· Private foundation
Clark and Charlene Thompson 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
Every grant placed by its stated purpose and the recipient’s mission, by year — across FY2017–2025.
Where the money goes
Your grants by size, and where they go.
By grant size · FY2025
- Under $10k1 grant · $6k
- $10k–50k16 grants · $270k
- $50k–250k4 grants · $280k
| Recipient | Amount |
|---|---|
| Museum of Fine Arts Houston | $100,000 |
| Houston Livestock Show and Rodeo Inc | $80,000 |
| Saint Louise House | $50,000 |
| Camp Allen Camp & Conference Center | $50,000 |
| Houston Livestock Show and Rodeo Inc | $40,000 |
| Interfaith Ministries for Greater Houston | $30,000 |
| Christian Community Service Center Inc | $25,000 |
| DePelchin's Children's Center | $25,000 |
| Big Brothers Big Sisters Lone Star | $25,000 |
| TIRR Foundation | $20,000 |
| Holocaust Museum Houston | $15,000 |
| St Michael the Archangel Catholic Church | $10,000 |
| The Church of St John the Divine | $10,000 |
| Houston Livestock Show and Rodeo Inc | $10,000 |
| Individual grant recipient | $10,000 |
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 (FY18–25, $258k) land where the poverty rate runs at 16%, against an area that typically sits at 12%. 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.
Where the work is directed
The same grants, placed two ways — where each recipient sits, and where its stated purpose earmarks the money.
About 11% of Clark and Charlene Thompson Foundation’s grant dollars are earmarked, by their stated purpose, for a different county than the recipient’s own address — money that lands at a nonprofit in one place but is meant to do its work in another. Read by recipient address, 100% of the giving stays in TX; read by stated purpose it is 93% — less of the work is directed home than the recipients' locations suggest.
Recipient view: each grant at its grantee’s ZIP, mapped to a county. Directed view: each grant at the county its stated purpose names, falling back to the recipient’s county when the purpose names no place; US grants only. A county shows only if it carries the top 95% of that view’s dollars. Purposes are read from the foundation’s own 990 grant descriptions.
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 +23% since the first grant, against 0% for the ones you funded once.
23 repeat relationships — 15 still active in FY2025, 8 since wound down; 2 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, 96% of grant dollars renewed an existing relationship; $20k 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
- TMTHE MUSEUM OF FINE ARTS HOUSTON8× · 2017–2025 · $711k · revenue +96%
HOUSTON LIVESTOCK SHOW AND RODEO INC4× · 2022–2025 · $500k · revenue +22%- CACamp Allen Camp & Conference Center6× · 2018–2025 · $315k · revenue +23%
Funded once
- SLSt Louise House (Vincare Services of Austin Foundation)one grant, 2024 · $70k
- SMSt Mary Catholic Schoolone grant, 2017 · $42k
- TBTHE BRIARWOOD SCHOOLone grant, 2024 · $25k · revenue 0%
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 mission of the Houston Museum of Natural Science shall be to preserve and advance the general knowledge of natural science; to enhance in individuals the knowledge of and delight in natural science and related subjects; and to maintain…
Plant, protect and promote trees all over the greater Houston area.
See Schedule OThe purpose of Awty International School (Awty) is to create an environment where students experience excellence every day to make their mark on the world alongside their community, in a spirit of curiosity, courage and…
The Heritage Society (THS) is a nonprofit organization founded in 1954 whose mission is to tell the stories of the diverse history of Houston and Texas through collections, exhibits, the arts, educational programs, film, video, and other…
To recognize the accomplishments and contributions of our outstanding Texas business leaders and to perpetuate and inspire the values of entrepreneurial spirit, personal integrity, and community leadership in all generations of Texans.
The Houston Local Information Initiative, Inc. provides public service journalism that reflects the civic needs of the diverse communities comprising Greater Houston.
See Schedule OSt. John's School is an independent, co-educational day school presenting a 13-year sequence of college preparatory training. A non-profit institution, it was founded in 1946 to provide the community with a school of exacting…
Family, School, and Church united in the education and support of each child - this is the founding premise upon which Presbyterian School nurtures and challenges its students. The school provides an educational program of the highest…
To enrich life through discovery, education, and the conservation of plants and the natural environment.
CAMH presents extraordinary and thought-provoking arts programming and exhibitions.
For reference, the grantee most central to the portfolio’s shape is Austin Community Foundation Inc and the most unlike its peers is Adams Army. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
18 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. 18 of the 33 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 THE MUSEUM OF FINE ARTS HOUSTON ↗
- Who funds HOUSTON LIVESTOCK SHOW AND RODEO INC ↗
- Who funds Camp Allen Camp & Conference Center ↗
- Who funds VINCARE SERVICES OF AUSTIN FOUNDATION ↗
- Who funds HOLOCAUST MUSEUM HOUSTON ↗
- Who funds TODAYS HARBOR FOR CHILDREN ↗
- Who funds Interfaith Ministries for Greater Houston ↗
- Who funds BIG BROTHERS BIG SISTERS LONE STAR ↗
- Who funds TIRR Foundation ↗
- Who funds The Westview School Inc ↗
- Who funds Christian Community Service Center Inc ↗
- Who funds DEPELCHIN CHILDREN'S CENTER ↗
- Who funds THE BRIARWOOD SCHOOL ↗
- Who funds ANTI-DEFAMATION LEAGUE ↗
- Who funds River Oaks Chamber Orchestra ↗
- Who funds FORMER TEXAS RANGERS FOUNDATION ↗
- Who funds Adams Army ↗
- Who funds AUSTIN COMMUNITY FOUNDATION INC ↗
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: Shell USA Company Foundation · Strake Foundation · Greater Houston Community Foundation · MD Anderson Foundation · Albert & Ethel Herzstein Charitable Foundation · The Brown Foundation Inc · The Ellwood Foundation · The Elkins Foundation · The William Stamps Farish Fund · American Endowment Foundation · Natl Christian Charitable Fdn Inc · American Online Giving Foundation Inc
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 Clark and Charlene Thompson 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 Clark and Charlene Thompson Foundation?
Find your warmest path to Clark and Charlene Thompson 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.