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Jack & Valerie Guenther Foundation at a glance

· 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.

$4.6M
Granted FY2024still arriving
35
Grants FY2024still arriving
7
States reached
$1.1M
Largest
01What it fundsRead
02Its granteesRead
03Its fieldRead
04Through PlinthRead
01What it funds
0193% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2021 to 2025.

Arts & Culture$5.5MHealth$194kEducation$137kReligion$115kPublic Benefit$110kRecreation & Sports$70kPhilanthropy$37kEnvironment$31kOther$0
02FY2024 · 35 grants

Where the money goes

Grants by size, and the largest recipients.

How this is measured
The 35 grants below total $2,518,180, the rows itemized in this filing. The $4,560,703 headline is the total grant expense on the return; the other $2,042,523 is giving the schedule does not break out (grants under the $5,000 itemization floor, grants to individuals, grants on other schedules). Every figure below describes the itemized rows only.

By grant size · FY2024

  • Under $10k17 grants · $32k
  • $10k–50k15 grants · $271k
  • $50k–250k1 grant · $100k
  • $250k+2 grants · $2.1M
$10,000
Median grant
7
States reached
$57M
Total assets
Largest grants
RecipientAmount
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
San Antonio Stock Show and Rodeo$20,000
The Leadership Institute$20,000
Charity Ball Association of San Antonio$20,000
San Antonio Public Library Foundation$20,000
Conservative Partnership Institute$20,000
Judicial Watch, Inc.$20,000
St. Luke's Episcopal Church$15,000
United Way of San Antonio & Bexar County$15,000
Capital Research Center$15,000
02Its grantees
repeat funding

Who it funds again

Organizations funded in more than one year, against those funded once.

77%of every dollar goes to organizations it has funded before.
$4.8M · 12 repeat orgs$1.4M to everyone else

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

Re-uppedFunded once

Organizations

12
16

Total granted

$4.8M
$1.2M

Median revenue growth · since first grant

-5%
+3%

Still filing today

58%
50%

New vs renewed · share of each year

In FY2024, 93% of grant dollars renewed an existing relationship; $187k went to new ones.

50%100%’23’24
RenewedFirst-time

Where new relationships form · theme of each grantee’s first grant

’23’24
Arts & CultureEducationPhilanthropyHealthPublic BenefitEnvironmentOther
How this is measured
First-time means a grantee’s first year in the filing window; renewed means funded in an earlier year too. The renewed share climbs naturally as a portfolio matures, so the signal is a year that bucks it (a wave of new grantees). 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

  • CC
    CHRISTUS CHILDREN'S FOUNDATION
    2× · 2023–2024 · $100k · revenue +17%
  • TC
    THE CHARITY BALL ASSOCIATION OF SAN ANTONIO INC
    2× · 2023–2024 · $30k · revenue +5%
  • MS
    MIND SCIENCE FOUNDATION
    2× · 2023–2024 · $11k · revenue +30%

Funded once

  • AT
    Alamo Trust Incgraduated
    one grant, 2023 · $1.0M · revenue +26%
  • SA
    SAN ANTONIO GENEALOGICAL AND HISTORICAL SOCIETY
    one grant, 2023 · $100k · revenue -15% · 61% of their budget
  • SM
    St Mary's Universitygraduated
    one grant, 2023 · $50k · revenue +25%
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.

03Its field

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.

1
Witte Museum

The witte museum inspires people to shape the future of texas through transformative and relevant experiences in nature, science and culture.

Arts & Culture
2
William Marsh Rice University

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…

Education
3
United States Naval Institute

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.

—
4
Uatx

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,…

Education
5
The University of TexasTexas a&M Investment Management Company

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…

Education
6
Kimbell Art Foundation
Arts & Culture
7
Society for American Archaeology

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,…

Arts & Culture
8
The Texas State Historical Association

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…

Arts & Culture
9
American Law Institute

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…

Crime & Legal
10
The George and Barbara Bush Foundation

The george & barbara bush foundation strives to preserve the historic legacies of president and mrs. george h.w. bush.

Education
11
The Board of Trustees of the Leland Stanford Junior University

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.

Education
12
Trinity University

Trinity university is an independent co-educational university whose mission is excellence in the interrelated areas of teaching, research and services.

Education
How this is measured
The grantee most central to the portfolio’s shape is The Heritage Foundation; 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.
03the grantee network

32 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. 32 of the 50 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.

1
Load-bearing (≥25% of a budget)
0
Early backer (in before they grew)
32/32
Grantees still filing
11/32
Grew since first funded

