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The Postl Family Foundation at a glance

· 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.

$544k
Granted FY2025still arriving
12
Grants FY2025still arriving
1
States reached
$200k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
05Through 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, FY2017 to 2025.

Health$2.2MEducation$598kAnimals$474kPhilanthropy$371kArts & Culture$275kFood & Nutrition$76kPublic Benefit$45kHuman Services$24kOther$0
02FY2025 · 12 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k2 grants · $15k
  • $10k–50k7 grants · $151k
  • $50k–250k3 grants · $379k
$25,000
Median grant
1
States reached
$235k
Total assets
Largest grants
RecipientAmount
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
02The need
03

Does the money reach high-need areas?

Each grant placed by the hardship in its grantee’s ZIP, against the area’s typical level.

show:

Its 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 its grants land in higher-need ZIPs.

area typical 12%COVENANT HOUSE: $500 → 17%HOUSTON AREA WOMEN'S CENTER: $9k → 16%HOUSTON AREA WOMEN'S CENTER: $9k → 16%HOUSTON AREA WOMEN'S CENTER: $3k → 16%TEEN AND FAMILY SERVICES: $500 → 16%REACH UNLIMITED: $5k → 16%REACH UNLIMITED: $5k → 16%REACH UNLIMITED: $5k → 16%REACH UNLIMITED: $500 → 16%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount
How this is measured
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty line in the grantee’s ZIP, averaged from the tracts in that ZIP.
How this is measured
US grants placed by each grantee’s ZIP, which can differ from where services are delivered. Need from public data (U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA), shown as context about the area, never attributed to the funder’s giving.
03Its grantees
repeat funding

Who it funds again

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

96%of every dollar goes to organizations it has funded before.
$4.0M · 28 repeat orgs$159k to everyone else

Grantees it renews have grown median revenue +40% since the first grant, against +29% for those 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

Re-uppedFunded once

Organizations

28
29

Total granted

$4.0M
$125k

Median revenue growth · since first grant

+40%
+29%

Still filing today

86%
55%

New vs renewed · share of each year

In FY2025, 94% of grant dollars renewed an existing relationship; $34k went to new ones.

50%100%’17’18’19’20’21’22’23’24’25
RenewedFirst-time

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

’17’18’19’20’21’22’23’24’25
HealthPhilanthropyArts & CultureEducationHuman ServicesCommunity ImprovementOther
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

  • AH
    American Heart Association Inc
    9× · 2017–2025 · $1.1M · revenue +33%
  • MH
    Memorial Hermann Foundation
    9× · 2017–2025 · $932k · revenue +158%
  • Houston Zoo Inc
    9× · 2017–2025 · $474k · revenue +16%

Funded once

  • AD
    ALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INCgraduated
    one grant, 2017 · $25k · revenue +40%
  • AC
    AMERICAN CANCER SOCIETY INC
    one grant, 2017 · $25k · revenue -83%
  • UO
    UNIVERSITY OF MANITOBA
    one grant, 2020 · $10k
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.

04Its 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
Trees for Houston

Plant, protect and promote trees all over the greater Houston area.

—
2
Houston Botanic Garden

To enrich life through discovery, education, and the conservation of plants and the natural environment.

Environment
3
Houston Local Information Initiative Inc

The Houston Local Information Initiative, Inc. provides public service journalism that reflects the civic needs of the diverse communities comprising Greater Houston.

Arts & Culture
4
Houston Museum of Natural Science

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…

Arts & Culture
5
Houston Independent School District Foundation

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…

—
6
Breakthrough Houston

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.

Education
7
Collaborative for Children

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.

Human Services
8
American Civil Liberties Union of Texas Inc

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.

—
9
Harris County Medical Society

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…

—
10
Central Houston Inc

See schedule ocentral houston champions a thriving downtown by connecting influential leaders through initiatives that advance the future of business and community for all.

—
11
The Women's Resource of Greater Houston

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…

Philanthropy
12
Houston Christian Foundation dba National Christian Foundation Houston

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.

—
How this is measured
The grantee most central to the portfolio’s shape is Greater Houston Community Foundation; 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.
04the grantee network

41 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. 41 of the 59 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.

0
Load-bearing (≥25% of a budget)
7
Early backer (in before they grew)
41/41
Grantees still filing
32/41
Grew since first funded

Where the money sits, by cause and then by grantee

American Heart Association Inc: $1,099,800 · HealthAmerican Heart Association IncMemorial Hermann Foundation: $931,500 · HealthMemorial Hermann Foundation+5 more: $106,500 · HealthUnited Way of Greater Houston: $370,000 · PhilanthropyUnited Way of G…BARBARA BUSH HOUSTON LITERACY FOUNDATION: $115,800 · PhilanthropyBARBARA BUSH HO…THE HOLDSWORTH CENTER: $77,200 · PhilanthropyTHE HOLDSWORTH …+2 more: $6,000 · PhilanthropyHouston Zoo Inc: $473,790 · AnimalsHouston Zoo I…Good Reason Houston Inc: $271,850 · EducationGood Reas…William Marsh Rice University: $71,000 · EducationWilliam M…+2 more: $5,500 · EducationTHE FOUNDATION FOR JONES HALL: $100,000 · OtherTHE FOUNDA…The Houston Food Bank: $75,500 · OtherThe Housto…BARBARA BUSH FOUNDATION: $33,750 · OtherBARBARA BU…Individual grant recipient: $25,250 · OtherIndividual…Individual grant recipient: $20,000 · OtherHouston Area Women's Center: $22,000 · OtherHouston Ar…REACH UNLIMITED INC: $15,500 · Other+30 more: $88,750 · Other+30 morePERFORMING ARTS HOUSTON: $153,500 · Arts & CultureASIA SOCIETY TEXAS CENTER: $5,500 · Arts & Culture+2 more: $5,500 · Arts & CultureTHE UNIVERSITY OF MANITOBA FOUNDATION USA INC: $41,000 · International
Health$2,137,800Philanthropy$569,000Animals$473,790Education$348,350Other$380,750Arts & Culture$164,500International$41,000

