· Private foundation
Gillson Longenbaugh Foundation
Its FY2021 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
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2021.
Where the money goes
Your grants by size, and where they go.
| Recipient | Amount |
|---|---|
| Vanguard Charitable Endowment | $11,985,897 |
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 (FY19–19, $5k) land where the poverty rate runs at 16%, against an area that typically sits at 13%. 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 +73% since the first grant, against +26% for the ones you funded once.
16 repeat relationships — 1 still active in FY2021, 15 since wound down.
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 FY2021, 100% of grant dollars renewed an existing relationship; $0 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
- UOUniversity of Michigan2× · 2018–2019 · $400k · revenue +195% · 93% of their budget
- TCTexas Children's Hospital2× · 2017–2019 · $288k · revenue +78%
- CSCrime Stoppers of Houston Inc2× · 2018–2020 · $122k · revenue +73%
Funded once
- RCRutgers Cancer Institute of New Jerone grant, 2018 · $250k
- BCBaylor College of Medicinegraduatedone grant, 2019 · $207k · revenue +47%
- TFTIRR Foundationgraduatedone grant, 2019 · $165k · revenue +69%
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.
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…
Assist banner health complete its mission to make health care easier so life can be better by providing integrated & coordinated care & population health management.
To create a healthier future for children and women throughout our global community by leading in patient care, education and research.
Provider of pediatric healthcare, education, research & community service
Memorial hermann health system is a nonprofit, values-driven, community-owned health system dedicated to improving health. our vision is to create healthier communities, now and for generations to come. our values are community,…
To create a healthier future for children and women throughout our global community by leading in patient care, education and research.
The organization provides medical care to improve, maintain, and restore the health of the people in the communities we serve.
Knowing that every child's life is sacred, our promise is to improve the health of every child in our region through the prevention and treatment of illness, disease and injury.
To create a healthier future for children and women throughout our global community by leading in patient care, education, and research.
Through its affiliates, thr operates an integrated healthcare system with services and facilities throughout north central texas to improve the health of the people in the communities they serve.
To provide cutting-edge cardiac care to diagnose, treat, and prevent cardiovascular diseases.
For reference, the grantee most central to the portfolio’s shape is Texas Children's Hospital and the most unlike its peers is University of Michigan. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
16 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. 16 of the 31 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 University of Michigan ↗
- Who funds Texas Children's Hospital ↗
- Who funds Baylor College of Medicine ↗
- Who funds THE METHODIST HOSPITAL FOUNDATION ↗
- Who funds TIRR Foundation ↗
- Who funds Crime Stoppers of Houston Inc ↗
- Who funds CASA DE ESPERANZA DE LOS NINOS INC ↗
- Who funds TEXAS MEDICAL CENTER FOUNDATION ↗
- Who funds UNIVERSITY OF NEW MEXICO FOUNDATION INC ↗
- Who funds THE ARC OF THE CAPITAL AREA ↗
- Who funds Camp For All Foundation ↗
- Who funds The Brookwood Community Inc ↗
- Who funds TEXAS MEDICAL CENTER ↗
- Who funds DO THE WRITE THING ↗
- Who funds Wig Out ↗
- Who funds STAR OF HOPE MISSION ↗
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: Greater Houston Community Foundation · Strake Foundation · Raymond James Charitable Endowment Fund · National Philanthropic Trust · Natl Christian Charitable Fdn Inc · Donor Advised Charitable Giving Inc · Fidelity Investments Charitable Gift Fund · Amazonsmile 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.
Government reliance of your grantees
Every dot is one organization Gillson Longenbaugh 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.