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Private foundations Costa Mesa, CAtax years 2024 to 2025

Private foundations in Costa Mesa, CA

44 private foundations based in Costa Mesa, CA filed a 990-PF in the last two years. In their latest returns they gave $47.2 million in 751 grants, and 8 say they accept applications.

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. Argyros Family FoundationCosta Mesa, CA · tax year 2024 132 grants Accepts applications $33,774,256 giving
  2. O L Halsell FoundationCosta Mesa, CA · tax year 2025 93 grants Accepts applications $2,552,000 giving
  3. Abraham Family FoundationCosta Mesa, CA · tax year 2024 19 grants Preselected only $1,298,294 giving
  4. The Henry T and Elizabeth Segerstrom Charitable FoundationCosta Mesa, CA · tax year 2024 9 grants Preselected only $1,230,000 giving
  5. Hal and Jeanette Segerstrom Family FoundationCosta Mesa, CA · tax year 2025 1 grant Preselected only $1,000,000 giving
  6. Lewis A Kingsley FoundationCosta Mesa, CA · tax year 2024 72 grants Preselected only $978,400 giving
  7. Eric & Martha Schweiger FoundationCosta Mesa, CA · tax year 2024 2 grants Preselected only $878,858 giving
  8. Frome Family FoundationCosta Mesa, CA · tax year 2024 66 grants Preselected only $829,521 giving
  9. Lingnan FoundationCosta Mesa, CA · tax year 2024 5 grants Accepts applications $760,575 giving
  10. The Segerstrom FoundationCosta Mesa, CA · tax year 2025 15 grants Accepts applications $672,500 giving
  11. Maximum Impact Foundation IncCosta Mesa, CA · tax year 2024 6 grants Accepts applications $482,803 giving
  12. Waterman FoundationCosta Mesa, CA · tax year 2025 1 grant Preselected only $354,851 giving
  13. Fainbarg Family FoundationCosta Mesa, CA · tax year 2024 8 grants Preselected only $327,300 giving
  14. Jabara Family FoundationCosta Mesa, CA · tax year 2024 5 grants Preselected only $290,000 giving
  15. Linda I Smith FoundationCosta Mesa, CA · tax year 2025 32 grants Preselected only $238,400 giving
  16. Z Supply FoundationCosta Mesa, CA · tax year 2025 11 grants Preselected only $225,259 giving
  17. Hearty FoundationCosta Mesa, CA · tax year 2025 11 grants Preselected only $205,187 giving
  18. Fudge Family FoundationCosta Mesa, CA · tax year 2025 9 grants Accepts applications $172,822 giving
  19. WK Russell Family FoundationCosta Mesa, CA · tax year 2024 6 grants Preselected only $155,000 giving
  20. Uhl & KK FoundationCosta Mesa, CA · tax year 2024 27 grants Preselected only $121,517 giving
  21. Alphonse A Burnand Medical and Educational FoundationCosta Mesa, CA · tax year 2025 6 grants Accepts applications $113,000 giving
  22. Costa Mesa High School FoundationCosta Mesa, CA · tax year 2024 1 grant Preselected only $103,026 giving
  23. Estancia & Tewinkle Schools FoundationCosta Mesa, CA · tax year 2024 2 grants Preselected only $85,344 giving
  24. The Ducommun FoundationCosta Mesa, CA · tax year 2024 5 grants Preselected only $77,715 giving
  25. Aisha Syma Aslam FoundationCosta Mesa, CA · tax year 2025 7 grants Preselected only $50,400 giving

Foundations that accept applications

Largest first

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

  1. Argyros Family FoundationCosta Mesa, CA · tax year 2024 132 grants Accepts applications $33,774,256 giving
  2. O L Halsell FoundationCosta Mesa, CA · tax year 2025 93 grants Accepts applications $2,552,000 giving
  3. Lingnan FoundationCosta Mesa, CA · tax year 2024 5 grants Accepts applications $760,575 giving
  4. The Segerstrom FoundationCosta Mesa, CA · tax year 2025 15 grants Accepts applications $672,500 giving
  5. Maximum Impact Foundation IncCosta Mesa, CA · tax year 2024 6 grants Accepts applications $482,803 giving
  6. Fudge Family FoundationCosta Mesa, CA · tax year 2025 9 grants Accepts applications $172,822 giving
  7. Alphonse A Burnand Medical and Educational FoundationCosta Mesa, CA · tax year 2025 6 grants Accepts applications $113,000 giving
  8. Insights Foundation IncCosta Mesa, CA · tax year 2024 0 grants Accepts applications $0 giving

Giving by cause

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

  1. Education14 foundations $7,077,79531% of the total
  2. Health8 foundations $4,343,92919% of the total
  3. Arts and culture11 foundations $4,230,18618% of the total
  4. Philanthropy and grantmaking10 foundations $3,440,94315% of the total
  5. Human services14 foundations $1,397,1346% of the total
  6. Disaster relief and public safety1 foundation $1,050,0005% of the total
  7. 16 other causes $1,450,1876% of the total

Most active small givers

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

  1. Martin and Ann Goldstein Family FoundationCosta Mesa, CA · tax year 2025 169 grants Preselected only $47,617 giving
  2. Abraham Family FoundationCosta Mesa, CA · tax year 2024 19 grants Preselected only $1,298,294 giving
  3. John and Miki Ford FoundationCosta Mesa, CA · tax year 2024 12 grants Preselected only $48,520 giving
  4. Z Supply FoundationCosta Mesa, CA · tax year 2025 11 grants Preselected only $225,259 giving
  5. Hearty FoundationCosta Mesa, CA · tax year 2025 11 grants Preselected only $205,187 giving
  6. Byers Family FoundationCosta Mesa, CA · tax year 2024 7 grants Preselected only $30,950 giving
  7. Maximum Impact Foundation IncCosta Mesa, CA · tax year 2024 6 grants Accepts applications $482,803 giving
  8. The Ducommun FoundationCosta Mesa, CA · tax year 2024 5 grants Preselected only $77,715 giving
  9. The Woods Family Private FoundationCosta Mesa, CA · tax year 2025 2 grants Preselected only $40,005 giving
  10. Mesa Verde Country Club FoundationCosta Mesa, CA · tax year 2025 1 grant Preselected only $6,000 giving
  11. Eric Wyser Foundation IncCosta Mesa, CA · tax year 2024 1 grant Preselected only $4,500 giving