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Plinth

· Private foundation

The Williamson Foundation

Its FY2024 filing reports that it funds preselected organizations and did not take unsolicited requests; check the foundation's own site before ruling it out.

$97k
Granted FY2024still arriving
19
Grants FY2024still arriving
6
States reached
$34k
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 FY20172024.

Arts & Culture$206kEnvironment$77kRecreation & Sports$32kHousing & Shelter$31kPhilanthropy$27kHuman Services$22kReligion$14kInternational$12kOther$0
02FY2024 · 19 grants

Where the money goes

Your grants by size, and where they go.

By grant size · FY2024

  • Under $10k16 grants · $33k
  • $10k–50k3 grants · $64k
$2,066
Median grant
6
States reached
$2.9M
Total assets
Largest grants
RecipientAmount
MINNESOTA ENVIRONMENTAL PARTNERSHIP$34,150
RANCHO MIRAGE WRITERS FESTIVAL$20,000
TEXAS PUBLIC RADIO$10,325
BRISCOE WESTERN ART MUSEUM$5,149
MCCALLUM THEATRE$5,000
KLRN$3,000
SAN ANTONIO CONSERVATION SOCIETY$2,500
SAN ANTONIO BOTANCIAL GARDEN$2,500
MCNAY ART MUSEUM$2,500
FREEDOM FROM RELIGION FOUNDATION$2,066
OPERA SAN ANTONIO$2,000
Individual grant recipient$2,000
THE WITTE MUSEUM$1,200
HEMISFAIR CONSERVANCY$1,031
SAN PEDRO PLAYHOUSE$1,000
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:

Your human-services grants (FY17–21, $16k) land where the poverty rate runs at 15%, against an area that typically sits at 11%. 100% of those dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.

area typical 11%YOUTHLINK: $1k → 11%YOUTHLINK: $1k → 11%THE CHILDRENS SHELTER: $10k → 16%THE CHILDREN'S SHELTER: $2k → 16%THE CHILDREN'S SHELTER: $2k → 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.

Which US states your grants reach

MN
IL
WI
NY
CA
VA
KS
TN
DC
TX

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.

92%of every dollar goes to organizations you’ve funded before.
$392k · 27 repeat orgs$33k to everyone else

27 repeat relationships — 17 still active in FY2024, 10 since wound down; 2 grantees were first funded in FY2024 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

27
16

Total granted

$392k
$32k

Median revenue growth · since first grant

+19%
+55%

Still filing today

78%
44%

New vs renewed · share of each year

In FY2024, 99% of grant dollars renewed an existing relationship; $1k went to new ones.

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

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

’17’18’19’20’21’22’23’24
Arts & CultureEnvironmentRecreation & SportsHuman ServicesEducationPhilanthropyOther

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

  • ME
    MINNESOTA ENVIRONMENTAL PARTNERSHIP
    2× · 2022–2024 · $55k · revenue +142%
  • TP
    TEXAS PUBLIC RADIO
    7× · 2017–2024 · $48k · revenue +46%
  • RM
    RANCHO MIRAGE WRITERS FESTIVAL
    2× · 2023–2024 · $40k · revenue +17%

Funded once

  • SA
    SAN ANTONIO PARKS FOUNDATIONgraduated
    one grant, 2021 · $6k · revenue +99%
  • SA
    SAN ANTONIO BOTANICAL GARDEN
    one grant, 2017 · $5k
  • CF
    CENTER FOR COMMUNITY EMPOWERMENT SYSTEMS
    one grant, 2017 · $4k

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
San Anto Cultural Arts

To foster human and community development through community-based arts.

Arts & Culture
2
Kimbell Art Foundation
Arts & Culture
3
Site Santa Fe

Guided by artists, rooted in new mexico, site santa fe celebrates contemporary creative expression.

Arts & Culture
4
Artpace Inc (Audit)

Artpace san antonio is a nonprofit residency program which supports texas, national, and international artists in the creation of new art. see schedule o for continuation.

Arts & Culture
5
Luminaria

Luminaria delivers a contemporary arts program that includes a festival of international stature; supports downtown and the urban core; and brings attention to San Antonios multi-arts culture.

Arts & Culture
6
San Angelo Civic Theater Inc

The mission of san angelo civic theatre is to culturally enrich, educate, and entertain through the art of theatre and theatrical performance and to encourage community participation in all aspects thereof.

7
San Angelo Museum of Fine Arts

The mission of the San Angelo Museum of Fine Arts shall be to establish and maintain a museum in order to house and exhibit a permanent collection of art as well as to provide space for traveling exhibitions, for the purpose of the…

Arts & Culture
8
Symphony Society of San Antonio

The san antonio symphony's mission is to delight, engage, and inspire the entire community through excellent performance, education, and outreach

9
Contemporary Art for San Antonio

Contemporary at blue star inspires the creative genius in us all by nurturing artists through innovative contemporary art.

