The Williamson Foundation
The Williamson Foundation is a private foundation based in San Antonio, Texas. In its 2025 filing, it reported giving $74,975 through 20 grants to charitable organizations.
The Williamson Foundation at a glance
In short: The Williamson Foundation gave $75K across 20 grants in 2025 (avg $4K), mostly in Texas. Source: 2025 IRS Form 990-PF.
- Annual giving (2025)
- $74,975
- -22.7% vs 2024
- Grants made (2025)
- 20
- +5.3% vs 2024
- Average grant
- $3,749
- -26.6% vs 2024
- Median grant
- $2,578
- Total assets
- $2,853,229
- -2.0% vs 2024
- Primary geography
- Texas (52% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990-PF, 2025 View filing
Data from IRS Form 990-PF, 2025; updated October 2026.
How to apply to The Williamson Foundation
- Accepts unsolicited proposals
- No
- How to Apply
-
The foundation does not accept unsolicited requests. It states that it makes contributions only to preselected charitable organizations.
- Contact
Mailing address: 442 Thelma Dr, San Antonio, TX 78212
Phone: (210) 859-2549
Application details from Grantable's research on the foundation's public materials; confirm on its website before applying.
Who The Williamson Foundation funds
How this funder distributes its grants
Top Recipients
Top 10 recipients in 2025
The largest 2025 recipient was Rancho Mirage Writers Festival ($20K). Together the top 10 received $62K.
Grant Size Distribution
99 grants across all recorded years
The most common grant size was under $50K: 99 grants of 99 (100%).
Geographic Focus
Where this funder awards grants
The 2025 grants went to recipients in Texas (52% of grant dollars), California (35%), Wisconsin (8%), New York (4%), and Kansas (1%). San Antonio-area recipients included Texas Public Radio, the Briscoe Western Art Museum, KLRN, Opera San Antonio, Project MEND, and the San Antonio Conservation Society Foundation.
Grant Distribution by State
Share of 2025 grant dollars across all 20 itemized grants.
Cities
How The Williamson Foundation gives
- 80% of 2025 grantees were also funded in 2024. Method
- Giving held roughly steady from 2022 to 2025 (−4%). Method
- In 2025 it paid out 92% of its IRS minimum distribution (the 5% rule). Foundations have until the end of the next year to meet it. Method
Estimate from itemized grant lists in IRS Form 990-PF filings (2025). Recipient names are matched across years, so a renamed or misspelled grantee can look new; grants to individuals are left out. Methodology.
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2019 to 2025, annual grant giving ranged from $6K (2019) to $97K (2024). In 2025 it made 20 grants totaling $75K.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Rancho Mirage Writers Festival Rancho Mirage, CA | For the Orgs Charitable Purposes | $20,000 |
| Texas Public Radio San Antonio, TX | For the Orgs Charitable Purposes | $10,325 |
| Freedom from Religion Foundation Madison, WI | For the Orgs Charitable Purposes | $6,198 |
| Briscoe Western Art Museum San Antonio, TX | For the Orgs Charitable Purposes | $5,149 |
| McCallum Theatre Palm Desert, CA | For the Orgs Charitable Purposes | $5,000 |
| KLRN San Antonio, TX | For the Orgs Charitable Purposes | $4,000 |
| Opera San Antonio San Antonio, TX | For the Orgs Charitable Purposes | $3,090 |
| Propublica Publisher's Circle New York, NY | For the Orgs Charitable Purposes | $3,075 |
| Project Mend San Antonio, TX | For the Orgs Charitable Purposes | $2,630 |
| San Antonio Conservation Society Foundation San Antonio, TX | For the Orgs Charitable Purposes | $2,580 |
Ready to take the next step with The Williamson Foundation?
Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Qualifying Distributions | Net Investment Income | Distributable Amount |
|---|---|---|---|---|---|---|---|---|
| 2025 | $2,853,229 | $67,444 | $107,850 | $74,975 | 20 | $107,850 | $67,444 | $116,689 |
| 2024 | $2,910,273 | $279,091 | $111,281 | $97,021 | 19 | $111,281 | $54,469 | $90,971 |
| 2023 | $2,723,205 | $173,247 | $92,590 | $85,315 | 20 | $92,590 | $15,765 | $82,755 |
| 2022 | $2,647,544 | $165,643 | $87,047 | $77,950 | 19 | $87,047 | $49,986 | $84,683 |
| 2021 | $2,573,448 | $331,669 | $64,739 | $61,000 | 21 | $64,739 | $41,401 | $86,941 |
| 2020 | $2,289,052 | $171,987 | $35,267 | $29,500 | 19 | — | $33,162 | $67,416 |
| 2019 | $2,136,764 | $191,533 | $10,364 | $5,500 | 3 | — | $38,394 | $60,026 |
Under IRS private-foundation payout rules, The Williamson Foundation reported a distributable amount of $117K for 2025 — the minimum it must pay out in qualifying distributions.
Research compiled by Grantable AI from public sources. Last updated September 2026.
