Private foundation · San Antonio, TX

The Williamson Foundation

View org profile →Find similar funders →Invitation only
Typical grant size
$1K – $2K – $3K
25th · median · 75th percentile
Unique recipients
31
Repeat grantees
22
funded 2+ years

Application procedures · from 2024 990-PF

ContactTHE WILLIAMSON FOUNDATION · 2108592549

Leadership · from 2024 990-PF

Patrick Williamson
MANAGER
Michael Williamson
VICE PRESIDE
Ronn Williamson
SECRETARY/TR

Source: IRS Form 990-PF, Part VII. Officers, directors, and trustees as reported by the foundation.

Payout rate · TY 2024
3.3%
grants paid ÷ assets · ~5% IRS minimum
'17
'18
'19
'20
'21
'22
'23
'24
127
Total grants awarded
$443K
Total amount
$3K
Average grant
$34K
Largest grant

Giving by year

2024
$97K
19 grants
2023
$85K
20 grants
2022
$78K
19 grants
2021
$61K
21 grants
2020
$30K
19 grants
2019
$6K
3 grants
2018
$6K
2 grants
2017
$80K
24 grants

Top recipients

2 grants · MN · ✓ Exact match
$55K
7 grants · TX · ≈ likely match
$48K
2 grants · CA · ✓ Exact match
$40K
1 grant · TX · ✓ Exact match
$20K
2 grants · MN · ✓ Exact match
$20K
2 grants · CA · ✓ Exact match
$20K
6 grants · TX · ≈ likely match
$18K
Briscoe Western Art Museum
4 grants · TX
$15K
4 grants · WI · ✓ Exact match
$14K
San Antonio Botancial Garden
5 grants · TX
$14K

Recipient names are as reported on the 990-PF. ✓ Exact match = EIN matched to IRS records by exact name + state; ≈ likely match = EIN inferred from a closely similar name. The recipient EIN is never stated on the form — it is DoubleNine’s match.

Recent grants · most recent filings first

Minnesota Environmental Partnership
FOR THE ORGS CHARITABLE PURPOSES
MN · TY 2024
$34K
Rancho Mirage Writers Festival
FOR THE ORGS CHARITABLE PURPOSES
CA · TY 2024
$20K
Texas Public Radio
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2024
$10K
Briscoe Western Art Museum
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2024
$5K
Mccallum Theatre
FOR THE ORGS CHARITABLE PURPOSES
CA · TY 2024
$5K
Klrn
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2024
$3K
Mcnay Art Museum
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2024
$3K
San Antonio Botancial Garden
FOR THE ORGS CHARTIABLE PURPOSES
TX · TY 2024
$3K
San Antonio Conservation Society
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2024
$3K
Freedom From Religion Foundation
FOR THE ORGS CHARITABLE PURPOSES
WI · TY 2024
$2K
Opera San Antonio
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2024
$2K
Propublica Publisher's Circle
FOR THE ORGS CHARITABLE PURPOSES
NY · TY 2024
$2K
The Witte Museum
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2024
$1K
Hemisfair Conservancy
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2024
$1K
Texas State Historical Association
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2024
$1K
San Pedro Playhouse
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2024
$1K
San Antonio Museum of Art
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2024
$1K
Kansas University Endowment
FOR THE ORGS CHARITABLE PURPOSES
KS · TY 2024
$500
Little Flower Basilica
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2024
$100
Rancho Mirage Writers Festival
FOR THE ORGS CHARITABLE PURPOSES
CA · TY 2023
$20K
Texas Public Radio
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2023
$10K
Microgrants
FOR THE ORGS CHARITABLE PURPOSES
MN · TY 2023
$10K
Lamorinda Soccer Club
FOR THE ORGS CHARITABLE PURPOSES
CA · TY 2023
$10K
Briscoe Western Art Museum
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2023
$5K
Kiva Microfunds
FOR THE ORGS CHARITABLE PURPOSES
CA · TY 2023
$5K
Mccallum Theatre
FOR THE ORGS CHARITABLE PURPOSES
CA · TY 2023
$5K
Klrn
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2023
$3K
San Antonio Conservation Society
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2023
$3K
Mcnay Art Museum
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2023
$3K
San Antonio Botancial Garden
FOR THE ORGS CHARTIABLE PURPOSES
TX · TY 2023
$3K
Hemisfair Conservancy
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2023
$2K
The Witte Museum
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2023
$1K
Propublica Publisher's Circle
FOR THE ORGS CHARITABLE PURPOSES
NY · TY 2023
$1K
Texas State Historical Association
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2023
$1K
San Antonio Museum of Art
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2023
$1K
Opera San Antonio
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2023
$1K
The Classic Threatre of San Antonio
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2023
$1K
Freedom From Religion Foundation
FOR THE ORGS CHARITABLE PURPOSES
WI · TY 2023
$1K
Kansas University Endowment
FOR THE ORGS CHARITABLE PURPOSES
KS · TY 2023
$500
Minnesota Environmental Partnership
FOR THE ORGS CHARITABLE PURPOSES
MN · TY 2022
$21K
Microgrants
FOR THE ORGS CHARITABLE PURPOSES
MN · TY 2022
$10K
Lamorinda Soccer Club
FOR THE ORGS CHARITABLE PURPOSES
CA · TY 2022
$10K
Texas Public Radio
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2022
$8K
Kiva Microfunds
FOR THE ORGS CHARITABLE PURPOSES
CA · TY 2022
$7K
Briscoe Western Art Museum
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2022
$3K
San Antonio Conservation Society
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2022
$3K
San Antonio Botancial Garden
FOR THE ORGS CHARTIABLE PURPOSES
TX · TY 2022
$3K
Mcnay Art Museum
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2022
$3K
Samministries
FOR THE ORGS CHARITABLE PURPOSE
TX · TY 2022
$2K
Klrn
FOR THE ORGS CHARITABLE PURPOSES
TX · TY 2022
$2K

Source: IRS Form 990-PF, Part XV. Up to 50 most recent grants shown.