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The Williamson Foundation at a glance

· Private foundation

The Williamson 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.

$75k
Granted FY2025still arriving
20
Grants FY2025still arriving
5
States reached
$20k
Largest
01What it fundsRead
02The needRead
03Its granteesRead
04Its fieldRead
01What it funds
0194% classified

What it funded, over time

Every grant placed by its stated purpose and the recipient’s mission, by year, FY2017 to 2024.

Arts & Culture$206kEnvironment$77kRecreation & Sports$32kHousing & Shelter$31kPhilanthropy$27kHuman Services$22kReligion$14kInternational$12kOther$0
02FY2025 · 20 grants

Where the money goes

Grants by size, and the largest recipients.

By grant size · FY2025

  • Under $10k18 grants · $45k
  • $10k–50k2 grants · $30k
$2,580
Median grant
5
States reached
$2.9M
Total assets
Largest grants
RecipientAmount
RANCHO MIRAGE WRITERS FESTIVAL$20,000
TEXAS PUBLIC RADIO$10,325
FREEDOM FROM RELIGION FOUNDATION$6,198
BRISCOE WESTERN ART MUSEUM$5,149
MCCALLUM THEATRE$5,000
KLRN$4,000
OPERA SAN ANTONIO$3,090
Individual grant recipient$3,075
PROJECT MEND$2,630
SAN ANTONIO CONSERVATION SOCIETY FOUNDATION$2,580
SAN ANTONIO BOTANCIAL GARDEN$2,576
TEXAS TRIBUNE$2,045
MCNAY ART MUSEUM$1,500
THE WITTE MUSEUM$1,200
WIKIMEDIA FOUNDATION$1,040
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 (FY17–21, $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 its 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
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.

Which US states its grants reach

MN
IL
WI
NY
CA
VA
KS
TN
DC
TX
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.

91%of every dollar goes to organizations it has funded before.
$457k · 27 repeat orgs$43k to everyone else

27 repeat relationships: 14 still active in FY2025, 13 since wound down; 6 grantees were first funded in FY2025 (too recent to call).

How the two cohorts compare

Re-uppedFunded once

Organizations

27
18

Total granted

$457k
$33k

Median revenue growth · since first grant

+19%
+55%

Still filing today

78%
44%

New vs renewed · share of each year

In FY2025, 87% of grant dollars renewed an existing relationship; $10k 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
Arts & CultureEducationHuman ServicesEnvironmentRecreation & SportsHealthOther
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

  • RM
    RANCHO MIRAGE WRITERS FESTIVAL
    3× · 2023–2025 · $60k · revenue +17%
  • TP
    TEXAS PUBLIC RADIO
    8× · 2017–2025 · $59k · revenue +46%
  • ME
    MINNESOTA ENVIRONMENTAL PARTNERSHIP
    2× · 2022–2024 · $55k · revenue +142%

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
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
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
2
Kimbell Art Foundation
Arts & Culture
3
San Anto Cultural Arts

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

Arts & Culture
4
Main Plaza Conservancy

Main plaza conservancy, a 501(c)3 nonprofit organization, is dedicated to providing san antonio and its visitors with the cultural and historical "heart of the city; bringing awareness of family and community combined with history and…

Housing & Shelter
5
The Santa Fe Opera

To further the operatic art form by presenting ensemble performances of the highest quality in a varied repertoire of new as well as rarely performed and standard works, to ensure excellence of opera's future through its apprentice…

Arts & Culture
6
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
7
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.

—
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
Site Santa Fe

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

Arts & Culture
10
San Antonio Report

Publishing a local online news source. We believe a well informed and connected community is essential to making San Antonio a better place to live, work and play.

Arts & Culture
11
Alamo Trust Inc

The organization is to be operated exclusively to preserve and restore the alamo complex and to educate and inspire visitors on the history of all those who lived, fought, and died there.