Arts & Culture
10
Bexar County Performing Arts Center Fdn Tobin Center for the Performing Art

The mission of the tobin center, a local non-profit arts organization, is to provide a world-class venue that promotes a diverse range of cultural, educational, and artistic experiences that improve the quality of life in san antonio.since…

Education
11
The Tobin Theatre Arts Fund
Arts & Culture
12
Fiesta San Antonio CommissionInc

To plan,promote,and preserve Fiesta San Antonio through the support of non-profit, civic and patriotic participating member organization in presenting a safe educational, annual celebration of diverse heritage,culture and spirit of the San…

For reference, the grantee most central to the portfolio’s shape is San Pedro Playhouse and the most unlike its peers is Youthlink. 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 backsteadyEnvironmental Advocacy Orga…Fallen First Responder Supp…Youth Sports Booster Organi…Land Conservation Organizat…Classical Music EnsemblesCancer Support OrganizationsGovernment Accountability R…Professional Ballet Compani…Community Arts OrganizationsChild and Family ServicesHomeless Services & Shelter
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 36 years old; the field is 12. You back the established end — and your money leans older still.

THE FIELDby orgYOUR GRANTEESby number26%0%<5yr16%0%5–10yr20%10%10–20yr16%35%20–35yr10%31%35–55yr13%24%55yr+
THE FIELDby orgYOUR MONEYby value26%0%<5yr16%0%5–10yr20%18%10–20yr16%30%20–35yr10%34%35–55yr13%18%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%0/31
the rest of the field
15%
20,233/136,773

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

31 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. 31 of the 47 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)
7
Early backer (in before they grew)
31/31
Grantees still filing
18/31
Grew since you first funded

Where your money sits — by cause, then by grantee

SAN ANTONIO METROPOLITAN MINISTRIES INC — $31,000 · OtherSAN ANTONIO METROPOLITAN MINISTRIES INCSAN ANTONIO CONSERVATION SOCIETY — $20,250 · OtherSAN ANTONIO CONSERVATION SOCIETYBRISCOE WESTERN ART MUSEUM — $15,149 · OtherBRISCOE WESTERN ART MUSEUMSAN ANTONIO BOTANCIAL GARDEN — $13,500 · OtherSAN ANTONIO BOTANCIAL GARDENMCCALLUM THEATRE — $10,000 · OtherMCCALLUM THEATREAMATE HOUSE — $8,000 · OtherIndividual grant recipient — $7,035 · OtherSAN ANTONIO PARKS FOUNDATION — $6,000 · OtherFREEDOM FROM RELIGION FOUNDATION INC — $14,066 · OtherFREEDOM FROM RELIGION FOUNDATION INCKIVA MICROFUNDS — $12,000 · OtherKIVA MICROFUNDSNETWORK FOR GOOD — $6,000 · Other+13 more — $21,827 · Other+13 moreTEXAS PUBLIC RADIO — $48,175 · Arts & CultureTEXAS PUBLIC RADIOMCNAY ART MUSEUM — $13,000 · Arts & CultureMCNAY ART MUSEUMALAMO PUBLIC TELECOMMUNICATIONS COUNCIL DOING BUSINESS AS KLRN — $12,000 · Arts & CultureALAMO PUBLIC TELECOMMUNICATIO…Witte Museum — $9,600 · Arts & CultureWitte MuseumTHE OPERA SAN ANTONIO DBA OPERA SAN AN — $8,000 · Arts & CultureTHE OPERA SAN ANTONIO DBA OPE…SAN ANTONIO MUSEUM OF ART — $6,000 · Arts & CultureThe Texas State Historical Association — $5,000 · Arts & CultureClassic Theatre of San Antonio — $5,000 · Arts & CultureGUADALUPE CULTURAL ARTS CENTER — $4,000 · Arts & Culture+5 more — $5,020 · Arts & CultureMINNESOTA ENVIRONMENTAL PARTNERSHIP — $54,650 · EnvironmentMINNESOTA ENVI…+1 more — $1,500 · EnvironmentRANCHO MIRAGE WRITERS FESTIVAL — $40,000 · EducationRANCHO MIRA…CENTER FOR COMMUNITY EMPOWERMENT SYSTEMS — $3,500 · EducationCENTER FOR …Lamorinda Soccer Club — $19,750 · Recreation & SportsHEMISFAIR CONSERVANCY — $6,531 · Recreation & SportsMICROGRANTS — $20,000 · PhilanthropyTHE CHILDREN'S SHELTER — $14,000 · Human ServicesYOUTHLINK — $2,000 · Human Services
Other$164,827Arts & Culture$115,795Environment$56,150Education$43,500Recreation & Sports$26,281Philanthropy$20,000Human Services$16,000

