THOMAS AND STACEY SIEBEL FOUNDATION
Cite this
Plain text THOMAS AND STACEY SIEBEL FOUNDATION. furp.org, nonprofit organization profile, tax years 2020–2024. https://furp.org/org/943256331. Retrieved 2026-10-21.
APA furp.org. (n.d.). THOMAS AND STACEY SIEBEL FOUNDATION [Nonprofit organization profile; tax years 2020–2024]. Retrieved October 21, 2026, from https://furp.org/org/943256331
MLA “THOMAS AND STACEY SIEBEL FOUNDATION.” furp.org, tax years 2020–2024, https://furp.org/org/943256331. Accessed 21 Oct. 2026.
Retrieved 2026-10-21; covers tax years 2020–2024. Data: furp.org, CC BY 4.0.
2024 · Form 990PF · revenue $10.2M · expenses $57.1M · assets $69.9M
- Also known as
- FOUNDATION
- EIN
- 94-3256331
- Address
- PO BOX 5287, REDWOOD CITY, CA 94063-0287
- NTEE code
- T20Z
- Subsection
- 501(c)(3)
- Ruling year
- 1997
- Cross-check
- ProPublica Nonprofit Explorer
Each tax year counts once: when a return was amended, only the latest return for that period is used below (superseded returns stay listed, greyed, under Finances).
People paid by the organization
None of the 5 people listed on these returns reported compensation from the organization. They are listed below.
Officers and directors, no compensation reported
5 people listed on the returns with $0 (or no amount) in every compensation column: current people first. Hours are as filed on the latest return each person appears on.
| Name | Latest title | Years | Hrs/wk (latest) | Compensation | Organizations |
|---|---|---|---|---|---|
| Thomas M Siebel | PRESIDENT | 2020-2024 | 1 | $0 reported | 4 |
| Stacey Siebel | SECRETARY/CFO/TREASURER | 2020-2024 | 1 | $0 reported | 3 |
| Jennifer Stern (former) | DIRECTOR | 2022-2023 | 1 | $0 reported | 1 |
| Mark Berwick (former) | CFO/TREASURER | 2021 | 1 | $0 reported | 2 |
| Ann Akichika (former) | CFO/TREASURER | 2020 | 1 | $0 reported | 3 |
People by year
2024 · 2 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| THOMAS M SIEBEL | PRESIDENT | 1 | $0 | - | $0 | $0 | 4 |
| STACEY SIEBEL | SECRETARY/CFO/TREASURER | 1 | $0 | - | $0 | $0 | 3 |
2023 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| THOMAS M SIEBEL | PRESIDENT | 1 | $0 | - | $0 | $0 | 4 |
| STACEY SIEBEL | SECRETARY/CFO/TREASURER | 1 | $0 | - | $0 | $0 | 3 |
| JENNIFER STERN | DIRECTOR | 1 | $0 | - | $0 | $0 | 1 |
2022 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| THOMAS M SIEBEL | PRESIDENT | 1 | $0 | - | $0 | $0 | 4 |
| STACEY SIEBEL | SECRETARY/CFO/TREASURER | 1 | $0 | - | $0 | $0 | 3 |
| JENNIFER STERN | DIRECTOR | 1 | $0 | - | $0 | $0 | 1 |
2021 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| THOMAS M SIEBEL | PRESIDENT | 1 | $0 | - | $0 | $0 | 4 |
| STACEY SIEBEL | SECRETARY/CFO/TREASURER | 1 | $0 | - | $0 | $0 | 3 |
| MARK BERWICK | CFO/TREASURER | 1 | $0 | - | $0 | $0 | 2 |
2020 · 3 people listed · none paid
| Name | Title | Hrs/wk | From org | From related | Other | Total | Orgs |
|---|---|---|---|---|---|---|---|
| THOMAS M SIEBEL | PRESIDENT | 1 | $0 | - | $0 | $0 | 4 |
| STACEY SIEBEL | SECRETARY | 1 | $0 | - | $0 | $0 | 3 |
| ANN AKICHIKA | CFO/TREASURER | 1 | $0 | - | $0 | $0 | 3 |
Highest-paid independent contractors
2024 · 2 contractors · $160K
| Name | Location | Service | Paid |
|---|---|---|---|
| BLACKROCK INC | SAN FRANCISCO, CA | INVESTMENT MANAGEMENT | $104,168 |
| FRANK RIMERMAN CO LLP | PALO ALTO, CA | ACCOUNTING | $55,500 |
Who the money went to
Grants this organization reported paying: Schedule I Part II of the Form 990, or the grants-paid list on the 990-PF. Open a year for every recipient. Recipients link to their own page when the grant names an EIN we have (990-PF grants list no EIN, so those link only on an exact, unique name and state). Grants to individuals are counted; their names are not shown.
2024 · 22 grants to organizations · $56.0M
2023 · 23 grants to organizations · $6.2M
2022 · 28 grants to organizations · $7.0M
2021 · 26 grants to organizations · $20.6M
2020 · 24 grants to organizations · $6.0M
Negative amounts are returned or refunded grants; they are listed last and left out of the totals of grants paid.
