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Data / Foundation grants / The Thomas and Stacey Siebel Foundation

The Thomas and Stacey Siebel Foundation: 22 grants to organizations, $56 million (tax year ended December 2024)

The Thomas and Stacey Siebel Foundation, a private foundation in Redwood City, CA, paid 22 grants to organizations totaling $55,963,000 in its tax year ended December 2024, according to its Form 990-PF filed with the IRS on November 13, 2025. The largest was $50,000,000 to University of Illinois FDN in Chicago, IL for to support general operations.

SpecStream is the live web data engine for teams and agents. It reads every private foundation's Form 990-PF as the IRS publishes it, and this page is that reading. Ask for the foundations that fund your cause in your state, with the amounts and purposes, and new grants arrive in your sheet, CRM, Slack or agent as the returns are filed.

EIN
943256331
Based in
Redwood City, CA
Assets
$69,890,219
Grants paid
$55,963,000
Tax year ended
December 2024

Grants paid, tax year ended December 2024

From the Form 990-PF filed November 13, 2025, IRS object ID 202503179349101715. It reported $55,963,000 in grants paid; 22 grants to organizations are listed.

RecipientLocationPurposeCauseAmountSource
University of Illinois FDNChicago, ILTo support general operationsEducation$50,000,000apps.irs.gov
Salvation Army - Helena MtHelena, MTTo provide food and shelter to homeless families and individuals in the helena area$1,000,000apps.irs.gov
Salvation Army - San FranciscoSan Francisco, CATo provide food and shelter to homeless families and individuals in the san francisco area$1,000,000apps.irs.gov
Salvation Army - San JoseSan Jose, CATo provide food and shelter to homeless families and individuals in the san jose area$1,000,000apps.irs.gov
Salvation Army New York CityNew York, NYTo provide food and shelter to homeless families and individuals in manhattan$1,000,000apps.irs.gov
Salvation Army - Great Falls MtGreat Falls, MTTo provide food and shelter to homeless families and individuals in the great falls area$500,000apps.irs.gov
Bob Hoover AcademySalinas, CATo support general operationsEducation$320,000apps.irs.gov
Siebel Scholars FoundationRedwood City, CATo support general operationsPhilanthropy, voluntarism and grantmaking foundations$315,000apps.irs.gov
Salvation Army - Billings MtBillings, MTTo provide food and shelter to homeless families and individuals in the billings area$250,000apps.irs.gov
Hoover InstitutionStanford, CATo support general operations$200,000apps.irs.gov
Aopa FoundationFrederick, MDTo support general operationsPublic safety, disaster preparedness and relief$132,000apps.irs.gov
American Academy of Arts & SciencesCambridge, MATo support general operationsSocial science$100,000apps.irs.gov
Augusta Volunteer Fire DepartmentAugusta, MTTo assist in providing emergency servicesPublic safety, disaster preparedness and relief$25,000apps.irs.gov
Wolf Creek SchoolWolf Creek, MTTo support general operations$25,000apps.irs.gov
Wolf Creek Volunteer Fire DeptWolf Creek, MTTo protect the community$25,000apps.irs.gov
Augusta Volunteer Ambulance ServicesAugusta, MTTo assist in providing emergency services$15,000apps.irs.gov
Montana Game Warden's AssociationWolf Creek, MTTo support general operations$15,000apps.irs.gov
Children's Health CouncilPalo Alto, CATo support general operations$10,000apps.irs.gov
Cteta LTD the Horse Park at WoodsideRedwood City, CATo support general operations$10,000apps.irs.gov
Recreational Aviation FoundationBozeman, MTTo support general operationsHuman services$10,000apps.irs.gov
The Woodside Trail ClubWoodside, CATo support general operations$10,000apps.irs.gov
Iac Chapter 38Oshkosh, WITo support general operations$1,000apps.irs.gov

Causes funded

From grants whose recipient has a cause.

States funded

Recipient stateGranted
Illinois$50,000,000
California$2,865,000
Montana$1,865,000
New York$1,000,000
Maryland$132,000
Massachusetts$100,000
Wisconsin$1,000

Also on SpecStream

Updated November 13, 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.