Grants paid by William Knox Holt Foundation
EIN 74-6084245 · San Antonio, TX · Form 990-PF, Part XV
William Knox Holt Foundation of San Antonio, TX (EIN 74-6084245) reported 75 grants paid totaling $1,088,550 to 34 recipients in tax years 2020–2024, on Form 990-PF, Part XV. Derived from IRS e-file data, dataset version 2026.09.0, built 2026-09-03.
Grants paid
$1,088,550
75 grants
Recipients
34
distinct organizations
Tax years
2020–2024
4 filings in the corpus
By tax year
| Tax year | Grants paid | Amount paid | Approved for future |
|---|---|---|---|
| 2020 | 9 | $120,000 | — |
| 2022 | 21 | $300,050 | — |
| 2023 | 21 | $332,500 | — |
| 2024 | 24 | $336,000 | — |
Top recipients
The 34 recipients receiving the most from William Knox Holt Foundation, by grants paid, out of 34 distinct recipients.
| Recipient | Match | Location | Grants | Total paid | Latest year |
|---|---|---|---|---|---|
| Monterey Bay Aquarium 94-2487469 | C | Monterey, CA | 4 | $120,000 | 2024 |
| Just Keep Livin Foundation 20-3921057 | C | Los Angeles, CA | 4 | $100,000 | 2024 |
| Colorado Rocky Mountain School 84-0425174 | B | Carbondale, CO | 4 | $100,000 | 2024 |
| Witte Museum 74-1400537 | B | San Antonio, TX | 4 | $90,000 | 2024 |
| University of the Pacific | U | Stockton, CA | 4 | $75,000 | 2024 |
| Mobile Loaves & Fishes 74-2956081 | B | Austin, TX | 4 | $75,000 | 2024 |
| Lawrence Hall of Science | U | Berkeley, CA | 2 | $65,000 | 2023 |
| Texas Biomedical Research Institute 74-1109630 | B | San Antonio, TX | 4 | $36,000 | 2024 |
| San Antonio Botanical Gardens 74-2178792 | C | San Antonio, TX | 3 | $35,000 | 2024 |
| San Antonio River Foundation 42-1602181 | C | San Antonio, TX | 3 | $30,000 | 2024 |
| Pease Park Conservancy 46-2388316 | C | Austin, TX | 3 | $30,000 | 2024 |
| Holdsworth Center 81-4254457 | C | Austin, TX | 3 | $30,000 | 2024 |
| Mcnay Art Museum 74-1195277 | B | San Antonio, TX | 3 | $25,000 | 2024 |
| Haggin Museum | U | Stockton, CA | 2 | $24,550 | 2023 |
| Muny Conservancy 84-2599950 | B | Austin, TX | 2 | $22,500 | 2024 |
| Caesar Kleberg Wildlife Research Center | U | Kingsville, TX | 2 | $20,000 | 2022 |
| Austin Sunshine Camps 83-1563310 | D | Austin, TX | 2 | $20,000 | 2023 |
| University of California Berkeley Foundation 94-6090626 | B | Berkeley, CA | 1 | $20,000 | 2024 |
| Stanford University 26-4580872 | C | Stanford, CA | 2 | $20,000 | 2023 |
| San Joaquin Pioneer & Historical Society 94-1196214 | B | Stockton, CA | 1 | $15,000 | 2024 |
| Musical Bridges Around the World 74-2891493 | B | San Antonio, TX | 3 | $15,000 | 2024 |
| Mind Science Foundation 74-1384861 | B | San Antonio, TX | 3 | $15,000 | 2024 |
| Texas A&m University - Kingsville Foundation Inc 23-7166534 | B | Kingsville, TX | 1 | $10,000 | 2024 |
| Caesar Kleberg Wildlife Research Center- Texas A&m Kingsville | U | Kingsville, TX | 1 | $10,000 | 2023 |
| The Explorer's Club - Texas Chapter 87-3351954 | B | Austin, TX | 1 | $10,000 | 2024 |
| The Board of Trustees of the Leland Stanford Junior University 94-1156365 | C | Redwood City, CA | 1 | $10,000 | 2024 |
| Austin Ymbl Sunshine Camp 74-6023176 | C | Austin, TX | 1 | $10,000 | 2024 |
| San Antonio Academy | U | San Antonio, TX | 1 | $10,000 | 2020 |
| Dell Children's Foundation | U | Austin, TX | 1 | $10,000 | 2023 |
| Cmc Foundation of Central Texas | U | St Louis, MO | 1 | $10,000 | 2024 |
| Meeker Education Foundation 45-5495144 | B | Meeker, CO | 1 | $8,000 | 2022 |
| Film Society of Austin Inc | U | Austin, TX | 1 | $7,500 | 2024 |
| Greater Austin Performing Arts Center Inc 74-2867681 | B | Austin, TX | 1 | $5,000 | 2024 |
| Long Center | U | Austin, TX | 1 | $5,000 | 2023 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Every grant
All 75 grant rows this organization reported, most recent first.