Where the money sits, by cause and then by grantee

National Western Art Foundation a/k/a Briscoe Western Art Museum: $4,189,700 · OtherNational Western Art Foundation a/k/a Briscoe Western Art Museum+27 more: $413,884 · Other+27 moreAlamo Trust Inc: $1,000,000 · Arts & CultureAlamo Trust IncRemember the Alamo Foundation: $162,000 · Arts & CultureRemember the Alamo Fo…+5 more: $23,000 · Arts & CultureCHRISTUS CHILDREN'S FOUNDATION: $100,200 · HealthTEXAS BIOMEDICAL RESEARCH INSTITUTE: $91,900 · HealthTHE HERITAGE FOUNDATION: $30,000 · Public BenefitLeadership Institute: $20,000 · Public BenefitJUDICIAL WATCH INC: $20,000 · Public BenefitTHE CHARITY BALL ASSOCIATION OF SAN ANTONIO INC: $30,000 · PhilanthropyUNITED WAY OF SAN ANTONIO AND BEXAR COUNTY: $19,500 · PhilanthropyCAPITAL RESEARCH CENTER: $15,000 · PhilanthropySigma Chi Foundation: $25,200 · EducationConservative Partnership Institute: $20,000 · EducationBRIGHTON CENTER: $6,000 · Education+3 more: $1,900 · EducationSAN ANTONIO BOTANICAL GARDEN SOCIETY INC: $20,000 · Environment
Other$4,603,584Arts & Culture$1,185,000Health$192,100Public Benefit$70,000Philanthropy$64,500Education$53,100Environment$20,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$100k$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetAlamo Trust Inc: $1,000,000 over 1y, 1.4% of budgetRemember the Alamo Foundation: $162,000 over 2y, 0.5% of budgetCHRISTUS CHILDREN'S FOUNDATION: $100,200 over 2y, 0.5% of budgetSAN ANTONIO GENEALOGICAL AND HISTORICAL SOCIETY: $100,000 over 1y, 61% of budgetTEXAS BIOMEDICAL RESEARCH INSTITUTE: $91,900 over 2y, 0.1% of budgetSt Mary's University: $50,000 over 1y, 0.0% of budgetTHE HERITAGE FOUNDATION: $30,000 over 1y, 0.0% of budgetTHE CHARITY BALL ASSOCIATION OF SAN ANTONIO INC: $30,000 over 2y, 0.9% of budgetSigma Chi Foundation: $25,200 over 1y, 0.2% of budgetLeadership Institute: $20,000 over 1y, 0.0% of budgetConservative Partnership Institute: $20,000 over 1y, 0.1% of budgetSAN ANTONIO BOTANICAL GARDEN SOCIETY INC: $20,000 over 1y, 0.2% of budgetSAN ANTONIO PUBLIC LIBRARY FOUNDATION: $20,000 over 1y, 1.3% of budgetJUDICIAL WATCH INC: $20,000 over 1y, 0.0% of budgetUNITED WAY OF SAN ANTONIO AND BEXAR COUNTY: $19,500 over 2y, 0.0% of budgetCAPITAL RESEARCH CENTER: $15,000 over 1y, 0.2% of budgetMIND SCIENCE FOUNDATION: $11,000 over 2y, 1.1% of budgetYoung America's Foundation: $10,000 over 1y, 0.0% of budgetBRIGHTON CENTER: $6,000 over 1y, 0.0% of budgetNRA FOUNDATION INC: $3,500 over 1y, 0.0% of budgetLeija Family Foundation: $1,750 over 1y, 11% of budgetAmerican Museum of Natural History: $1,500 over 1y, 0.0% of budgetMETROPOLITAN MUSEUM OF ART: $1,200 over 1y, 0.0% of budgetSWEET BRIAR INSTITUTE: $1,000 over 1y, 0.0% of budgetNATIONAL COWBOY AND WESTERN HERITAGE MUSEUM: $725 over 1y, 0.0% of budgetTexas A&M Foundation: $500 over 1y, 0.0% of budgetALAMO HEIGHTS SCHOOL FOUNDATION: $400 over 2y, 0.0% of budgetANIMAL DEFENSE LEAGUE OF TEXAS: $200 over 1y, 0.0% of budgetWOUNDED WARRIOR PROJECT INC: $200 over 1y, 0.0% of budgetTHE NATIONAL WORLD WAR II MUSEUM INC: $200 over 1y, 0.0% of budgetBATTLE OF FLOWERS ASSOCIATION: $100 over 1y, 0.0% of budgetJUNIOR LEAGUE OF SAN ANTONIO INC: $100 over 1y, 0.0% of budget
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.

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.

Charitable Foundation…The Brown Foundation …V H McNutt Memorial F…The Marshall Steves F…Amy Shelton McNutt Ch…Elizabeth Huth Coates…The Nancy Wood Moorma…Pryor Myra Stafford C…Betty Stieren Kelso F…Nancy Smith Hurd Foun…Greater Houston Commu…San Antonio Area Foun…
Charitable Foundation Frost F0359600TX22.1× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

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

How this is measured
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. Overlap is association, not proof of shared intent.
04Through Plinth

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.

On method. Every financial figure here is read from IRS e-file XML, the funder’s own 990/990-PF, and from the multi-year returns of the 50 grantees we resolved, each linked to its source. Grantee outcomes are each organization’s own program-service reporting (Form 990, Part III), read as association with funding, never as caused by it. Low-confidence name matches are suppressed rather than guessed. How we build these →

How this is measured
Each figure carries one of six labels. Filed is what the funder reported on its return. Official is another government record about an organization, such as a federal award or a charity register, joined by name where no shared identifier exists. Resolved is an identity we worked out where the filing named a recipient without an EIN, kept only above a measured confidence threshold. Computed is arithmetic over those, like themes, portfolio clusters and co-funder strength. Context is a statistic about a place rather than about an organization, which is what the need overlay is: it describes the area a grantee’s address sits in, not where its work lands. Inferred is drawn by a model from text, like the partnerships read out of public news and organization websites. Each is labeled where it appears.

Generated from the IRS Form 990-PF e-file return for fiscal year 2024, released 2024. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

Possibly out of date. A more recent filing (FY2025) is on record and reports $5.2M of grant expense with no grantee named in the published copy. A private foundation itemizes every grant it makes, so a return carrying none has filed its list as an attachment that the public copy does not include. The figures above are therefore from FY2024, the most recent year this funder’s grantee list reached the public record.

Source object · view filing

Play a game based on Jack & Valerie Guenther’s filings →

More from the funding graph

The unnamed billions
grants reported with no recipient in the public record
The regranting layer
51% of grant dollars land in the regranting layer
The DAF merry-go-round
$9.7B circulates between donor-advised funds
The endowment market
who holds foundation money, and what just moved
The camps
funders cluster by geography, not ideology
By state
where grant money is based, and what stays home