· Private foundation
Louis H and Mary Patricia Stumberg Foundation
Its FY2025 filing reports that it accepted unsolicited grant applications.
What you funded, over time
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 46% of LOUIS H AND MARY PATRICIA STUMBERG 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.
By grant size · FY2025
- Under $10k5 grants · $28k
- $10k–50k13 grants · $285k
- $50k–250k9 grants · $535k
| Recipient | Amount |
|---|---|
| Individual grant recipient | $100,000 |
| Trinity University | $75,000 |
| Individual grant recipient | $60,000 |
| YOSA | $50,000 |
| Headwaters at Incarnate Word | $50,000 |
| Brighton Center | $50,000 |
| UNITED WAY OF SAN ANTONIO | $50,000 |
| SUNSHINE COTTAGE SCHOOL FOR DEAF CHILDREN | $50,000 |
| LAITY LODGE FOUNDATION | $50,000 |
| SAN ANTONIO BOTANICAL GARDEN SOCIETY INC | $40,000 |
| CHILDRENS BEREAVEMENT CENTER | $40,000 |
| THE MCNAY ART MUSUEM | $40,000 |
| UTSA School of Music | $35,000 |
| Army Residence Community | $25,000 |
| Individual grant recipient | $25,000 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Your human-services grants (FY17–24, $57k) land where the poverty rate runs at 16%, against an area that typically sits at 11%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
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.
And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +42% since the first grant, against +42% for the ones you funded once.
30 repeat relationships — 19 still active in FY2025, 11 since wound down; 8 grantees were first funded in FY2025 (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 FY2025, 89% of grant dollars renewed an existing relationship; $95k 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
- RCROTARY CLUB OF SAN ANTONIO FOUNDATION2× · 2019–2021 · $333k · revenue +541% · 81% of their budget
- TUTrinity University3× · 2021–2025 · $313k · revenue +14%
- BCBRIGHTON CENTER3× · 2023–2025 · $250k · revenue +5%
Funded once
- UOUNIVERSITY OF TEXAS AT SAN ANTONIOone grant, 2017 · $200k
- TFTHE FOUNDATION AT SHIELD RANCHone grant, 2021 · $75k · revenue -69%
- HSHE STUMBERG ORPHANS CRIPPLED CHILDREN'S & HANDICAPone grant, 2024 · $68k
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.
Partner with families to provide students a christ-centered education while fostering a life of faith and service. the school desires to associate with like-minded teachers, administrators, staff, parents, and students to communicate the…
To foster human and community development through community-based arts.
Publishing a local online news source. We believe a well informed and connected community is essential to making San Antonio a better place to live, work and play.
The mission of the san antonio medical foundation is to improvehealth care, advance biomedical science, and enhance communitywell-being by providing leadership & active stewardship of our landand other assets.
San antonio foster care and adoption services inc. is a licensed child placement agency in the state of texas. the organization cares for children placed in foster care by the state of texas.
The mission of Southwest Winners Foundation is to provide an adaptive and effective learning environment that prepares students for success in the workplace and/or college.
The mission of greater:satx is to lead the developemnt and diversification of san antonio regional economy through the recruitment and expansion of qualify employers and job producing investments.
Valor's mission is to educate the whole person in authentic communities for a full human life. Through our K-12 tuition-free classical charter schools and the Valor Institute, we build communities dedicated to wisdom, virtue, and…
At Discovery School, our mission is to inspire and nurture the love of learning in young children and their families. The School offers an enhanced early childhood education for children 2 through 7 years to provide them with the skills…
For reference, the grantee most central to the portfolio’s shape is Childrens Bereavement Center of South Texas and the most unlike its peers is The Foundation At Shield Ranch. 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 39 years old; the field is 13. You back the established end — and your money leans older still.
The field is 25% startups (under 5 years old) — 3% of your grantees by number, and just 0% of your money.
The orgs you fund almost never close — 3% 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.
34 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. 34 of the 57 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 ROTARY CLUB OF SAN ANTONIO FOUNDATION ↗
- Who funds Trinity University ↗
- Who funds BRIGHTON CENTER ↗
- Who funds UNITED WAY OF SAN ANTONIO AND BEXAR COUNTY ↗
- Who funds SAN ANTONIO BOTANICAL GARDEN SOCIETY INC ↗
- Who funds SUNSHINE COTTAGE SCHOOL FOR DEAF CHILDREN ↗
- Who funds Laity Lodge Foundation ↗
- Who funds Headwaters at Incarnate Word Inc ↗
- Who funds THE FOUNDATION AT SHIELD RANCH ↗
- Who funds Brackenridge Park Conservancy ↗
- Who funds H E BUTT FOUNDATION ↗
- Who funds MCNAY ART MUSEUM ↗
- Who funds Austin Classical School ↗
- Who funds SAN ANTONIO SYMPHONY LEAGUE ↗
- Who funds PRESBYTERIAN CHILDREN'S HOMES & SERVICES ↗
- Who funds SABINAL ALUMNI ↗
- Who funds MAGIK CHILDRENS THEATRE OF SAN ANTONIO DBA THE MAGIK THEATRE ↗
- Who funds SAMMinistries Social Enterprises ↗
- Who funds CHILDRENS BEREAVEMENT CENTER OF SOUTH TEXAS ↗
- Who funds TEXAS BIOMEDICAL RESEARCH INSTITUTE ↗
- Who funds CHARITY BALL LEGACY FOUNDATION INC ↗
- Who funds SAN ANTONIO CHILDREN'S MUSEUM ↗
- Who funds Witte 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: San Antonio Area Foundation · Elizabeth Huth Coates Charitable Foundation of 1992 · Faye L & William L Cowden Charitable Foundation · Pryor Myra Stafford Char Tr F0030100 · Nancy Smith Hurd Foundation · Harvey E Najim Charitable Foundation · The Texas Cavaliers Charitable Foundation · Betty Stieren Kelso Foundation · The Charity Ball Association of San Antonio Inc · The Brown Foundation Inc · John R & Greli N Less Charitable Trust #FE324 · Charitable Foundation Frost F0359600
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.
Government reliance of your grantees
Every dot is one organization Louis H and Mary Patricia Stumberg Foundation funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.
Warm introductions · Powered by PlinthPlus
How do I get to Louis H and Mary Patricia Stumberg Foundation?
Find your warmest path to Louis H and Mary Patricia Stumberg 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.