The Thomas and Stacey Siebel Foundation
Invitation OnlyRedwood City, California · EIN 94-3256331 · Private foundation
Grants paid (2024)$56M
Organizations funded22
Typical grant$100,000
Total assets$69.9M
Half of its grants to organizations were between $15,000 and $500,000.
From the return
How to apply
On its return for tax year 2024 the foundation checked the box saying it only makes contributions to preselected charitable organizations and does not accept unsolicited requests for funds.
What it funds
Share of grant lines on the latest return, classified from the purpose each grant states.
Where it gives
63% of grants went outside California.
Grants paid in tax year 2024
| Recipient | Location | Purpose | Amount |
|---|---|---|---|
| University of Illinois Fdn | Chicago, IL | To support general operations | $50,000,000 |
| Salvation Army - Helena Mt | Helena, MT | To provide food and shelter to homeless families and individuals in the helena area | $1,000,000 |
| Salvation Army - San Francisco | San Francisco, CA | To provide food and shelter to homeless families and individuals in the san francisco area | $1,000,000 |
| Salvation Army - San Jose | San Jose, CA | To provide food and shelter to homeless families and individuals in the san jose area | $1,000,000 |
| Salvation Army New York City | New York, NY | To provide food and shelter to homeless families and individuals in manhattan | $1,000,000 |
| Salvation Army - Great Falls Mt | Great Falls, MT | To provide food and shelter to homeless families and individuals in the great falls area | $500,000 |
| Bob Hoover Academy | Salinas, CA | To support general operations | $320,000 |
| Siebel Scholars Foundation | Redwood City, CA | To support general operations | $315,000 |
| Salvation Army - Billings Mt | Billings, MT | To provide food and shelter to homeless families and individuals in the billings area | $250,000 |
| Hoover Institution | Stanford, CA | To support general operations | $200,000 |
| Aopa Foundation | Frederick, MD | To support general operations | $132,000 |
| American Academy of Arts & Sciences | Cambridge, MA | To support general operations | $100,000 |
| Augusta Volunteer Fire Department | Augusta, MT | To assist in providing emergency services | $25,000 |
| Wolf Creek School | Wolf Creek, MT | To support general operations | $25,000 |
| Wolf Creek Volunteer Fire Dept | Wolf Creek, MT | To protect the community | $25,000 |
| Augusta Volunteer Ambulance Services | Augusta, MT | To assist in providing emergency services | $15,000 |
| Montana Game Warden's Association | Wolf Creek, MT | To support general operations | $15,000 |
| Children's Health Council | Palo Alto, CA | To support general operations | $10,000 |
| Cteta Ltd the Horse Park at Woodside | Redwood City, CA | To support general operations | $10,000 |
| Recreational Aviation Foundation | Bozeman, MT | To support general operations | $10,000 |
| The Woodside Trail Club | Woodside, CA | To support general operations | $10,000 |
| Iac Chapter 38 | Oshkosh, WI | To support general operations | $1,000 |
Giving by year
| Tax year | Grants paid | Grant lines |
|---|---|---|
| 2024 | $55,963,000 | 22 |
| 2023 | $6,244,343 | 23 |
Sources
- IRS Form 990-PF, tax year 2024, filed Nov 13, 2025 - IRS e-file batch, object ID 202503179349101715
- IRS Tax Exempt Organization Search for EIN 94-3256331
- Profile updated Nov 5, 2026
Facts on this page come from the foundation's own IRS Form 990-PF filings as published by the IRS. Grantvello does not know whether a foundation is accepting proposals right now: a past grant is not an open opportunity. Always confirm current guidelines with the funder before applying.