| Tax year | Recipient | Match | Amount | Type | Purpose | Source filing |
|---|---|---|---|---|---|---|
| 2024 | Colorado Rocky Mountain School Inc Carbondale, CO | B | $50,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2024 | Monterey Bay Aquarium Foundation Monterey, CA | B | $35,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2024 | Just Keep Livin Foundation Sherman Oaks, CA | B | $30,000 | paid | TO FUND AFTER SCHOOL PROGRAMS. | 202523159349102212 |
| 2024 | University of the Pacific Stockton, CA | U | $25,000 | paid | TO FUND THE LIBRARY PROJECT. | 202523159349102212 |
| 2024 | University of California Berkeley Foundation Berkeley, CA | B | $20,000 | paid | TO FUND THE LAWRENCE HALL OF SCIENCE OUTDOOR NATURE LAB. | 202523159349102212 |
| 2024 | Mobile Loaves & Fishes Inc Austin, TX | B | $20,000 | paid | TO FUND COMMUNITY FIRST VILLAGE PROGRAM. | 202523159349102212 |
| 2024 | Witte Museum San Antonio, TX | B | $15,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2024 | San Joaquin Pioneer & Historical Society Stockton, CA | B | $15,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2024 | Cmc Foundation of Central Texas St Louis, MO | U | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2024 | The Holdsworth Center Austin, TX | B | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2024 | San Antonio Botanical Garden Society Inc San Antonio, TX | B | $10,000 | paid | TO FUND IMAGINARY WORLDS. | 202523159349102212 |
| 2024 | San Antonio River Foundation San Antonio, TX | B | $10,000 | paid | TO FUND THE CONFLUENCE PARK PROGRAM. | 202523159349102212 |
| 2024 | The Explorer's Club - Texas Chapter Austin, TX | B | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2024 | The Board of Trustees of the Leland Stanford Junior University Redwood City, CA | C | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2024 | Austin Ymbl Sunshine Camp Austin, TX | C | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2024 | Texas A&m University - Kingsville Foundation Inc Kingsville, TX | B | $10,000 | paid | TO FUND THE CAESAR KLEBERG WILDLIFE RESEARCH CENTER'S HOLT-ATHERTON MEMORIAL FUND. | 202523159349102212 |
| 2024 | Mcnay Art Museum San Antonio, TX | B | $10,000 | paid | TO FUND ART-BASED EDUCATION PROGRAMS. | 202523159349102212 |
| 2024 | Film Society of Austin Inc Austin, TX | U | $7,500 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2024 | Muny Conservancy Austin, TX | B | $7,500 | paid | TO FUND SUMMER CAMP SCHOLARSHIPS. | 202523159349102212 |
| 2024 | Pease Park Conservancy Austin, TX | C | $5,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2024 | Musical Bridges Around the World Inc San Antonio, TX | C | $5,000 | paid | TO FUND YOUTH PROGRAMS. | 202523159349102212 |
| 2024 | Mind Science Foundation San Antonio, TX | B | $5,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2024 | Greater Austin Performing Arts Center Inc Austin, TX | B | $5,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2024 | Texas Biomedical Research Institute San Antonio, TX | B | $1,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE. | 202523159349102212 |
| 2023 | Lawrence Hall of Science Berkeley, CA | U | $35,000 | paid | OUTDOOR NATURE LAB | 202403139349100215 |
| 2023 | Just Keep Livin Foundation Los Angeles, CA | C | $30,000 | paid | AFTER-SCHOOL PROGRAM | 202403139349100215 |
| 2023 | Witte Museum San Antonio, TX | B | $30,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202403139349100215 |
| 2023 | Monterey Bay Aquarium Monterey, CA | C | $30,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202403139349100215 |
| 2023 | University of the Pacific Stockton, CA | U | $25,000 | paid | LIBRARY PROJECT | 202403139349100215 |