Who gave
No contributors are listed on Schedule B in the e-filed returns we have for this organization.
Finances
Newest first. Each filing: its name on one row, its figures on the row beneath. Greyed filings are superseded by a later return for the same period and are left out everywhere else on this page.
| Revenue | Expenses | Assets | Net assets | Contributions | Program revenue | Officer pay | Employees | Volunteers |
|---|---|---|---|---|---|---|---|---|
| 2024 · Form 990PF | ||||||||
| $10,241,925 | $57,108,769 | $69,890,219 | $69,587,414 | $0 | - | $0 | - | - |
| 2023 · Form 990PF | ||||||||
| $5,396,362 | $7,394,501 | $116,780,977 | $116,454,255 | $0 | - | $0 | - | - |
| 2022 · Form 990PF | ||||||||
| $5,871,710 | $8,422,267 | $114,993,885 | $114,450,628 | $0 | - | $0 | - | - |
| 2021 · Form 990PF | ||||||||
| $9,137,480 | $22,811,373 | $131,945,562 | $131,693,814 | $0 | - | $0 | - | - |
| 2020 · Form 990PF | ||||||||
| $7,775,074 | $7,107,963 | $140,125,341 | $139,849,579 | $0 | - | $0 | - | - |
Funders of this organization
Not reported: no grants to this organization appear in the filings we have (tax years 2010 to 2025).
Similar organizations
Ranked without any AI: same NTEE code first, then the same NTEE group; then revenue within 2x, 5x or 10x; then the same state; then similar name and mission text. Same state only · More (100)
| Organization | State | NTEE | Latest revenue | Latest expenses | Top-paid title | Top pay | Why similar |
|---|---|---|---|---|---|---|---|
| ANDREW FOUNDATION | CA | T20 | $7,661,725 | $658,980 | PRESIDENT | $0 | Same NTEE code T20, revenue within 2x, same state |
| S L GIMBEL FOUNDATION | CA | T20 | $14,810,818 | $16,533,767 | Trustee | $0 | Same NTEE code T20, revenue within 2x, same state |
| SIJBRANDIJ FOUNDATION | CA | T20 | $17,940,646 | $6,189,173 | CHIEF EXECUTIVE OFFICER | $199,385 | Same NTEE code T20, revenue within 2x, same state |
| ANGELL FOUNDATION | CA | T20 | $12,904,298 | $8,800,068 | PRESIDENT | $407,280 | Same NTEE code T20, revenue within 2x, same state |
| SHURL AND KAY CURCI FOUNDATION | CA | T20 | $17,400,205 | $13,234,322 | SCIENCE OFFICER | $257,500 | Same NTEE code T20, revenue within 2x, same state |
| STUPSKI FOUNDATION | CA | T20 | $9,070,239 | $65,016,161 | CHIEF EXECUTIVE OFFICER | $637,748 | Same NTEE code T20, revenue within 2x, same state |
| THE BARBARA AND GERSON BAKAR FOUNDATION | CA | T20 | $9,930,967 | $6,945,988 | SENIOR PROGRAM COORD | $151,969 | Same NTEE code T20, revenue within 2x, same state |
| SMIDT FOUNDATION | CA | T20 | $8,134,180 | $17,163,900 | DIRECTOR / PRESIDENT | $0 | Same NTEE code T20, revenue within 2x, same state |
| SAAVAN FOUNDATION | CA | T20 | $10,391,937 | $83,939 | CHAIR & DIRECTOR | $0 | Same NTEE code T20, revenue within 2x, same state |
| SAKANA FOUNDATION | CA | T20 | $8,788,900 | $15,164,530 | TRUSTEE | $0 | Same NTEE code T20, revenue within 2x, same state |
| MILIAS FOUNDATION | CA | T20 | $14,559,994 | $5,002,512 | CEO | $10,000 | Same NTEE code T20, revenue within 2x, same state |
| THE SABAN FAMILY FOUNDATION | CA | T20 | $8,453,495 | $5,175,222 | DIRECTOR, NORTH AMER | $286,607 | Same NTEE code T20, revenue within 2x, same state |
| KEVIN AND NICOLE SYSTROM FOUNDATION | CA | T20 | $13,435,102 | $1,641,207 | CO-PRESIDENT/TREASURER | $0 | Same NTEE code T20, revenue within 2x, same state |
| THE KIMBALL FOUNDATION | CA | T20 | $8,351,612 | $5,013,388 | PRESIDENT | $0 | Same NTEE code T20, revenue within 2x, same state |
| SINHA FAMILY FOUNDATION | CA | T20 | $7,702,879 | $119,631 | President | $0 | Same NTEE code T20, revenue within 2x, same state |
| STONE FAMILY FOUNDATION | CA | T20 | $6,844,290 | $3,186,055 | PRESIDENT | $0 | Same NTEE code T20, revenue within 2x, same state |
| AKONADI FOUNDATION | CA | T20 | $7,077,618 | $6,855,651 | President | $517,866 | Same NTEE code T20, revenue within 2x, same state |
| LAYGEND FOUNDATION | CA | T20 | $17,759,962 | $18,997,621 | PRESIDENT & CEO | $0 | Same NTEE code T20, revenue within 2x, same state |
| SPRUCE STREET FOUNDATION | CA | T20 | $8,679,398 | $1,266,264 | President | $0 | Same NTEE code T20, revenue within 2x, same state |
