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Plinth

· Private foundation

The Gelb Family Foundation

Its FY2025 filing reports that it accepted unsolicited grant applications.

$244k
Granted FY2025still arriving
27
Grants FY2025still arriving
5
States reached
$50k
Largest
01What you fund
0194% classified

What you funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year — across FY20172025.

Arts & Culture$557kPhilanthropy$398kHealth$169kEducation$168kInternational$45kReligion$35kCommunity Improvement$32kHuman Services$31kOther$0
02FY2025 · 27 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2025

  • Under $10k20 grants · $49k
  • $10k–50k5 grants · $95k
  • $50k–250k2 grants · $100k
$3,000
Median grant
5
States reached
$2.6M
Total assets
Largest grants
RecipientAmount
Cooper Union$50,000
Houston Grand Opera$50,000
Individual grant recipient$35,000
Planned Parenthood Federation of America$30,000
Holocaust Museum Houston$10,000
Compu-Dopt$10,000
St Luke's Foundation$10,000
The Menil Collection$5,000
Doctors Without Borders$5,000
Museum of Fine Arts Houston$5,000
Yivo Institute$5,000
Houston Food Bank$5,000
Rice University$5,000
Breckenridge Outdoor Education Center$3,000
Johnny Mac Tennis Project Inc$2,750
02The need
03

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.

show:

Dollar for dollar, your grants (FY17–25) land where the poverty rate runs at 16%, against an area that typically sits at 11%. 95% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 11%Giving Back Fund: $5k → 14%Yivo Institute: $5k → 17%Holocaust Museum: $20k → 16%Salvation Army Women's Auxiliary: $8k → 9%Holocaust Museum Houston: $10k → 16%Holocaust Museum Houston: $10k → 16%Holocaust Museum Houston: $10k → 16%Holocaust Museum: $10k → 16%Holocaust Museum Houston: $10k → 16%Compu-Dopt: $10k → 16%Compu-Dopt: $10k → 16%Planned Parenthood Federation of America: $30k → 17%Planned Parenthood Federation of America: $25k → 17%Planned Parenthood Federation of America: $25k → 17%Planned Parenthood Federation of America: $10k → 17%Planned Parenthood Federation of America: $10k → 17%Cooper Union: $50k → 17%Cooper Union: $50k → 17%Cooper Union: $50k → 17%Cooper Union: $50k → 17%Cooper Union: $50k → 17%Cooper Union: $50k → 17%Cooper Union: $50k → 17%University of St Thomas: $25k → 16%University of St Thomas: $10k → 16%University of St Thomas: $10k → 16%University of St Thomas: $10k → 16%Baylor College of Medicine: $10k → 16%Houston Grand Opera: $52k → 16%Houston Grand Opera: $50k → 16%Houston Grand Opera: $50k → 16%Houston Grand Opera: $50k → 16%Houston Grand Opera: $50k → 16%Houston Public Media: $35k → 16%Houston Grand Opera: $50k → 16%Houston Public Media: $25k → 16%Houston Grand Opera: $36k → 16%Houston Public Media: $25k → 16%Houston Grand Opera: $26k → 16%Houston Public Media: $25k → 16%Houston Grand Opera: $25k → 16%Houston Public Media: $25k → 16%Salvation Army Women's Auxiliary: $6k → 16%Houston Public Media: $13k → 16%Houston Public Media: $13k → 16%Houston Public Media: $13k → 16%Houston Public Media: $13k → 16%United Way of Greater Houston: $6k → 16%0%20%40%50%more need →
grant to an above-average-need area below average· circle size = grant amount

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.

03Your edge
repeat funding

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.

99%of every dollar goes to organizations you’ve funded before.
$1.7M · 33 repeat orgs$21k to everyone else

And the relationships you keep tend to grow: grantees you re-up on have seen median revenue of +67% since the first grant, against +24% for the ones you funded once.

