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Private foundations Southampton, NYtax years 2023 to 2025

Private foundations in Southampton, NY

28 private foundations based in Southampton, NY filed a 990-PF in the last two years. In their latest returns they gave $20.3 million in 539 grants, and 4 say they accept applications.

See which foundations fund work like yours Matching by cause, place and grant size

Foundations with a return in the last two years, each by its latest return (tax years 2023 to 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

Largest givers

By grants paid, latest return
  1. Thomas L Kempner Jr FoundationSouthampton, NY · tax year 2024 22 grants Preselected only $11,575,752 giving
  2. Walentas Foundation LTDSouthampton, NY · tax year 2024 119 grants Accepts applications $2,526,292 giving
  3. Muriel F Siebert Foundation IncSouthampton, NY · tax year 2025 126 grants Preselected only $2,251,900 giving
  4. Yaffa Foundation IncSouthampton, NY · tax year 2024 52 grants Preselected only $1,658,500 giving
  5. The Bandier Family Foundation IncSouthampton, NY · tax year 2023 30 grants Preselected only $560,698 giving
  6. Jaf FoundationSouthampton, NY · tax year 2024 20 grants Preselected only $359,500 giving
  7. Charles D Farber Memorial Foundation IncSouthampton, NY · tax year 2024 27 grants Accepts applications $247,940 giving
  8. The Swint FoundationSouthampton, NY · tax year 2024 5 grants Preselected only $158,640 giving
  9. The Kaneff Foundation IncSouthampton, NY · tax year 2025 15 grants Preselected only $138,216 giving
  10. Felberbaum Family FoundationSouthampton, NY · tax year 2024 16 grants Preselected only $126,540 giving
  11. The Malkenson FoundationSouthampton, NY · tax year 2024 16 grants Preselected only $118,950 giving
  12. Ann & John E Grimm III Foundation IncSouthampton, NY · tax year 2024 1 grant Preselected only $98,944 giving
  13. Irene Geller Scholarship FundSouthampton, NY · tax year 2025 1 grant Preselected only $96,700 giving
  14. Gregg's WingsSouthampton, NY · tax year 2024 1 grant Preselected only $55,000 giving
  15. Adler Hirsch FoundationSouthampton, NY · tax year 2025 21 grants Preselected only $53,000 giving
  16. William Mead Regan FoundationSouthampton, NY · tax year 2025 10 grants Preselected only $49,500 giving
  17. Mr & Mrs Everett E Brockett Scholarship Fund IncSouthampton, NY · tax year 2025 1 grant Preselected only $45,000 giving
  18. Kleinow Family Foundation IncSouthampton, NY · tax year 2025 1 grant Preselected only $37,149 giving
  19. Albert A Arditti Foundation IncSouthampton, NY · tax year 2025 16 grants Preselected only $30,000 giving
  20. Halsey Family Foundation IncSouthampton, NY · tax year 2025 20 grants Accepts applications $26,400 giving
  21. Norsic Family Foundation IncSouthampton, NY · tax year 2025 2 grants Accepts applications $20,100 giving
  22. Santa Maria Club IncSouthampton, NY · tax year 2025 5 grants Preselected only $16,500 giving
  23. The Tighe Hidalgo FoundationSouthampton, NY · tax year 2024 6 grants Preselected only $15,000 giving
  24. Elias Foundation IncSouthampton, NY · tax year 2024 4 grants Preselected only $14,342 giving
  25. Charles P Stevenson Terranova FoundationSouthampton, NY · tax year 2025 2 grants Preselected only $11,000 giving

Foundations that accept applications

Largest first

The return gives an application contact and does not check the preselected-only box.

  1. Walentas Foundation LTDSouthampton, NY · tax year 2024 119 grants Accepts applications $2,526,292 giving
  2. Charles D Farber Memorial Foundation IncSouthampton, NY · tax year 2024 27 grants Accepts applications $247,940 giving
  3. Halsey Family Foundation IncSouthampton, NY · tax year 2025 20 grants Accepts applications $26,400 giving
  4. Norsic Family Foundation IncSouthampton, NY · tax year 2025 2 grants Accepts applications $20,100 giving

Giving by cause

Grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Philanthropy and grantmaking7 foundations $3,461,05925% of the total
  2. Health8 foundations $3,376,50024% of the total
  3. Education9 foundations $2,287,39816% of the total
  4. Animals9 foundations $1,102,6408% of the total
  5. Environment8 foundations $1,098,1608% of the total
  6. Arts and culture8 foundations $639,3605% of the total
  7. 15 other causes $1,955,53314% of the total

Most active small givers

Foundations with under $1 million in assets, by the number of grants they listed.

  1. Walentas Foundation LTDSouthampton, NY · tax year 2024 119 grants Accepts applications $2,526,292 giving
  2. Yaffa Foundation IncSouthampton, NY · tax year 2024 52 grants Preselected only $1,658,500 giving
  3. The Bandier Family Foundation IncSouthampton, NY · tax year 2023 30 grants Preselected only $560,698 giving
  4. Charles D Farber Memorial Foundation IncSouthampton, NY · tax year 2024 27 grants Accepts applications $247,940 giving
  5. Adler Hirsch FoundationSouthampton, NY · tax year 2025 21 grants Preselected only $53,000 giving
  6. Halsey Family Foundation IncSouthampton, NY · tax year 2025 20 grants Accepts applications $26,400 giving
  7. Felberbaum Family FoundationSouthampton, NY · tax year 2024 16 grants Preselected only $126,540 giving
  8. The Malkenson FoundationSouthampton, NY · tax year 2024 16 grants Preselected only $118,950 giving
  9. Albert A Arditti Foundation IncSouthampton, NY · tax year 2025 16 grants Preselected only $30,000 giving
  10. The Kaneff Foundation IncSouthampton, NY · tax year 2025 15 grants Preselected only $138,216 giving
  11. William Mead Regan FoundationSouthampton, NY · tax year 2025 10 grants Preselected only $49,500 giving
  12. The Tighe Hidalgo FoundationSouthampton, NY · tax year 2024 6 grants Preselected only $15,000 giving
  13. The Swint FoundationSouthampton, NY · tax year 2024 5 grants Preselected only $158,640 giving
  14. Santa Maria Club IncSouthampton, NY · tax year 2025 5 grants Preselected only $16,500 giving
  15. Elias Foundation IncSouthampton, NY · tax year 2024 4 grants Preselected only $14,342 giving