| GSF FOUNDATION | CA | T20 | $6,957,543 | $2,433,118 | CFO/DIRECTOR | $0 | Same NTEE code T20, revenue within 2x, same state |
| LOUD HOUND FOUNDATION | CA | T20 | $8,057,536 | $19,073,045 | PRESIDENT | $0 | Same NTEE code T20, revenue within 2x, same state |
| KAREN AND RICK HARGROVE FOUNDATION | CA | T20 | $8,678,848 | $3,326,396 | President | $0 | Same NTEE code T20, revenue within 2x, same state |
| SIMONIAN FAMILY FOUNDATION | CA | T20 | $17,887,293 | $12,891,472 | CEO | $0 | Same NTEE code T20, revenue within 2x, same state |
| KELSON FOUNDATION | CA | T20 | $8,090,595 | $7,607,566 | PRESIDENT | $0 | Same NTEE code T20, revenue within 2x, same state |
| GUZIK FOUNDATION | CA | T20 | $7,846,226 | $4,391,708 | PRESIDENT | $0 | Same NTEE code T20, revenue within 2x, same state |
Who funds organizations like this
Grantors that funded the 100 most similar organizations. Ranked by total given to them. Foundations (990-PF) and donor-advised fund sponsors only. Same matching as Funders above (by EIN, or by name for foundations).
The full list · all similar organizations
Where the money went
Every expense line on each return, biggest first: Form 990 Part IX (with its program, management and fundraising columns), 990-EZ Part I, or 990-PF Part I. Event marks lines the organization itself describes as events. “Events” in each summary adds those lines, conferences and meetings, and the direct costs of fundraising events. Unusual is not the same as improper. Many of these patterns have ordinary explanations. Check the filing.
2024 · Form 990PF · $57,108,769 spent · pay $0 · grants $55,963,000 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $55,963,000 | 98.0% | |
| Other expenses | $638,296 | 1.1% | |
| Taxes | $342,122 | 0.6% | |
| Fees: other professional | $72,712 | 0.1% | |
| Fees: accounting | $55,500 | 0.1% | |
| Depreciation and depletion | $28,389 | 0.0% | |
| Fees: legal | $8,750 | 0.0% | |
| Total | $57,108,769 | 100% |
2023 · Form 990PF · $7,394,501 spent · pay $82,687 · grants $6,244,343 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $6,244,343 | 84.4% | |
| Other expenses | $565,833 | 7.7% | |
| Taxes | $394,688 | 5.3% | |
| Other salaries and wages | $81,202 | 1.1% | |
| Fees: accounting | $55,500 | 0.8% | |
| Fees: other professional | $47,444 | 0.6% | |
| Depreciation and depletion | $2,986 | 0.0% | |
| Pension plans and employee benefits | $1,485 | 0.0% | |
| Fees: legal | $1,020 | 0.0% | |
| Total | $7,394,501 | 100% |
2022 · Form 990PF · $8,422,267 spent · pay $134,110 · grants $7,037,977 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $7,037,977 | 83.6% | |
| Other expenses | $770,869 | 9.2% | |
| Taxes | $242,647 | 2.9% | |
| Fees: other professional | $181,423 | 2.2% | |
| Other salaries and wages | $128,542 | 1.5% | |
| Fees: accounting | $51,100 | 0.6% | |
| Pension plans and employee benefits | $5,568 | 0.1% | |
| Depreciation and depletion | $2,986 | 0.0% | |
| Fees: legal | $1,155 | 0.0% | |
| Total | $8,422,267 | 100% |
2021 · Form 990PF · $22,811,373 spent · pay $81,340 · grants $20,565,000 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $20,565,000 | 90.2% | |
| Other expenses | $1,728,371 | 7.6% | |
| Fees: other professional | $239,919 | 1.1% | |
| Taxes | $143,057 | 0.6% | |
| Other salaries and wages | $78,333 | 0.3% | |
| Fees: accounting | $50,050 | 0.2% | |
| Pension plans and employee benefits | $3,007 | 0.0% | |
| Depreciation and depletion | $2,986 | 0.0% | |
| Fees: legal | $650 | 0.0% | |
| Total | $22,811,373 | 100% |
2020 · Form 990PF · $7,107,963 spent · pay $42,049 · grants $6,017,500 · events $0
| Line | As described | Total | Share |
|---|---|---|---|
| Contributions, gifts, grants paid | $6,017,500 | 84.7% | |
| Other expenses | $701,547 | 9.9% | |
| Fees: other professional | $247,113 | 3.5% | |
| Taxes | $61,004 | 0.9% | |
| Other salaries and wages | $40,833 | 0.6% | |
| Fees: accounting | $35,750 | 0.5% | |
| Depreciation and depletion | $2,986 | 0.0% | |
| Pension plans and employee benefits | $1,216 | 0.0% | |
| Fees: legal | $14 | 0.0% | |
| Total | $7,107,963 | 100% |