33 repeat relationships — 23 still active in FY2025, 10 since wound down; 4 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

33
5

Total granted

$1.7M
$9k

Median revenue growth · since first grant

+67%
+24%

Still filing today

67%
40%

New vs renewed · share of each year

In FY2025, 95% of grant dollars renewed an existing relationship; $12k 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
EducationArts & CultureHealthRecreation & SportsPhilanthropyAnimalsOther

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

  • HG
    Houston Grand Opera Association Inc
    9× · 2017–2025 · $389k · revenue +28%
  • PLANNED PARENTHOOD FEDERATION OF AMERICA INC
    9× · 2017–2025 · $111k · revenue +12%
  • UO
    University of St Thomas
    6× · 2017–2022 · $61k · revenue +70%

Funded once

  • United Way of Greater Houston
    one grant, 2022 · $6k · revenue +24%
  • AA
    Alzheimer's Association
    one grant, 2020 · $1k
  • EW
    Emery Weiner School
    one grant, 2021 · $1k

Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.

04Your field

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.

1
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
2
Houston Botanic Garden

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

Environment
3
John P McGovern Museum of Health & Medical Science

The Health Museum is an innovative science center that provides an interactive and entertaining experience for all ages, promotes understanding and appreciation of the human body, mind, and spirit, and inspires a lifelong commitment to…

Arts & Culture
4
Houston Zoo Inc

Mission: Connect communities with animals, inspiring action to save wildlife. Vision: Be a leader in the global movement to save wildlife. (Continued on Schedule O) Houston Zoo, Inc. (HZI) strives to be a zoo that practices exemplary…

Animals
5
Trees for Houston

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

6
The Houston Audubon Society

To advance the conservation of birds and their habitats in the Greater Houston Gulf Coast region by acquiring and maintaining critical habitat as bird sanctuaries, providing education programs and nature experiences, and advocating policy…

Environment
7
Houston Academy of Medicine

The mission of the Houston Academy of Medicine is to support the community service, education, scientific, and charitable programs for physicians, their patients, and the community at large in Harris County.

Education
8
Memorial Hermann Medical Group

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,…

Health
9
The University of TexasTexas a&M Investment Management Company

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…

Education
10
St John's School

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…

11
American Museum of Natural History

The museum's mission statement is: "to discover, interpret, and disseminate - through scientific research and education - knowledge about human cultures, the natural world, and the universe."

Arts & Culture
12
Texas Christian University

Texas christian university is an institution of higher education which includes nine major academic units: liberal arts, science and engineering, business, education, fine arts, communication, honors, nursing and health sciences, and the…

Education

For reference, the grantee most central to the portfolio’s shape is University of St Thomas and the most unlike its peers is Summit County Rescue Group Inc. 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.

← shrinkinggrowing →↓ leaning in → pulling backsteadyPregnancy Support ServicesJewish Community FederationsFood Pantries & AssistanceYouth Sports Booster Organi…United Way FederationsAnimal Rescue and AdoptionYmca Community CentersElementary Literacy TutoringCommunity Arts OrganizationsIndependent K-8 SchoolsCommunity Health CentersFaith-Based Liberal Arts Co…Classical Music Ensembles
the sector your giving your giving is ahead of the sector the sector’s ahead of you· dot size = how much the theme matters to each side
Ordered by the change in your giving — leaning in on top, pulling back at the bottom. The bar between the two dots is how out of step you are with the sector. Hover any row for detail.

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 49 years old; the field is 12. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number26%0%<5yr16%4%5–10yr20%15%10–20yr16%15%20–35yr10%31%35–55yr13%35%55yr+
THE FIELDby orgYOUR MONEYby value26%0%<5yr16%0%5–10yr20%8%10–20yr16%21%20–35yr10%18%35–55yr13%54%55yr+

The field is 26% startups (under 5 years old) — 0% of your grantees by number, and just 0% of your money.

Closures · last 5 years

The orgs you fund almost never close 0.0% lost their exemption, against 15% of the field you don’t fund.

orgs you fund
0.0%0/28
the rest of the field
15%
20,233/136,776

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.

04the grantee network

28 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 20172025, not grant rows in a single year — so this will not match the grant count on the cover. 28 of the 43 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.

