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Private foundations Ontario, CAtax years 2024 to 2025

Private foundations in Ontario, CA

20 private foundations based in Ontario, CA filed a 990-PF in the last two years. In their latest returns they gave $2.9 million in 217 grants, and 5 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 2024 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. Mark H and Blanche M Harrington FoundationOntario, CA · tax year 2025 84 grants Accepts applications $1,242,000 giving
  2. DK Kim Foundation IncOntario, CA · tax year 2024 9 grants Preselected only $488,379 giving
  3. Khalid E Parekh Foundation IncOntario, CA · tax year 2024 33 grants Preselected only $329,198 giving
  4. The Joseph Bailey FoundationOntario, CA · tax year 2025 10 grants Preselected only $170,000 giving
  5. The HHMC FoundationOntario, CA · tax year 2025 4 grants Preselected only $146,501 giving
  6. HMC Designing Futures FoundationOntario, CA · tax year 2024 23 grants Preselected only $125,500 giving
  7. Millard Lester B CrutOntario, CA · tax year 2025 2 grants Preselected only $124,921 giving
  8. John Jack Pick TrustOntario, CA · tax year 2025 9 grants Preselected only $86,226 giving
  9. John P Previti Memorial FoundationOntario, CA · tax year 2024 10 grants Accepts applications $82,993 giving
  10. Fuerst Family FoundationOntario, CA · tax year 2024 6 grants Accepts applications $57,500 giving
  11. Wheeler Alice Colby TUWOntario, CA · tax year 2025 3 grants Preselected only $40,356 giving
  12. Raies Murr Educational TrustOntario, CA · tax year 2024 16 grants Preselected only $18,708 giving
  13. Andrew Winfield Richards FoundationOntario, CA · tax year 2024 7 grants Accepts applications $17,500 giving
  14. Christian Business MinistriesOntario, CA · tax year 2025 1 grant Accepts applications $1,677 giving

Foundations that accept applications

Largest first

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

  1. Mark H and Blanche M Harrington FoundationOntario, CA · tax year 2025 84 grants Accepts applications $1,242,000 giving
  2. John P Previti Memorial FoundationOntario, CA · tax year 2024 10 grants Accepts applications $82,993 giving
  3. Fuerst Family FoundationOntario, CA · tax year 2024 6 grants Accepts applications $57,500 giving
  4. Andrew Winfield Richards FoundationOntario, CA · tax year 2024 7 grants Accepts applications $17,500 giving
  5. Christian Business MinistriesOntario, CA · tax year 2025 1 grant Accepts applications $1,677 giving

Giving by cause

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

  1. Education5 foundations $362,69233% of the total
  2. Human services6 foundations $142,12313% of the total
  3. International aid2 foundations $102,5009% of the total
  4. Health4 foundations $88,2008% of the total
  5. Crime and legal aid1 foundation $75,0007% of the total
  6. Religion2 foundations $69,5016% of the total
  7. 12 other causes $264,11124% of the total

Most active small givers

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

  1. Khalid E Parekh Foundation IncOntario, CA · tax year 2024 33 grants Preselected only $329,198 giving
  2. Raies Murr Educational TrustOntario, CA · tax year 2024 16 grants Preselected only $18,708 giving
  3. John P Previti Memorial FoundationOntario, CA · tax year 2024 10 grants Accepts applications $82,993 giving
  4. Andrew Winfield Richards FoundationOntario, CA · tax year 2024 7 grants Accepts applications $17,500 giving
  5. Fuerst Family FoundationOntario, CA · tax year 2024 6 grants Accepts applications $57,500 giving
  6. The HHMC FoundationOntario, CA · tax year 2025 4 grants Preselected only $146,501 giving
  7. Wheeler Alice Colby TUWOntario, CA · tax year 2025 3 grants Preselected only $40,356 giving
  8. Christian Business MinistriesOntario, CA · tax year 2025 1 grant Accepts applications $1,677 giving