Arts & Culture
12
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
How this is measured
The grantee most central to the portfolio’s shape is San Antonio Conservation Society Foundation; 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.
04the grantee network

35 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. 35 of the 53 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)
8
Early backer (in before they grew)
35/35
Grantees still filing
20/35
Grew since first funded

Where the money sits, by cause and then by grantee

SAN ANTONIO METROPOLITAN MINISTRIES INC: $31,000 · OtherSAN ANTONIO METROPOLITAN MINISTRIES INCBRISCOE WESTERN ART MUSEUM: $20,298 · OtherBRISCOE WESTERN ART MUSEUMSAN ANTONIO CONSERVATION SOCIETY: $20,250 · OtherSAN ANTONIO CONSERVATION SOCIETYSAN ANTONIO BOTANCIAL GARDEN: $16,076 · OtherSAN ANTONIO BOTANCIAL GARDENMCCALLUM THEATRE: $15,000 · OtherMCCALLUM THEATREIndividual grant recipient: $10,110 · OtherIndividual grant recipientAMATE HOUSE: $8,000 · OtherTHE CHILDREN'S SHELTER: $14,000 · OtherTHE CHILDREN'S SHELTERKIVA MICROFUNDS: $12,000 · OtherKIVA MICROFUNDS+19 more: $39,987 · Other+19 moreTEXAS PUBLIC RADIO: $58,500 · Arts & CultureTEXAS PUBLIC RADIOALAMO PUBLIC TELECOMMUNICATIONS COUNCIL DOING BUSINESS AS KLRN: $16,000 · Arts & CultureALAMO PUBLIC TELECOMMUNICATION…MCNAY ART MUSEUM: $14,500 · Arts & CultureMCNAY ART MUSEUMTHE OPERA SAN ANTONIO DBA OPERA SAN AN: $11,090 · Arts & CultureTHE OPERA SAN ANTONIO DBA OPER…Witte Museum: $10,800 · Arts & CultureWitte MuseumSAN ANTONIO MUSEUM OF ART: $7,000 · Arts & CultureThe Texas State Historical Association: $6,000 · Arts & CultureClassic Theatre of San Antonio: $5,000 · Arts & Culture+7 more: $11,600 · Arts & Culture+7 moreRANCHO MIRAGE WRITERS FESTIVAL: $60,000 · EducationRANCHO MIRAGE …CENTER FOR COMMUNITY EMPOWERMENT SYSTEMS: $3,500 · Education+2 more: $3,085 · EducationMINNESOTA ENVIRONMENTAL PARTNERSHIP: $54,650 · EnvironmentMINNESOTA EN…+1 more: $1,500 · EnvironmentLamorinda Soccer Club: $19,750 · Recreation & SportsHEMISFAIR CONSERVANCY: $7,568 · Recreation & SportsFREEDOM FROM RELIGION FOUNDATION INC: $20,264 · ReligionMICROGRANTS: $20,000 · Philanthropy
Other$186,721Arts & Culture$140,490Education$66,585Environment$56,150Recreation & Sports$27,318Religion$20,264Philanthropy$20,000