Mission & Focus Areas
The filing does not state a mission for the foundation. Its 2025 grants included organizations whose stated missions span arts and culture, public media and journalism, education, disability services, and church-state separation. For example, the Rancho Mirage Writers Festival says it organizes an annual festival for writers and readers; Texas Public Radio says it works to engage, inspire, and inform; and Project MEND says it improves the lives of people living with disabilities and illness through medical equipment and assistive technology.
Grantmaking
In 2025, the foundation made 20 grants totaling $74,975. Grants ranged from $500 to $20,000, with a median grant of $2,578.
The largest grants included $20,000 to the Rancho Mirage Writers Festival, $10,325 to Texas Public Radio, $6,198 to the Freedom From Religion Foundation, $5,149 to the Briscoe Western Art Museum, and $5,000 to the McCallum Theatre. Other recipients included KLRN ($4,000), Opera San Antonio ($3,090), ProPublica Publisher’s Circle ($3,075), Project MEND ($2,630), and the Texas Tribune ($2,045).
Leadership & Key People
Leadership team and compensation from IRS filings
The 2025 filing lists Patrick Williamson as manager, Michael Williamson as vice president, and Ronn Williamson as secretary/treasurer.
The Williamson Foundation's 2025 filing lists 3 officers; none of the 3 officers listed in 2025 report compensation.
Officers on the 2025 filing
Patrick Williamson
Manager
On filings since 2019
No compensation reported
Michael Williamson
Vice President
On filings since 2021
No compensation reported
Ronn Williamson
Secretary & Treasurer
Secretary → Secretary & Treasurer, 2025
On filings since 2021
No compensation reported
Data from IRS Form 990 filings, 2019–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about The Williamson Foundation
How much does The Williamson Foundation give each year?
The Williamson Foundation gave $75K across 20 grants in 2025, according to its 2025 IRS Form 990-PF. In 2024 it gave $97K across 19 grants.
What is The Williamson Foundation's typical grant size?
The Williamson Foundation's median grant in 2025 was $2,578, and its average grant was $3,749, across 20 grants on its 2025 IRS Form 990-PF.
Where does The Williamson Foundation give grants?
The Williamson Foundation gives mostly in Texas: 52% of the grant dollars itemized on its 2025 IRS Form 990-PF went to recipients there. The next largest states were California (35%) and Wisconsin (8%). The most frequent recipient cities were San Antonio, TX (12 grants) and Austin, TX (2 grants).
Who are The Williamson Foundation's largest grantees?
The Williamson Foundation's largest 2025 grantees include Rancho Mirage Writers Festival ($20,000), Texas Public Radio ($10,325) and Freedom from Religion Foundation ($6,198), according to its 2025 IRS Form 990-PF. Together they received 49% of its itemized 2025 grant dollars.
How large is The Williamson Foundation?
The Williamson Foundation reported $2.9M in total assets on its 2025 IRS Form 990-PF. It paid out $108K in qualifying distributions that year, against a required minimum of $117K (roughly 5% of its investment assets). Falling short in one year is not a violation: foundations have until the end of the next year to meet the minimum.
What does The Williamson Foundation fund?
The filing does not state a mission for the foundation. Its 2025 grants included organizations whose stated missions span arts and culture, public media and journalism, education, disability services, and church-state separation. See mission & focus areas ↑
How do I apply for a grant from The Williamson Foundation?
The foundation does not accept unsolicited requests. Eligibility and process details are in the grantmaking section of this profile. See how to apply ↑
What is The Williamson Foundation's EIN?
The Williamson Foundation's EIN (Employer Identification Number) is 61-1805991. IRS Form 990 filing data is available on this page for 2019–2025.
Does The Williamson Foundation accept unsolicited proposals?
No, according to Grantable's research on the foundation's published guidelines. See how to apply ↑
Data last updated October 2026. Sourced from IRS Form 990-PF filings. Research dossier generated September 2026.
Data update history
(3)
When this profile's IRS filing data changed on Grantable
- Added Form 990-PF for fiscal year 2019 (received by the IRS June 24, 2020)
- Added Form 990-PF for fiscal year 2025 (received by the IRS August 24, 2026)
- IRS filings on file for fiscal years 2020–2024
Live grants for the work The Williamson Foundation funds
Philanthropy, Voluntarism & Grantmaking Open opportunities, soonest deadline first.
Explore Open Grants
Browse active grant opportunities in The Williamson Foundation's focus areas in our free grants database
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Cite this profile
Grantable. (2026). The Williamson Foundation funder profile. GrantGraph. Retrieved October 16, 2026, from https://grantable.co/funders/the-williamson-foundation-morg_397a77272f3c438aa86be42c121118d1
BibTeX
@misc{grantable_611805991_2026,
author = {{Grantable}},
title = {{The Williamson Foundation funder profile}},
howpublished = {GrantGraph},
year = {2026},
url = {https://grantable.co/funders/the-williamson-foundation-morg_397a77272f3c438aa86be42c121118d1},
note = {Accessed 2026-10-16. Data licensed CC BY 4.0}
}The figures on this page are open data under CC BY 4.0: reuse them with credit to Grantable and a link. Download the data.
Figures come from The Williamson Foundation's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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