Foundations · IRS 990 filings

Foundations in San Marino, California

40
foundations with a San Marino address
$21.9M
grants paid, FY2023–FY2025
7
say they accept unsolicited
$5,000
median grant

Grantlas lists 40 foundations that gave a San Marino, California address on their tax filing — 38 private foundations and 2 grantmaking charities such as community foundations and United Ways — from filings for FY2023–FY2025. Together they paid out $21.9 million in grants in their latest filing year, and 7 of them (18%) say they accept unsolicited requests.

Not every foundation here is a San Marino foundation. The city is the mailing address on the foundation’s tax filing, and when a bank or a law firm runs the trust that is the bank’s address, not the place it gives to. Check where a foundation gives before you write.

Top 25 of 40 foundations

Ranked by what they paid in grants in their latest filing, with the ones that accept unsolicited requests first, then the ones whose filing doesn’t say.

Foundations in San Marino, California
Universal Sunlight FoundationAccepts$15,000$1.1M$5,000–$1MFY2024Locked: fit score and contacts
Barbera FoundationAccepts$25,000$119,450$2,000–$55,000FY2025Locked: fit score and contacts
Jeanne Ward FoundationAccepts$5,000$98,000$1,000–$45,000FY2024Locked: fit score and contacts
The Duncan Great Cause FoundationAccepts$1,400$77,548$103–$52,000FY2025Locked: fit score and contacts
David and Elita Balfour FoundationAccepts$250$15,975$50–$2,725FY2025Locked: fit score and contacts
Lmgx Bright Mind FoundationAccepts$1,000$2,200$200–$1,000FY2025Locked: fit score and contacts
Dj and T FoundationAccepts$605$1,209$110–$1,099FY2023Locked: fit score and contacts
San Marino Motor ClassicPublic foundationNot stated—Over $5k only$315,000—FY2024Locked: fit score and contacts
San Marino Rotary CharitiesPublic foundationNot stated—Over $5k only$188,483—FY2024Locked: fit score and contacts
Whh FoundationInvitation only$15,000$7.9M$2,000–$2.3MFY2024Locked: fit score and contacts
The Thornton Foundation DelawareInvitation only$3.9M$4M$3.7M–$4MFY2025Locked: fit score and contacts
Silent Partner GrantsInvitation only$10,000$2.5M$19–$565,000FY2024Locked: fit score and contacts
Jayasinhala FoundationInvitation only$694,196$1.8M$80,522–$1MFY2024Locked: fit score and contacts
Greenwood FoundationInvitation only$65,000$600,000$9,676–$750,000FY2024Locked: fit score and contacts
Christen C and Ben H GarrettInvitation only$5,000$519,558$2,000–$232,658FY2025Locked: fit score and contacts
Allan & Lalita Charitable FoundationInvitation only$6,153$455,827$100–$40,000FY2024Locked: fit score and contacts
Lam Yau Jong Charitable FoundationInvitation only$15,000$402,000$10,000–$100,000FY2025Locked: fit score and contacts
The Boardman Family FoundationInvitation only$6,879$231,339$1,000–$84,138FY2024Locked: fit score and contacts
Thomas N Felgner Charitable FoundationInvitation only$5,000$208,000$1,000–$175,000FY2025Locked: fit score and contacts
Kings Bridge FoundationInvitation only$157,500$160,000$155,000–$160,000FY2025Locked: fit score and contacts
Vicki & Lewis Solmon Family FoundationInvitation only$112,500$150,000$75,000–$150,000FY2025Locked: fit score and contacts
Chapman Family FoundationInvitation only$8,750$142,351$1–$50,000FY2024Locked: fit score and contacts
The Negri FoundationInvitation only$8,000$138,042$125–$13,667FY2024Locked: fit score and contacts
The Warrensodenhopkins FamilyInvitation only$10,000$105,000$5,000–$25,000FY2025Locked: fit score and contacts
George & Mary Ann Leal FoundationInvitation only$1,500$92,000$500–$25,000FY2025Locked: fit score and contacts
  • Median grant and grant range come from each funder’s grant schedule; a dash means there is none to report. Community foundations and other charities list only grants over $5,000, so their figures run high.
  • “One grant” means a schedule with a single grant — no median, nothing to range over. “One amount” means several grants, all the same size.

15 more foundations — see all in Grantlas

Data from 990-PF and Form 990 filings, FY2023–FY2025. Updated November 8, 2026.