0
Load-bearing (≥25% of a budget)
5
Early backer (in before they grew)
28/28
Grantees still filing
25/28
Grew since you first funded

Where your money sits — by cause, then by grantee

Cooper Union — $350,000 · OtherCooper UnionIndividual grant recipient — $185,000 · OtherIndividual grant recipientYivo Institute — $40,400 · OtherThe Houston Food Bank — $30,000 · OtherHolocaust Museum — $30,000 · Other+18 more — $124,300 · Other+18 moreHouston Grand Opera Association Inc — $389,000 · Arts & CultureHouston Grand Opera Association In…Menil Foundation Inc — $45,000 · Arts & CultureMenil Foundation IncTHE MUSEUM OF FINE ARTS HOUSTON — $45,000 · Arts & CultureTHE MUSEUM OF FINE ARTS HOUSTONHOLOCAUST MUSEUM HOUSTON — $40,000 · Arts & CultureHOLOCAUST MUSEUM HOUSTONUniversity of St Thomas — $61,000 · EducationUniversity o…COMP-U-DOPT INC — $50,000 · EducationCOMP-U-DOPT …Baylor College of Medicine — $40,000 · EducationBaylor Colle…William Marsh Rice University — $20,000 · EducationWilliam Mars…GEORGETOWN UNIVERSITY — $9,000 · Education+2 more — $7,000 · EducationPLANNED PARENTHOOD FEDERATION OF AMERICA INC — $111,100 · HealthST LUKE'S FOUNDATION — $10,000 · HealthThe Blue Bird Circle — $5,300 · HealthMEDECINS SANS FRONTIERES USA INC — $45,000 · InternationalBreckenridge Outdoor Education Center — $21,000 · Recreation & SportsCOLORADO FOURTEENERS INITIATIVE — $18,000 · Recreation & SportsTHE GIVING BACK FUND — $9,000 · PhilanthropyBARBARA BUSH HOUSTON LITERACY FOUNDATION — $8,750 · PhilanthropyUnited Way of Greater Houston — $6,000 · Philanthropy
Other$759,700Arts & Culture$519,000Education$187,000Health$126,400International$45,000Recreation & Sports$39,000Philanthropy$23,750