| 2023 | Mobile Loaves & Fishes Austin, TX | B | $20,000 | paid | COMMUNITY FIRST! VILLAGE PROGRAM | 202403139349100215 |
| 2023 | Colorado Rocky Mountain School Carbondale, CO | B | $20,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202403139349100215 |
| 2023 | Pease Park Conservancy Austin, TX | C | $20,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202403139349100215 |
| 2023 | San Antonio Botanical Gardens San Antonio, TX | C | $15,000 | paid | IMAGINARY WORLDS | 202403139349100215 |
| 2023 | Haggin Museum Stockton, CA | U | $12,500 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202403139349100215 |
| 2023 | Austin Sunshine Camps Austin, TX | D | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202403139349100215 |
| 2023 | Holdsworth Center Austin, TX | C | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202403139349100215 |
| 2023 | Texas Biomedical Research Institute San Antonio, TX | B | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202403139349100215 |
| 2023 | Mcnay Art Museum San Antonio, TX | B | $10,000 | paid | ARTS-BASED EDUCATION PROGRAMS | 202403139349100215 |
| 2023 | Caesar Kleberg Wildlife Research Center- Texas A&m Kingsville Kingsville, TX | U | $10,000 | paid | HOLT-ATHERTON MEMORIAL FUND | 202403139349100215 |
| 2023 | Dell Children's Foundation Austin, TX | U | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202403139349100215 |
| 2023 | San Antonio River Foundation San Antonio, TX | C | $10,000 | paid | CONFLUENCE PARK PROGRAM | 202403139349100215 |
| 2023 | Stanford University Stanford, CA | C | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202403139349100215 |
| 2023 | Mind Science Foundation San Antonio, TX | B | $5,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202403139349100215 |
| 2023 | Musical Bridges Around the World San Antonio, TX | B | $5,000 | paid | YOUTH PROGRAM | 202403139349100215 |
| 2023 | Long Center Austin, TX | U | $5,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202403139349100215 |
| 2022 | Monterey Bay Aquarium Monterey, CA | C | $30,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202313189349101451 |
| 2022 | Witte Museum San Antonio, TX | B | $30,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202313189349101451 |
| 2022 | Lawrence Hall of Science Berkeley, CA | U | $30,000 | paid | OUTDOOR NATURE LAB | 202313189349101451 |
| 2022 | Just Keep Livin Foundation Los Angeles, CA | C | $30,000 | paid | AFTER-SCHOOL PROGRAM | 202313189349101451 |
| 2022 | Mobile Loaves & Fishes Austin, TX | B | $20,000 | paid | COMMUNITY FIRST! VILLAGE PROGRAM | 202313189349101451 |
| 2022 | Colorado Rocky Mountain School Carbondale, CO | B | $20,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202313189349101451 |
| 2022 | University of the Pacific Stockton, CA | U | $15,000 | paid | LIBRARY PROJECT | 202313189349101451 |
| 2022 | Muny Conservancy Austin, TX | B | $15,000 | paid | SUMMER CAMP SCHOLARSHIPS | 202313189349101451 |
| 2022 | Haggin Museum Stockton, CA | U | $12,050 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202313189349101451 |
| 2022 | Caesar Kleberg Wildlife Research Center Kingsville, TX | U | $10,000 | paid | HOLT-ATHERTON MEMORIAL FUND | 202313189349101451 |
| 2022 | San Antonio River Foundation San Antonio, TX | C | $10,000 | paid | CONFLUENCE PARK PROGRAM | 202313189349101451 |
| 2022 | San Antonio Botanical Gardens San Antonio, TX | C | $10,000 | paid | IMAGINARY WORLDS | 202313189349101451 |
| 2022 | Holdsworth Center Austin, TX | C | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202313189349101451 |
