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Data / Foundation grants / The Middleton Foundation

The Middleton Foundation: 28 grants to organizations, $783,500 (tax year ended December 2024)

The Middleton Foundation, a private foundation in San Mateo, CA, paid 28 grants to organizations totaling $783,500 in its tax year ended December 2024, according to its Form 990-PF filed with the IRS on November 17, 2025. The largest was $500,000 to Silicon Valley Community Foundation Silicon Valley Community Foundation in Mountain View, CA for charity.

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EIN
943117882
Based in
San Mateo, CA
Assets
$18,579,728
Grants paid
$783,500
Tax year ended
December 2024

Grants paid, tax year ended December 2024

From the Form 990-PF filed November 17, 2025, IRS object ID 202513219349103796. It reported $783,500 in grants paid; 28 grants to organizations are listed.

RecipientLocationPurposeCauseAmountSource
Silicon Valley Community Foundation Silicon Valley Community FoundationMountain View, CACharity$500,000apps.irs.gov
Mit (eaps) Mit (eaps)Cambridge, MACharity$100,000apps.irs.gov
United States Olympic Committee United States Olympic CommitteeAlberta Lea, MNCharity$75,000apps.irs.gov
Opportunity International Opportunity InternationalCarol Stream, ILCharity$50,000apps.irs.gov
Kyoto Prize Symposium Kyoto Prize SymposiumSan Diego, CACharity$10,000apps.irs.gov
Science History Institute Science History InstitutePhiladelphia, PACharity$10,000apps.irs.gov
Ananda Church Ananda ChurchPalo Alto, CACharity$5,000apps.irs.gov
Harward University Gift Hawards University GiftCambridge, MACharity$5,000apps.irs.gov
Viewpoint School Viewpoint SchoolCalabasas, CACharity$5,000apps.irs.gov
James Beard Foundation James Beard FoundationNew York, NYCharity$4,000apps.irs.gov
Rancho Sante Fe Rotary Rancho Sante Fe RotarySolana Beach, CACharity$3,700apps.irs.gov
Coalition To Salute Amer Coalition To Salute AmerWilton, CTCharity$2,000apps.irs.gov
The Leakey Foundation the Leakey FoundationSan Francisco, CACharity$2,000apps.irs.gov
American School in London American School in LondonLondon, UKCharity$1,000apps.irs.gov
Ca Highway Patrol 11-99 Ca Highway Patrol 11-99Sacramento, CACharity$1,000apps.irs.gov
California State Parks FND California State Parks FNDSan Francisco, CACharity$1,000apps.irs.gov
Damon Runyon Cancer Research FND Damon Runyon Cancer Research FNDNew York, NYCharity$1,000apps.irs.gov
Ocean Conservancy Ocean ConservancySanta Cruz, CACharity$1,000apps.irs.gov
Pollinator Partnership Pollinator PartnershipSan Francisco, CACharity$1,000apps.irs.gov
SRF Fellowship SRF FellowshipSan Francisco, CACharity$1,000apps.irs.gov
San Mateo Public Library San Mateo Public LibrarySan Mateo, CACharity$1,000apps.irs.gov
Stanford (hoover Institution) Stanford (hoover Institution)Stanford, CACharity$1,000apps.irs.gov
The Heritage Foundation the Heritage FoundationWashington, DCCharity$1,000apps.irs.gov
Commonwealth Club of Ca Commonwealth Club of CaSan Francisco, CACharity$600apps.irs.gov
Filoli FiloliWoodside, CACharity$500apps.irs.gov
SG Komen for the Cure SG Komen for the CureDallas, TXCharity$400apps.irs.gov
National Law Enforcement Officers M National Law Enforcement Officers Memorial FundWashington, DCCharity$200apps.irs.gov
American Cornerstone Institute American Cornerstone InstituteWashington, DCCharity$100apps.irs.gov

States funded

Recipient stateGranted
California$533,800
Massachusetts$105,000
Minnesota$75,000
Illinois$50,000
Pennsylvania$10,000
New York$5,000
Connecticut$2,000
District of Columbia$1,300

Updated November 17, 2025. Read from IRS Form 990-PF e-file data. Public domain (U.S. government work). Grants are as each foundation reported them to the IRS on its Form 990-PF. Grants to individuals are left out. A grant has a cause only where the recipient's name and city match one organization in the IRS Business Master File, and the cause is that organization's NTEE major group. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.