| The Blood & Tissue Center Foundation | | San Antonio, TX | Local | 7 | 2024 | $3,547,869 |
| Scripps Research Institute | | LA Jolla, CA | National | 4 | 2024 | $872,775 |
| Alliance for Community Transfusion Services LLC | | Bedford, TX | National | 3 | 2024 | $535,349 |
| Myra Stafford Pryor Charitable Tr 010193 | | San Antonio, TX | Local | 4 | 2024 | $126,277 |
| The Edouard Foundation Inc | | New York, NY | National | 5 | 2024 | $68,000 |
| Shelby Tengg Foundation for Heart & Cancer Research | | Dallas, TX | Local | 2 | 2024 | $25,000 |
| John R & Greli N Less Charitable Trust | | San Antonio, TX | Local | 3 | 2023 | $300,000 |
| Elizabeth Huth Maddux Charitable Foundation | | San Antonio, TX | Local | 2 | 2023 | $160,000 |
| Norman Family Foundation | | San Antonio, TX | Local | 2 | 2023 | $14,000 |
| Nancy Smith Hurd Foundation Tr | | San Antonio, TX | Local | 3 | 2022 | $600,000 |
| Helen Freeborn Kerr Charitable Foundation | | Dallas, TX | Local | 1 | 2022 | $10,000 |
| Wal-Mart Foundation | | Bentonville, AR | National | 1 | 2022 | $10,000 |
| Wood Family Memorial Trust | | Victoria, TX | Local | 1 | 2022 | $5,000 |
| Worth Family Foundation | | San Antonio, TX | Local | 1 | 2022 | $1,000 |
| Joseph and Martye Rubin Foundation | | San Antonio, TX | Local | 1 | 2022 | $750 |
| Robert a & Kathey K Anderson Foundation | | Victoria, TX | Local | 5 | 2021 | $25,000 |
| Faye L and William L Cowden Charitable Foundation | | San Antonio, TX | Local | 1 | 2021 | $7,500 |
| Ron and Martha Doornink Foundation | | Wilmington, DE | Local | 2 | 2021 | $6,000 |
| Marathon Petroleum Foundation Inc | | | — | 1 | 2020 | $64,000 |
| Frost Bank | | San Antonio, TX | Local | 1 | 2020 | $35,000 |
| Sarma Charitable Foundation | | San Antonio, TX | Local | 1 | 2020 | $25,000 |
| Union Pacific Foundation | | Omaha, NE | National | 1 | 2020 | $20,000 |