· Private foundation
The Postl Family 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 $10k2 grants · $15k
- $10k–50k7 grants · $151k
- $50k–250k3 grants · $379k
| Recipient | Amount |
|---|---|
| AMERICAN HEART ASSOCIATION | $200,000 |
| MEMORIAL HERMANN FOUNDATION | $121,000 |
| GOOD REASON HOUSTON | $57,500 |
| BARBARA BUSH FOUNDATION | $33,750 |
| UNITED WAY OF GREATER HOUSTON | $25,000 |
| FOUNDATION FOR JONES HALL | $25,000 |
| HOLDSWORTH CENTER | $23,000 |
| HOUSTON ZOO | $22,950 |
| PERFORMING ARTS HOUSTON | $11,000 |
| RICE UNIVERSITY | $10,000 |
| Individual grant recipient | $9,600 |
| REACH UNLIMITED | $5,000 |
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 (FY17–25, $36k) 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.
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 +40% since the first grant, against +26% for the ones you funded once.
28 repeat relationships — 11 still active in FY2025, 17 since wound down; 1 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, 94% of grant dollars renewed an existing relationship; $34k 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
- AHAmerican Heart Association Inc9× · 2017–2025 · $1.1M · revenue +33%
- MHMemorial Hermann Foundation9× · 2017–2025 · $932k · revenue +158%
Houston Zoo Inc9× · 2017–2025 · $474k · revenue +16%
Funded once
- ADALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INCgraduatedone grant, 2017 · $25k · revenue +40%
- ACAMERICAN CANCER SOCIETY INCone grant, 2017 · $25k · revenue -83%
- UOUNIVERSITY OF MANITOBAone grant, 2020 · $10k
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.
Plant, protect and promote trees all over the greater Houston area.
To enrich life through discovery, education, and the conservation of plants and the natural environment.
The Houston Local Information Initiative, Inc. provides public service journalism that reflects the civic needs of the diverse communities comprising Greater Houston.
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…
The HISD Foundation is dedicated to mobilizing the local community to support innovative priorities in HISD to improve outcomes for all students in the district. Our mission is to fund projects and programs of merit that fall outside of…
The mission of Breakthrough Houston (BTH) is to work with highly motivated students to achieve post-secondary success and empower aspiring leaders to become the next generation of educational advocates.
The mission of Collaborative for Children is to meaningfully improve the quality of early childhood education and care for Greater Houston's children through those most influential in their lives.
The ACLU of Texas works with communities, at the State Capitol, and in the courts to protect and advance civil rights and civil liberties for every Texan, no exceptions.
Our mission is to be the leading advocate for our member physicians, their patients and our community, in promoting the highest standards of ethical medical practice, access to quality medical care, medical education, research, and…
See schedule ocentral houston champions a thriving downtown by connecting influential leaders through initiatives that advance the future of business and community for all.
See Schedule OThe Women's Resource of Greater Houston helps women and girls make choices toward becoming independent, productive, and financially stable. We fulfill our mission by recruiting volunteer instructors to deliver our programs in…
As the Houston affiliate of the National Christian Foundation (NCF), our mission is to serve and encourage givers to grow as faithful stewards who give wisely to further the Gospel of Jesus Christ.
For reference, the grantee most central to the portfolio’s shape is Greater Houston Community Foundation and the most unlike its peers is Tanglewood Foundation. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 42 years old; the field is 11. You back the established end — and your money leans older still.
The field is 29% 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 17% 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.
41 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. 41 of the 59 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 American Heart Association Inc ↗
- Who funds Memorial Hermann Foundation ↗
- Who funds Houston Zoo Inc ↗
- Who funds United Way of Greater Houston ↗
- Who funds Good Reason Houston Inc ↗
- Who funds PERFORMING ARTS HOUSTON ↗
- Who funds BARBARA BUSH HOUSTON LITERACY FOUNDATION ↗
- Who funds THE FOUNDATION FOR JONES HALL ↗
- Who funds THE HOLDSWORTH CENTER ↗
- Who funds The Houston Food Bank ↗
- Who funds William Marsh Rice University ↗
- Who funds THE UNIVERSITY OF MANITOBA FOUNDATION USA INC ↗
- Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC ↗
- Who funds ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC ↗
- Who funds Planned Parenthood Gulf Coast Inc ↗
- Who funds AMERICAN CANCER SOCIETY INC ↗
- Who funds Houston Area Women's Center ↗
- Who funds REACH UNLIMITED INC ↗
- Who funds CHILDREN'S DEFENSE FUND ↗
- Who funds Fit Houston Inc ↗
- Who funds NATIONAL CENTER FOR LEARNING DISABILITIES INC ↗
- Who funds ASIA SOCIETY TEXAS CENTER ↗
- Who funds OFICINA LEGAL DEL PUEBLO UNIDO INC ↗
- Who funds TEXAS TRIBUNE INC ↗
- Who funds Men of Distinction of Greater Houston ↗
- Who funds Council for a Strong America ↗
- Who funds Houston Grand Opera Association Inc ↗
- Who funds HOUSTON AREA URBAN LEAGUE INC ↗
- Who funds Tanglewood Foundation ↗
- Who funds MARCH OF DIMES INC ↗
- Who funds GREATER HOUSTON COMMUNITY FOUNDATION ↗
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 · Houston Endowment Inc · Mechia Foundation · The Brown Foundation Inc · Shell USA Company Foundation · The Methodist Hospital · Marek Family Foundation · Albert & Ethel Herzstein Charitable Foundation · The Alkek and Williams Foundation · The Powell Foundation · Strake Foundation · The Zions Bancorporation 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 The Postl Family 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 The Postl Family Foundation?
Find your warmest path to The Postl Family 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.