Each grantee by its size and the funder’s share of it; top left is load-bearing

25%50%75%100%$1.0M$10M$100Mgrantee revenue →↑ funder's share of their budgetRANCHO MIRAGE WRITERS FESTIVAL: $60,000 over 3y, 0.7% of budgetTEXAS PUBLIC RADIO: $58,500 over 8y, 0.2% of budgetMINNESOTA ENVIRONMENTAL PARTNERSHIP: $54,650 over 2y, 9.4% of budgetSAN ANTONIO METROPOLITAN MINISTRIES INC: $31,000 over 4y, 0.2% of budgetFREEDOM FROM RELIGION FOUNDATION INC: $20,264 over 5y, 0.1% 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 budgetALAMO PUBLIC TELECOMMUNICATIONS COUNCIL DOING BUSINESS AS KLRN: $16,000 over 7y, 0.1% of budgetMCNAY ART MUSEUM: $14,500 over 7y, 0.0% of budgetTHE CHILDREN'S SHELTER: $14,000 over 3y, 0.1% of budgetKIVA MICROFUNDS: $12,000 over 2y, 0.1% of budgetTHE OPERA SAN ANTONIO DBA OPERA SAN AN: $11,090 over 7y, 0.2% of budgetWitte Museum: $10,800 over 7y, 0.0% of budgetHEMISFAIR CONSERVANCY: $7,568 over 6y, 0.1% of budgetSAN ANTONIO MUSEUM OF ART: $7,000 over 6y, 0.0% of budgetThe Texas State Historical Association: $6,000 over 6y, 0.1% of budgetNETWORK FOR GOOD: $6,000 over 1y, 0.0% of budgetClassic Theatre of San Antonio: $5,000 over 4y, 0.6% of budgetGUADALUPE CULTURAL ARTS CENTER: $4,000 over 3y, 0.1% of budgetProject MEND: $2,630 over 1y, 0.1% of budgetSAN ANTONIO CONSERVATION SOCIETY FOUNDATION: $2,580 over 1y, 1.9% of budgetSAY SI: $2,000 over 2y, 0.1% of budgetYOUTHLINK: $2,000 over 2y, 0.0% of budgetPARKS AND WILDLIFE FOUNDATION OF TEXAS: $1,500 over 2y, 0.0% of budgetFRACTURED ATLAS INC: $1,075 over 1y, 0.0% of budgetWIKIMEDIA FOUNDATION INC: $1,040 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
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.

  • Who funds RANCHO MIRAGE WRITERS FESTIVAL ↗
  • Who funds TEXAS PUBLIC RADIO ↗
  • Who funds MINNESOTA ENVIRONMENTAL PARTNERSHIP ↗
  • Who funds SAN ANTONIO METROPOLITAN MINISTRIES INC ↗
  • Who funds FREEDOM FROM RELIGION FOUNDATION INC ↗
  • Who funds SAN ANTONIO CONSERVATION SOCIETY ↗
  • Who funds MICROGRANTS ↗
  • Who funds Lamorinda Soccer Club ↗
  • Who funds ALAMO PUBLIC TELECOMMUNICATIONS COUNCIL DOING BUSINESS AS KLRN ↗
  • Who funds MCNAY ART MUSEUM ↗
  • Who funds THE CHILDREN'S SHELTER ↗
  • Who funds KIVA MICROFUNDS ↗
  • Who funds THE OPERA SAN ANTONIO DBA OPERA SAN AN ↗
  • Who funds Witte Museum ↗
  • Who funds HEMISFAIR CONSERVANCY ↗
  • Who funds SAN ANTONIO MUSEUM OF ART ↗
  • Who funds SAN ANTONIO PARKS FOUNDATION ↗
  • Who funds The Texas State Historical Association ↗
  • Who funds NETWORK FOR GOOD ↗
  • Who funds Classic Theatre of San Antonio ↗
  • Who funds GUADALUPE CULTURAL ARTS CENTER ↗
  • Who funds CENTER FOR COMMUNITY EMPOWERMENT SYSTEMS ↗
  • Who funds Project MEND ↗
  • Who funds SAN ANTONIO CONSERVATION SOCIETY FOUNDATION ↗
  • Who funds TEXAS TRIBUNE INC ↗
  • Who funds SAY SI ↗
  • Who funds YOUTHLINK ↗
  • Who funds PARKS AND WILDLIFE FOUNDATION OF TEXAS ↗

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.

Elizabeth Huth Coates…San Antonio Area Foun…Russell Hill Rogers F…John R & Greli N Less…Marcia & Otto Koehler…Pryor Myra Stafford C…Faye L & William L Co…Nancy Smith Hurd Foun…Muriel F Siebert Foun…The Ewing Halsell Fou…Jack and Doris Smothe…Charitable Foundation…
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

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 Williamson Foundation funds: left to right is the share of its income from government, bottom to top the share from The Williamson 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%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, 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.

    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 53 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 Williamson’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