· Private foundation
The Thomas and Stacey Siebel Foundation
Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What it funded, over time
Every grant placed by its stated purpose and the recipient’s mission, by year, FY2020 to 2024.
Where the money goes
Grants by size, and the largest recipients.
By grant size · FY2024
- Under $10k1 grant · $1k
- $10k–50k9 grants · $145k
- $50k–250k3 grants · $432k
- $250k+9 grants · $55M
| Recipient | Amount |
|---|---|
| UNIVERSITY OF ILLINOIS FDN | $50,000,000 |
| SALVATION ARMY - HELENA MT | $1,000,000 |
| SALVATION ARMY - SAN JOSE | $1,000,000 |
| SALVATION ARMY NEW YORK CITY | $1,000,000 |
| SALVATION ARMY - SAN FRANCISCO | $1,000,000 |
| SALVATION ARMY - GREAT FALLS MT | $500,000 |
| BOB HOOVER ACADEMY | $320,000 |
| SIEBEL SCHOLARS FOUNDATION | $315,000 |
| SALVATION ARMY - BILLINGS MT | $250,000 |
| HOOVER INSTITUTION | $200,000 |
| AOPA FOUNDATION | $132,000 |
| AMERICAN ACADEMY OF ARTS & SCIENCES | $100,000 |
| AUGUSTA VOLUNTEER FIRE DEPARTMENT | $25,000 |
| WOLF CREEK VOLUNTEER FIRE DEPT | $25,000 |
| WOLF CREEK SCHOOL | $25,000 |
Does the money reach high-need areas?
Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.
Its human-services grants (FY22–24, $110k) land where the poverty rate runs at 10%, against an area that typically sits at 7%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of its grants land in higher-need ZIPs.
How this is measured
Which US states its grants reach
How this is measured
Where the work is directed
The same grants placed two ways: where each recipient sits, and where its stated purpose sends the money.
About 12% of The Thomas and Stacey Siebel Foundation’s grant dollars are earmarked for a different county than the recipient’s own address.
How this is measured
Who it funds again
Organizations funded in more than one year, against those funded once.
26 repeat relationships: 18 still active in FY2024, 8 since wound down; 3 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Still filing today
New vs renewed · share of each year
In FY2024, 10% of grant dollars renewed an existing relationship; $50M went to new ones.
Where new relationships form · theme of each grantee’s first grant
How this is measured
Backed again, and grew
- ECEASTSIDE COLLEGE PREPARATORY SCHOOL INC4× · 2020–2023 · $1.0M · revenue +124%
- AEAMERICAN ENTERPRISE INSTITUTE FOR PUBLIC POLICY RESEARCH4× · 2020–2023 · $1.0M · revenue +57%
- BHBOB HOOVER ACADEMY3× · 2022–2024 · $676k · revenue +29% · 28% of their budget
Funded once
- USUS SAILING FOUNDATIONone grant, 2022 · $302k
- WFWOODSIDE FIRE PROTECTION DISTRICTone grant, 2020 · $67k
- ASAUGUSTA SCHOOL DISTRICTone grant, 2023 · $50k
How this is measured
Repeat means funded in two or more distinct years. Growth and survival are read from each grantee’s own subsequent IRS filings.
Closest unfunded matches
The nonprofits that most resemble its grantees but are not funded by it, scored along the direction from the rest of the field toward the portfolio. A resemblance in what they say they do, not a recommendation.
Enhance the ability of actec members to provide the most efficient and highest quality services to their clients; develop qualified trust and estate counselors; improve and reform probate, trust and tax laws, procedures, and standards of…
See schedule ouniversity corporation for atmospheric research (ucar), on behalf of, and in cooperation with its member university members, is engaged in the management of long-term atmospheric and related research and educational…
To advance the arts, sciences, and technology of aeronautics and astronautics and to nurture and promote the professionalism of those engaged in these pursuits. the institute encourages original research, fosters dissemination of new…
Aascu is a washington, d.c. based higher education association that represents the sector of over 500 regional public colleges, universities, and systems whose members share a learning and teaching centered culture, a commitment to…
American foreign service association (afsa) is both the principal advocate for the long-term institutional wellbeing of the professional career foreign service and responsible for safeguarding the interest of afsa members. (continued on…
To ensure the professional growth, personal excellence, and recognition of physician associates, and to support efforts to enable them to improve the quality, accessibility, and cost-effectiveness of patient-centered health care.