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 budgetMINNESOTA ENVIRONMENTAL PARTNERSHIP — $54,650 over 2y, 9.4% of budgetTEXAS PUBLIC RADIO — $48,175 over 7y, 0.2% of budgetRANCHO MIRAGE WRITERS FESTIVAL — $40,000 over 2y, 0.7% of budgetSAN ANTONIO METROPOLITAN MINISTRIES INC — $31,000 over 4y, 0.2% of budgetSAN ANTONIO CONSERVATION SOCIETY — $20,250 over 7y, 1.7% of budgetMICROGRANTS — $20,000 over 2y, 0.8% of budgetLamorinda Soccer Club — $19,750 over 2y, 1.0% of budgetFREEDOM FROM RELIGION FOUNDATION INC — $14,066 over 4y, 0.1% of budgetTHE CHILDREN'S SHELTER — $14,000 over 3y, 0.1% of budgetMCNAY ART MUSEUM — $13,000 over 6y, 0.0% of budgetALAMO PUBLIC TELECOMMUNICATIONS COUNCIL DOING BUSINESS AS KLRN — $12,000 over 6y, 0.1% of budgetKIVA MICROFUNDS — $12,000 over 2y, 0.1% of budgetWitte Museum — $9,600 over 6y, 0.0% of budgetTHE OPERA SAN ANTONIO DBA OPERA SAN AN — $8,000 over 6y, 0.2% of budgetHEMISFAIR CONSERVANCY — $6,531 over 5y, 0.1% of budgetNETWORK FOR GOOD — $6,000 over 1y, 0.0% of budgetSAN ANTONIO MUSEUM OF ART — $6,000 over 5y, 0.0% of budgetThe Texas State Historical Association — $5,000 over 5y, 0.1% of budgetClassic Theatre of San Antonio — $5,000 over 4y, 0.6% of budgetGUADALUPE CULTURAL ARTS CENTER — $4,000 over 3y, 0.1% of budgetYOUTHLINK — $2,000 over 2y, 0.0% of budgetSAY SI — $2,000 over 2y, 0.1% of budgetPARKS AND WILDLIFE FOUNDATION OF TEXAS — $1,500 over 2y, 0.0% of budgetFRACTURED ATLAS INC — $1,075 over 1y, 0.0% of budgetSAN PEDRO PLAYHOUSE — $1,000 over 1y, 0.1% of budgetBALLET SAN ANTONIO — $945 over 1y, 0.1% of budgetST JUDE CHILDREN'S RESEARCH HOSPITAL INC — $200 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 MINNESOTA ENVIRONMENTAL PARTNERSHIP
  • Who funds TEXAS PUBLIC RADIO
  • Who funds RANCHO MIRAGE WRITERS FESTIVAL
  • Who funds SAN ANTONIO METROPOLITAN MINISTRIES INC
  • Who funds SAN ANTONIO CONSERVATION SOCIETY
  • Who funds MICROGRANTS
  • Who funds Lamorinda Soccer Club
  • Who funds FREEDOM FROM RELIGION FOUNDATION INC
  • Who funds THE CHILDREN'S SHELTER
  • Who funds MCNAY ART MUSEUM
  • Who funds ALAMO PUBLIC TELECOMMUNICATIONS COUNCIL DOING BUSINESS AS KLRN
  • Who funds KIVA MICROFUNDS
  • Who funds Witte Museum
  • Who funds THE OPERA SAN ANTONIO DBA OPERA SAN AN
  • Who funds HEMISFAIR CONSERVANCY
  • Who funds NETWORK FOR GOOD
  • Who funds SAN ANTONIO PARKS FOUNDATION
  • Who funds SAN ANTONIO MUSEUM OF ART
  • Who funds The Texas State Historical Association
  • Who funds Classic Theatre of San Antonio
  • Who funds GUADALUPE CULTURAL ARTS CENTER
  • Who funds CENTER FOR COMMUNITY EMPOWERMENT SYSTEMS
  • Who funds YOUTHLINK
  • Who funds SAY SI
  • Who funds PARKS AND WILDLIFE FOUNDATION OF TEXAS
  • Who funds FRACTURED ATLAS INC
  • Who funds MAGIK CHILDRENS THEATRE OF SAN ANTONIO DBA THE MAGIK THEATRE

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.

Elizabeth Huth Coates Charitable Foundation of 1992TX30.4× affinity12 shared granteesties to 11 of 11Hover any node to trace its alignments.Compare side by side →

Open a dossier: Elizabeth Huth Coates Charitable Foundation of 1992 · San Antonio Area Foundation · Russell Hill Rogers Fund for the Arts · John R & Greli N Less Charitable Trust #FE324 · Marcia & Otto Koehler Foundation · Pryor Myra Stafford Char Tr F0030100 · Faye L & William L Cowden Charitable Foundation · Nancy Smith Hurd Foundation · Muriel F Siebert Foundation Inc · The Ewing Halsell Foundation · Jack and Doris Smothers and Bud Smothers Memorial Foundation · Charitable Foundation Frost F0359600

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 Williamson 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 · 00%1%3%6%10%your share of their income ↑0%10%20%30%40%share of the org’s income from government
    no gov moneyreceives it· size = income
    0get no government money at all
    11report government grants on their 990 we could not trace to a source (not plotted)
    0rely on government for over half their income
    ⤢ axis zoomed · 0–40%
    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 47 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 2024, released 2024. Filings run roughly 12–24 months behind; figures are dated accordingly.

    Source object · view filing

    More from the funding graph