Each org by its size and your share of it — top-left is where you’re load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ your share of their budgetHouston Grand Opera Association Inc — $389,000 over 9y, 0.2% of budgetPLANNED PARENTHOOD FEDERATION OF AMERICA INC — $111,100 over 9y, 0.0% of budgetUniversity of St Thomas — $61,000 over 6y, 0.0% of budgetCOMP-U-DOPT INC — $50,000 over 8y, 0.3% of budgetMEDECINS SANS FRONTIERES USA INC — $45,000 over 9y, 0.0% of budgetMenil Foundation Inc — $45,000 over 9y, 0.0% of budgetTHE MUSEUM OF FINE ARTS HOUSTON — $45,000 over 9y, 0.0% of budgetHOLOCAUST MUSEUM HOUSTON — $40,000 over 4y, 0.2% of budgetBaylor College of Medicine — $40,000 over 7y, 0.0% of budgetThe Houston Food Bank — $30,000 over 6y, 0.0% of budgetBreckenridge Outdoor Education Center — $21,000 over 9y, 0.1% of budgetWilliam Marsh Rice University — $20,000 over 4y, 0.0% of budgetCOLORADO FOURTEENERS INITIATIVE — $18,000 over 9y, 0.2% of budgetSUMMIT COUNTY RESCUE GROUP INC — $13,000 over 8y, 1.4% of budgetThe Awty International School — $12,000 over 6y, 0.0% of budgetST LUKE'S FOUNDATION — $10,000 over 1y, 0.1% of budgetGEORGETOWN UNIVERSITY — $9,000 over 9y, 0.0% of budgetTHE GIVING BACK FUND — $9,000 over 3y, 0.0% of budgetBARBARA BUSH HOUSTON LITERACY FOUNDATION — $8,750 over 7y, 0.1% of budgetJOHNNY MAC TENNIS PROJECT INC — $7,750 over 3y, 0.1% of budgetTHE LADIES VILLAGE IMPROVEMENT SOCIETY OF EAST HAMPTON — $7,000 over 5y, 0.1% of budgetSan Francisco Nativity Academy — $6,000 over 2y, 0.4% of budgetUnited Way of Greater Houston — $6,000 over 1y, 0.0% of budgetThe Blue Bird Circle — $5,300 over 4y, 0.2% of budgetHOUSTON HUMANE SOCIETY — $1,250 over 3y, 0.0% of budgetYoung Men's Christian Association of the Greater Houston Area — $1,000 over 1y, 0.0% of budgetCitizens For Animal Protection Inc — $500 over 1y, 0.0% of budget
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 Houston Grand Opera Association Inc
  • Who funds PLANNED PARENTHOOD FEDERATION OF AMERICA INC
  • Who funds University of St Thomas
  • Who funds COMP-U-DOPT INC
  • Who funds MEDECINS SANS FRONTIERES USA INC
  • Who funds Menil Foundation Inc
  • Who funds THE MUSEUM OF FINE ARTS HOUSTON
  • Who funds HOLOCAUST MUSEUM HOUSTON
  • Who funds Baylor College of Medicine
  • Who funds The Houston Food Bank
  • Who funds Breckenridge Outdoor Education Center
  • Who funds William Marsh Rice University
  • Who funds COLORADO FOURTEENERS INITIATIVE
  • Who funds SUMMIT COUNTY RESCUE GROUP INC
  • Who funds The Awty International School
  • Who funds ST LUKE'S FOUNDATION
  • Who funds GEORGETOWN UNIVERSITY
  • Who funds THE GIVING BACK FUND
  • Who funds BARBARA BUSH HOUSTON LITERACY FOUNDATION
  • Who funds JOHNNY MAC TENNIS PROJECT INC
  • Who funds THE LADIES VILLAGE IMPROVEMENT SOCIETY OF EAST HAMPTON
  • Who funds San Francisco Nativity Academy
  • Who funds United Way of Greater Houston
  • Who funds The Blue Bird Circle
  • Who funds HOUSTON HUMANE SOCIETY
  • Who funds Young Men's Christian Association of the Greater Houston Area
  • Who funds HOLOCAUST REMEMBRANCE ASSOCIATION

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.

Shell USA Company FoundationTX18.6× affinity8 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Shell USA Company Foundation · Greater Houston Community Foundation · Albert & Ethel Herzstein Charitable Foundation · American Endowment Foundation · Vanguard Charitable Endowment Program · Morgan Stanley Global Impact Funding Trust Inc · National Philanthropic Trust · The Blackbaud Giving Fund · Natl Christian Charitable Fdn Inc · Donor Advised Charitable Giving Inc · The Bank of America Charitable Foundation Inc · Paypal Charitable Giving Fund

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 Gelb 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.

2024
202122232425
no gov · 10%0%1%3%5%your share of their income ↑0%6%13%19%25%share of the org’s income from government
    no gov moneyreceives it· size = income
    1get 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 · 0–25%
    typical government reliance, FY2025

    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.

    On method. Every financial figure here is read directly from IRS e-file XML — your own 990/990-PF and the multi-year returns of the 43 grantees we resolved across every year we hold, several hundred filings in all (a different count from the grant rows on the cover, which are one fiscal year)— each linked to its source. Grantee achievements and outcomes are each organization’s own program-service reporting (Form 990, Part III); we read these as association with sustained funding — the foundation is one of several forces — suppress low-confidence name matches rather than guess, and say so where a figure rests on a single grant or filing. Not everything on this page is a filed figure, and the difference matters. Filed is what you reported on your 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. How we build these →

    Generated from your IRS Form 990-PF e-file return for fiscal year 2025, released 2025. Filings run roughly 12–24 months behind; figures are dated accordingly.

    Source object · view filing

    More from the funding graph