Provide an independent forum for those who dare to read, think, speak, and write to advance the professional, literary, and scientific understanding of sea power and other issues critical to global security.
Founded in 1900, aau is composed of 71 distinguished institutions in the united states and canada that continually advance society through education, research, and discovery. our u.s. member universities earn the majority of competitively…
Institute for student achievement foundation (isaf) raises funds to support the institute for student achievement (isa), which is a part of educational testing service, a section 501(c)(3) public charity, that wants all students,…
The bac is committed to provide excellence in design education grounded in practice and accessible to diverse communities.
Vision: drive positive change through the power of design and focused activism.mission: aia inspires and empowers architects to improve society and transform the world.
Acec research institute serve as the leading source of knowledge and thought leadership for creating a more sustainable, safe, secure, and technically advanced built environment. identify, fund, and provide industry wide research forecasts…
How this is measured
17 grantees tracked through their own filings, 2017–2025.
Each grant beside the grantee’s revenue from every source, year by year.
How this is measured
Counted here: distinct organizations funded across 2017 to 2025, not grant rows in a single year, so this will not match the grant count on the cover. 17 of the 34 grantees resolved in that span have returns of their own we could reconcile.
Each grantee is resolved to its own IRS returns. Association, dated; never a causal claim.
Where the money sits, by cause and then by grantee
Each grantee by its size and the funder’s share of it; top left is load-bearing
Grantee by grantee: a decade per organization, before and after funding
A decade per grantee: revenue shaded, grants as bars, all rows on one timeline.
- Who funds University of Illinois Foundation ↗
- Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
- Who funds Massachusetts Institute of Technology ↗
- Who funds THE SIEBEL SCHOLARS FOUNDATION ↗
- Who funds EASTSIDE COLLEGE PREPARATORY SCHOOL INC ↗
- Who funds AMERICAN ENTERPRISE INSTITUTE FOR PUBLIC POLICY RESEARCH ↗
- Who funds BOB HOOVER ACADEMY ↗
- Who funds AMERICAN ACADEMY OF ARTS & SCIENCES ↗
- Who funds MONTANA METH PROJECT ↗
- Who funds THE AOPA FOUNDATION INC ↗
- Who funds THE AMERICAN AGORA FOUNDATION INC ↗
- Who funds NEW YORK YACHT CLUB FOUNDATION ↗
- Who funds AUGUSTA VOLUNTEER FIRE DEPARTMENT ↗
- Who funds RECREATIONAL AVIATION FOUNDATION ↗
- Who funds THE HORSE PARK AT WOODSIDE ↗
- Who funds TAHOE FUND ↗
- Who funds CHILDREN'S HEALTH COUNCIL INC ↗
Co-funders
Grantmakers whose grantees overlap with this funder’s far more than size alone predicts. Closer means stronger alignment; arcs show where they also fund each other. Here they form a tightly interlocked group: most of these funders back each other's grantees too.
Open a dossier: Vanguard Charitable Endowment Program · Fidelity Investments Charitable Gift Fund · Donor Advised Charitable Giving Inc · Amazonsmile Foundation
How this is measured
How much its grantees rely on government
Each dot is one organization The Thomas and Stacey Siebel Foundation funds: left to right is the share of its income from government, bottom to top the share from The Thomas and Stacey Siebel Foundation. Bigger dots raise more.
- Massachusetts Institute of Technology: 35% of income from government
- American Academy of Arts & Sciences: 3% of income from government
How this is measured
Warm introductions · Powered by PlinthPlus
How do I get to The Thomas and Stacey Siebel Foundation?
Find your warmest path to The Thomas and Stacey Siebel Foundation through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.
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