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 budgetAmerican Heart Association Inc: $1,099,800 over 9y, 0.0% of budgetMemorial Hermann Foundation: $931,500 over 9y, 0.5% of budgetHouston Zoo Inc: $473,790 over 9y, 0.1% of budgetUnited Way of Greater Houston: $370,000 over 9y, 0.1% of budgetGood Reason Houston Inc: $271,850 over 5y, 0.6% of budgetPERFORMING ARTS HOUSTON: $153,500 over 9y, 1.0% of budgetBARBARA BUSH HOUSTON LITERACY FOUNDATION: $115,800 over 8y, 0.6% of budgetTHE FOUNDATION FOR JONES HALL: $100,000 over 3y, 0.6% of budgetTHE HOLDSWORTH CENTER: $77,200 over 4y, 0.1% of budgetThe Houston Food Bank: $75,500 over 6y, 0.0% of budgetWilliam Marsh Rice University: $71,000 over 8y, 0.0% of budgetTHE UNIVERSITY OF MANITOBA FOUNDATION USA INC: $41,000 over 2y, 8.6% of budgetPLANNED PARENTHOOD FEDERATION OF AMERICA INC: $30,000 over 3y, 0.0% of budgetALZHEIMER'S DISEASE & RELATED DISORDERS ASSOCIATION INC: $25,000 over 1y, 0.0% of budgetAMERICAN CANCER SOCIETY INC: $25,000 over 1y, 0.0% of budgetPlanned Parenthood Gulf Coast Inc: $25,000 over 2y, 0.1% of budgetHouston Area Women's Center: $22,000 over 4y, 0.1% of budgetREACH UNLIMITED INC: $15,500 over 4y, 0.0% of budgetCHILDREN'S DEFENSE FUND: $10,000 over 1y, 0.1% of budgetFit Houston Inc: $10,000 over 1y, 2.7% of budgetNATIONAL CENTER FOR LEARNING DISABILITIES INC: $10,000 over 2y, 0.1% of budgetASIA SOCIETY TEXAS CENTER: $5,500 over 2y, 0.2% of budgetOFICINA LEGAL DEL PUEBLO UNIDO INC: $5,250 over 2y, 0.1% of budgetCouncil for a Strong America: $5,000 over 1y, 0.1% of budgetMen of Distinction of Greater Houston: $5,000 over 2y, 0.7% of budgetTEXAS TRIBUNE INC: $5,000 over 1y, 0.0% of budgetHouston Grand Opera Association Inc: $5,000 over 1y, 0.0% of budgetHOUSTON AREA URBAN LEAGUE INC: $2,500 over 3y, 0.0% of budgetMARCH OF DIMES INC: $1,500 over 2y, 0.0% of budgetTanglewood Foundation: $1,500 over 3y, 1.7% of budgetChildren At Risk: $1,000 over 1y, 0.0% of budgetGREATER HOUSTON COMMUNITY FOUNDATION: $1,000 over 1y, 0.0% of budgetCOVENANT HOUSE: $500 over 1y, 0.0% of budgetTexas Defender Service: $500 over 1y, 0.1% of budgetTeach for America Inc: $500 over 1y, 0.0% of budgetTeen & Family Services: $500 over 1y, 0.0% of budgetAMERICAN LEADERSHIP FORUM NATIONAL: $500 over 1y, 0.8% of budgetAmerican Leadership Forum Houston Gulf Coast Chapter: $500 over 1y, 0.1% of budgetThe Rotary Club of Houston Foundation Inc: $500 over 1y, 0.4% of budgetCHILDREN'S MUSEUM INC: $500 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.

Greater Houston Commu…Houston Endowment IncMechia FoundationThe Brown Foundation …Shell USA Company Fou…The Methodist HospitalMarek Family Foundati…Albert & Ethel Herzst…The Alkek and William…The Powell FoundationStrake FoundationThe Zions Bancorporat…
Greater Houston Community FoundationTX29.3× affinity14 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

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

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.

How much its grantees rely on government

Each dot is one organization The Postl Family Foundation funds: left to right is the share of its income from government, bottom to top the share from The Postl Family Foundation. Bigger dots raise more.

2024
’20’21’22’23’24’25
no gov · 00%1%3%6%10%funder's share of their income ↑0%8%15%22%30%share of the org’s income from government →
    no gov moneyreceives it· size = income
    0get no government money at all
    7report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–30%
    typical government reliance, FY20–25
    How this is measured
    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 a grant caused the public funding. Coverage is precision-first, a floor rather than 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 to 24 months.
    05Through Plinth

    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.

    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 59 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 2025, released 2025. Filings run roughly 12 to 24 months behind; figures are dated accordingly.

    Source object · view filing

    Play a game based on Postl Family’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