPhysician · ST Catherine of Siena Medical Center$1.1M
  5. 5Bruce MayersonNeurologist · ST Catherine of Siena Medical Center$1M

All nonprofits in SMITHTOWN, A–Z (page 1 of 2)