| 2022 | Austin Sunshine Camps Austin, TX | D | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202313189349101451 |
| 2022 | Stanford University Stanford, CA | C | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202313189349101451 |
| 2022 | Texas Biomedical Research Institute San Antonio, TX | B | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202313189349101451 |
| 2022 | Meeker Education Foundation Meeker, CO | B | $8,000 | paid | HOLT ATHERTON AVIATION SCHOLARSHIP | 202313189349101451 |
| 2022 | Pease Park Conservancy Austin, TX | C | $5,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202313189349101451 |
| 2022 | Mcnay Art Museum San Antonio, TX | B | $5,000 | paid | ARTS-BASED EDUCATION PROGRAMS | 202313189349101451 |
| 2022 | Mind Science Foundation San Antonio, TX | B | $5,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202313189349101451 |
| 2022 | Musical Bridges Around the World San Antonio, TX | B | $5,000 | paid | YOUTH PROGRAM | 202313189349101451 |
| 2020 | Monterey Bay Aquarium Monterey, CA | C | $25,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202133179349100633 |
| 2020 | Witte Museum San Antonio, TX | B | $15,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202133179349100633 |
| 2020 | Mobile Loaves & Fishes Austin, TX | B | $15,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202133179349100633 |
| 2020 | Texas Biomedical Research Institute San Antonio, TX | B | $15,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202133179349100633 |
| 2020 | Colorado Rocky Mountain School Carbondale, CO | B | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202133179349100633 |
| 2020 | University of the Pacific Stockton, CA | U | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202133179349100633 |
| 2020 | Just Keep Livin Foundation Los Angeles, CA | C | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202133179349100633 |
| 2020 | Caesar Kleberg Wildlife Research Center Kingsville, TX | U | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202133179349100633 |
| 2020 | San Antonio Academy San Antonio, TX | U | $10,000 | paid | TO FUND ORGANIZATION'S EXEMPT PURPOSE | 202133179349100633 |
Match tier: A Reported EIN · B Exact name and place · C Strong name match · D Probable name match · U Unresolved. Tiers C and D are inferred, not reported; see how matching works.
Recipient matching for this dataset version has not yet completed its independent precision check. Tier A rows carry the EIN the filer reported; tiers B–D are the matcher's inference and should be read as leads until the check is published on the methodology page.
Source filings
Every figure above is traceable to one of these IRS e-file returns by its OBJECT_ID.
| Form | Tax year | Period end | Filed | Schema | IRS OBJECT_ID |
|---|---|---|---|---|---|
| 990PF | 2024 | 2024-12-31 | not stated | 2024v5.2 | 202523159349102212 |
| 990PF | 2023 | 2023-12-31 | not stated | 2023v5.1 | 202403139349100215 |
| 990PF | 2022 | 2022-12-31 | not stated | 2022v5.0 | 202313189349101451 |
| 990PF | 2020 | 2020-12-31 | not stated | 2020v4.1 | 202133179349100633 |
Derived from IRS Form 990-PF e-file XML; recipient identities from the IRS Exempt Organizations Business Master File. Dataset version 2026.09.0, built 2026-09-03. The same rows as Parquet: manifest; as JSON: /api/funders/746084245.json.
The same organization elsewhere in the program: exempt status and filing health · federal awards · grant guidance · open opportunities.
This is informational only, derived from public data on the dates shown. It is not an eligibility determination, and not legal, tax, or accounting advice. Verify against the official source before relying on it.