Data / Foundation grants / The Williamson Foundation
The Williamson Foundation: 20 grants to organizations, $74,975 (tax year ended December 2025)
The Williamson Foundation, a private foundation in San Antonio, TX, paid 20 grants to organizations totaling $74,975 in its tax year ended December 2025, according to its Form 990-PF filed with the IRS on August 24, 2026. The largest was $20,000 to Rancho Mirage Writers Festival in Rancho Mirage, CA for for the orgs charitable purposes.
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- EIN
- 611805991
- Based in
- San Antonio, TX
- Assets
- $2,561,484
- Grants paid
- $74,975
- Tax year ended
- December 2025
Grants paid, tax year ended December 2025
From the Form 990-PF filed August 24, 2026, IRS object ID 202642369349100514. It reported $74,975 in grants paid; 20 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Rancho Mirage Writers Festival | Rancho Mirage, CA | For the orgs charitable purposes | Education | $20,000 | apps.irs.gov |
| Texas Public Radio | San Antonio, TX | For the orgs charitable purposes | Arts, culture and humanities | $10,325 | apps.irs.gov |
| Freedom From Religion Foundation | Madison, WI | For the orgs charitable purposes | Religion-related | $6,198 | apps.irs.gov |
| Briscoe Western Art Museum | San Antonio, TX | For the orgs charitable purposes | $5,149 | apps.irs.gov | |
| McCallum Theatre | Palm Desert, CA | For the orgs charitable purposes | $5,000 | apps.irs.gov | |
| KLRN | San Antonio, TX | For the orgs charitable purposes | $4,000 | apps.irs.gov | |
| Opera San Antonio | San Antonio, TX | For the orgs charitable purposes | Arts, culture and humanities | $3,090 | apps.irs.gov |
| Propublica Publisher's Circle | New York, NY | For the orgs charitable purposes | $3,075 | apps.irs.gov | |
| Project Mend | San Antonio, TX | For the orgs charitable purposes | Medical research | $2,630 | apps.irs.gov |
| San Antonio Conservation Society Foundation | San Antonio, TX | For the orgs charitable purposes | Arts, culture and humanities | $2,580 | apps.irs.gov |
| San Antonio Botancial Garden | San Antonio, TX | For the orgs chartiable purposes | $2,576 | apps.irs.gov | |
| Texas Tribune | Austin, TX | For the orgs charitable purposes | Education | $2,045 | apps.irs.gov |
| McNay Art Museum | San Antonio, TX | For the orgs charitable purposes | Arts, culture and humanities | $1,500 | apps.irs.gov |
| The Witte Museum | San Antonio, TX | For the orgs charitable purposes | Arts, culture and humanities | $1,200 | apps.irs.gov |
| Wikimedia Foundation | San Francisco, CA | For the orgs chartiable purpose | $1,040 | apps.irs.gov | |
| Hemisfair Conservancy | San Antonio, TX | For the orgs charitable purposes | Recreation and sports | $1,037 | apps.irs.gov |
| Green Spaces Alliance of South Texas | San Antonio, TX | For the orgs charitable purposes | $1,030 | apps.irs.gov | |
| San Antonio Museum of Art | San Antonio, TX | For the orgs charitable purposes | Arts, culture and humanities | $1,000 | apps.irs.gov |
| Texas State Historical Association | Austin, TX | For the orgs charitable purposes | Arts, culture and humanities | $1,000 | apps.irs.gov |
| Kansas University Endowment Foundation | Lawrence, KS | For the orgs charitable purposes | $500 | apps.irs.gov |
Grants paid, tax year ended December 2024
From the Form 990-PF filed July 2, 2025, IRS object ID 202521839349100632. It reported $97,021 in grants paid; 19 grants to organizations are listed.
| Recipient | Location | Purpose | Cause | Amount | Source |
|---|---|---|---|---|---|
| Minnesota Environmental Partnership | Saint Paul, MN | For the orgs charitable purposes | Environment | $34,150 | apps.irs.gov |
| Rancho Mirage Writers Festival | Rancho Mirage, CA | For the orgs charitable purposes | Education | $20,000 | apps.irs.gov |
| Texas Public Radio | San Antonio, TX | For the orgs charitable purposes | Arts, culture and humanities | $10,325 | apps.irs.gov |
| Briscoe Western Art Museum | San Antonio, TX | For the orgs charitable purposes | $5,149 | apps.irs.gov | |
| McCallum Theatre | Palm Desert, CA | For the orgs charitable purposes | $5,000 | apps.irs.gov | |
| KLRN | San Antonio, TX | For the orgs charitable purposes | $3,000 | apps.irs.gov | |
| McNay Art Museum | San Antonio, TX | For the orgs charitable purposes | Arts, culture and humanities | $2,500 | apps.irs.gov |
| San Antonio Botancial Garden | San Antonio, TX | For the orgs chartiable purposes | $2,500 | apps.irs.gov | |
| San Antonio Conservation Society Foundation | San Antonio, TX | For the orgs charitable purposes | Arts, culture and humanities | $2,500 | apps.irs.gov |
| Freedom From Religion Foundation | Madison, WI | For the orgs charitable purposes | Religion-related | $2,066 | apps.irs.gov |
| Opera San Antonio | San Antonio, TX | For the orgs charitable purposes | Arts, culture and humanities | $2,000 | apps.irs.gov |
| Propublica Publisher's Circle | New York, NY | For the orgs charitable purposes | $2,000 | apps.irs.gov | |
| The Witte Museum | San Antonio, TX | For the orgs charitable purposes | Arts, culture and humanities | $1,200 | apps.irs.gov |
| Hemisfair Conservancy | San Antonio, TX | For the orgs charitable purposes | Recreation and sports | $1,031 | apps.irs.gov |
| San Antonio Museum of Art | San Antonio, TX | For the orgs charitable purposes | Arts, culture and humanities | $1,000 | apps.irs.gov |
| San Pedro Playhouse | San Antonio, TX | For the orgs charitable purposes | $1,000 | apps.irs.gov | |
| Texas State Historical Association | Austin, TX | For the orgs charitable purposes | Arts, culture and humanities | $1,000 | apps.irs.gov |
| Kansas University Endowment Foundation | Lawrence, KS | For the orgs charitable purposes | $500 | apps.irs.gov | |
| Little Flower Basilica | San Antonio, TX | For the orgs charitable purposes | $100 | apps.irs.gov |
Causes funded
From grants whose recipient has a cause.
| Cause | Granted |
|---|---|
| Education | $42,045 |
| Arts, culture and humanities | $41,220 |
| Environment | $34,150 |
| Religion-related | $8,264 |
| Medical research | $2,630 |
| Recreation and sports | $2,068 |
States funded
| Recipient state | Granted |
|---|---|
| Texas | $72,467 |
| California | $51,040 |
| Minnesota | $34,150 |
| Wisconsin | $8,264 |
| New York | $5,075 |
| Kansas | $1,000 |
Also on SpecStream
- Who funds arts, culture and humanities in Texas
- Who funds education in California
- Who funds environment in Minnesota
- Who funds religion-related in Wisconsin
- Who funds medical research in Texas
- Who funds recreation and sports in Texas
Updated August 24, 2026. Read from IRS Form 990-PF e-file data. Public domain (U.S. government work). Grants are as each foundation reported them to the IRS on its Form 990-PF. Grants to individuals are left out. A grant has a cause only where the recipient's name and city match one organization in the IRS Business Master File, and the cause is that organization's NTEE major group. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.