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Texas · 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 FY2025(still arriving)
20
Grants FY2025
19
Organizations funded FY2024
11%
First-time grantees FY2024
Read the full brief
Median grant, FY2025
$2,580
Largest grant, FY2025
$20,000
Organizations funded a year
2 to 21
FY2018 to FY2024
States reached, FY2025
5
Total assets, FY2025
$2.9M
Applications
Preselected organizations only
Per its most recent filing; check its own site

How open it is to new grantees

In FY2024, 11% of the organizations The Williamson Foundation funded were first-time grantees, receiving 1% of its grant dollars.

New vs renewed · share of each year

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

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

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

’18’19’20’21’22’23’24
Arts & CultureEnvironmentRecreation & SportsEducationReligionPhilanthropyOther
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.
The numbers by year
Fiscal yearOrganizations fundedTo those organizationsFirst-time grantees
FY2025still arriving20$75k30%
FY202419$97k11%
FY202319$80k11%
FY202218$71k22%
FY202121$61k14%
FY202019$30k42%
FY20193$6k33%
FY20182$6k100%
94% 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

Where its grants go

Grant dollars by states, across the years we hold.

Which US states its grants reach

MN
IL
WI
NY
CA
VA
KS
TN
DC
TX

Top grantees

Largest recipients by total granted, FY2017 to FY2025, and the share of each one’s budget the grants supplied at peak.

Show all 33 grantees

What it could do for these grantees

Plus 18 recipients with no EIN on record ($91k), not named here.

Where it is load-bearing

Each grantee by its size and the share of its budget The Williamson Foundation supplied at peak.

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 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 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

Tap a dot to name the grantee.

How this is measured
Share of budget is the funder’s grant in a year over the grantee’s total revenue that year, at its highest across the years we hold; revenue is from all sources. Only grantees confirmed against their own filings, whose grants do not exceed their revenue, are plotted: the largest 28.

Nonprofits that may fit its grantmaking

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 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.

Compare The Williamson Foundation with peer funders

About The Williamson Foundation

How much does The Williamson Foundation give?
The Williamson Foundation reported 20 grants totaling $74,975 in its FY2025 IRS filing. It funded between 2 and 21 organizations a year over FY2018 to FY2024.
What does The Williamson Foundation fund?
By grant dollars over FY2017 to FY2025, its largest causes are Arts & Culture (47%), Environment (17%), Recreation & Sports (7%).
Who are The Williamson Foundation's largest grantees?
By total granted over FY2017 to FY2025: Rancho Mirage Writers Festival ($60k), Texas Public Radio ($59k), Minnesota Environmental Partnership ($55k).
Does The Williamson Foundation fund new organizations?
In FY2024, 11% of the organizations it funded were first-time grantees.
Does The Williamson Foundation accept unsolicited applications?
Its most recent filing reports that it funds preselected organizations and does not take unsolicited requests. Check the foundation's own site before ruling it out.
Which funders back the same organizations as The Williamson Foundation?
Its strongest co-funders, measured against what their size predicts, include Elizabeth Huth Coates Charitable Foundation of 1992, San Antonio Area Foundation, Russell Hill Rogers Fund for the Arts.
Where is The Williamson Foundation based?
The Williamson Foundation is based in TX.

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

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