· Private foundation
Jack & Valerie Guenther Foundation
Its FY2025 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.
What you funded, over time
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 74% of JACK & VALERIE GUENTHER FOUNDATION’s grantee dollars fall outside its nine largest cause areas, whether because the recipient carries no IRS cause code or because its cause sits in the long tail. A chart would be mostly one residual band and misrepresent the portfolio.
Where the money goes
Your grants by size, and where they go.
The 35 grants below total $2,518,180 — the rows itemised in this filing. The $4,560,703 headline is the total grant expense reported on the return, so the remaining $2,042,523 is giving the schedule does not break out: grants under the $5,000 itemisation floor, grants to individuals, and grants reported on other schedules. Every figure below describes the itemised rows only.
By grant size · FY2024
- Under $10k17 grants · $32k
- $10k–50k15 grants · $271k
- $50k–250k1 grant · $100k
- $250k+2 grants · $2.1M
| Recipient | Amount |
|---|---|
| National Western Art Foundation a/k/a Briscoe Western Art Museum | $1,059,740 |
| National Western Art Foundation a/k/a Briscoe Western Art Museum | $1,055,250 |
| CHRISTUS Children's Foundation | $100,000 |
| The Heritage Foundation | $30,000 |
| Sigma Chi Foundation | $25,200 |
| 2024 Medal of Honor Convention | $20,000 |
| Judicial Watch, Inc. | $20,000 |
| San Antonio Stock Show and Rodeo | $20,000 |
| Charity Ball Association of San Antonio | $20,000 |
| Conservative Partnership Institute | $20,000 |
| San Antonio Public Library Foundation | $20,000 |
| The Leadership Institute | $20,000 |
| St. Luke's Episcopal Church | $15,000 |
| United Way of San Antonio & Bexar County | $15,000 |
| Capital Research Center | $15,000 |
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
12 repeat relationships — 12 still active in FY2024, 0 since wound down; 21 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2024, 93% of grant dollars renewed an existing relationship; $187k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
- CCCHRISTUS CHILDREN'S FOUNDATION2× · 2023–2024 · $100k · revenue +17%
- TCTHE CHARITY BALL ASSOCIATION OF SAN ANTONIO INC2× · 2023–2024 · $30k · revenue +5%
- MSMIND SCIENCE FOUNDATION2× · 2023–2024 · $11k · revenue +30%
Funded once
- ATAlamo Trust Incgraduatedone grant, 2023 · $1.0M · revenue +26%
- SASAN ANTONIO GENEALOGICAL AND HISTORICAL SOCIETYone grant, 2023 · $100k · revenue -15% · 61% of their budget
- SMSt Mary's Universitygraduatedone grant, 2023 · $50k · revenue +25%
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
The witte museum inspires people to shape the future of texas through transformative and relevant experiences in nature, science and culture.
As a leading research university with a distinctive commitment to undergraduate education, Rice University aspires to path breaking research, unsurpassed teaching, and contributions to the betterment of our world. It seeks to fulfill this…
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.
Uatx is a nonprofit dedicated to building a liberal arts university committed to freedom of inquiry, freedom of conscience, and civil discourse. to maintain these principles, the university will be fiercely independent financially,…
To generate superior long-term investment returns to support The University of Texas and Texas A&M University systems as they provide world-class teaching, push the boundaries of discovery, and achieve excellence in patient healthcare for…
SAA empowers its members to understand humanity's past through ethically-based scientific and humanistic investigation, to promote preservation of archaeological resources and cultural heritage through support of legislation and education,…
TSHA Publications and Digital Gateway content delivery. Program Summary See Schedule O for details: Handbook of Texas, Southwest Historical Quarterly, TSHA Press, Texas Almanac, Legacy of Texas Online Store, Digital Gateway, Texas Day by…
The institute's mission, as set out in its certificate of incorporation, is to promote the clarification and simplification of the law and its better adaptation to social needs, to secure the better administration of justice, and to…
The george & barbara bush foundation strives to preserve the historic legacies of president and mrs. george h.w. bush.
Stanford university is one of a select group of american universities that have achieved eminence in both undergraduate and graduate education and research - cont'd sch o.
Trinity university is an independent co-educational university whose mission is excellence in the interrelated areas of teaching, research and services.
For reference, the grantee most central to the portfolio’s shape is The Heritage Foundation and the most unlike its peers is Mind Science Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
For each theme you fund, this compares how the sector’s money is shifting with how your own giving is shifting.
Sector change and giving change are each shown relative to their own range, growing (right) or shrinking (left); both normalized, so inflation isn’t mistaken for growth.
Your grantees are a median of 53 years old; the field is 12. You back the established end — and your money leans older still.
The field is 26% startups (under 5 years old) — 3% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 15% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
32 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 32 of the 50 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds Alamo Trust Inc ↗
- Who funds Remember the Alamo Foundation ↗
- Who funds CHRISTUS CHILDREN'S FOUNDATION ↗
- Who funds SAN ANTONIO GENEALOGICAL AND HISTORICAL SOCIETY ↗
- Who funds TEXAS BIOMEDICAL RESEARCH INSTITUTE ↗
- Who funds St Mary's University ↗
- Who funds THE CHARITY BALL ASSOCIATION OF SAN ANTONIO INC ↗
- Who funds THE HERITAGE FOUNDATION ↗
- Who funds Sigma Chi Foundation ↗
- Who funds Conservative Partnership Institute ↗
- Who funds SAN ANTONIO PUBLIC LIBRARY FOUNDATION ↗
- Who funds Leadership Institute ↗
- Who funds SAN ANTONIO BOTANICAL GARDEN SOCIETY INC ↗
- Who funds JUDICIAL WATCH INC ↗
- Who funds UNITED WAY OF SAN ANTONIO AND BEXAR COUNTY ↗
- Who funds CAPITAL RESEARCH CENTER ↗
- Who funds MIND SCIENCE FOUNDATION ↗
- Who funds Young America's Foundation ↗
- Who funds BRIGHTON CENTER ↗
- Who funds NRA FOUNDATION INC ↗
- Who funds Leija Family Foundation ↗
- Who funds American Museum of Natural History ↗
- Who funds METROPOLITAN MUSEUM OF ART ↗
- Who funds SWEET BRIAR INSTITUTE ↗
- Who funds NATIONAL COWBOY AND WESTERN HERITAGE MUSEUM ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: Charitable Foundation Frost F0359600 · The Brown Foundation Inc · V H McNutt Memorial Foundation Inc · The Marshall Steves Foundation · Amy Shelton McNutt Charitable Trust · Elizabeth Huth Coates Charitable Foundation of 1992 · The Nancy Wood Moorman Foundation · Pryor Myra Stafford Char Tr F0030100 · Betty Stieren Kelso Foundation · Nancy Smith Hurd Foundation · Greater Houston Community Foundation · San Antonio Area Foundation
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Warm introductions · Powered by PlinthPlus
How do I get to Jack & Valerie Guenther Foundation?
Find your warmest path to Jack & Valerie Guenther 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.