| St Lukes Foundation | | Phoenix, AZ | Local | 5 | 2024 | $3,018,447 |
| The Cullen Trust for Health Care | | Houston, TX | Local | 3 | 2024 | $846,000 |
| University of Miami | | Coral Gables, FL | National | 5 | 2024 | $650,147 |
| John M Oquinn Foundation | | Houston, TX | Local | 4 | 2024 | $610,000 |
| Henry & Miriam Kaplan Foundation | | | National | 5 | 2024 | $416,293 |
| G Harold and Leila Mathers Charitable Foundation | | Mount Kisco, NY | National | 2 | 2024 | $225,637 |
| John S Dunn Foundation | | Houston, TX | Local | 1 | 2024 | $200,000 |
| Ralph H and Ruth J Mc Cullough Foundation | | Houston, TX | Local | 7 | 2024 | $195,000 |
| William a and Madeline Welder Smith Foundation | | Houston, TX | Local | 5 | 2024 | $170,000 |
| Ray C Fish Foundation | | Houston, TX | Local | 3 | 2024 | $150,000 |
| Three G Foundation | | Houston, TX | Local | 3 | 2024 | $110,000 |
| Sarofim Foundation | | Houston, TX | Local | 1 | 2024 | $100,000 |
| Fraternal Order of Eagles Foundation | | Grove City, OH | National | 1 | 2024 | $63,492 |
| Huff Family Foundation | | Houston, TX | Local | 4 | 2024 | $35,000 |
| Ott Charitable Foundation | | Houston, TX | Local | 5 | 2024 | $16,500 |
| Charles H Stout Foundation | | Reno, NV | National | 1 | 2024 | $13,500 |
| Sue Nan and Rod Cutsinger Foundation | | Houston, TX | Local | 2 | 2024 | $10,000 |
| Gayden Family Foundation Tr | | Dallas, TX | Local | 1 | 2024 | $10,000 |
| Mechia Foundation | | Beaumont, TX | Local | 3 | 2024 | $9,000 |
| Leonard and Teresa Friedman Foundation | | Houston, TX | Local | 6 | 2024 | $4,400 |
| Winkelmann Charitable Foundation | | Houston, TX | Local | 1 | 2024 | $500 |
| Ellwood Foundation | | Houston, TX | Local | 5 | 2023 | $150,000 |
| Otis Booth Foundation | | Los Angeles, CA | Local | 4 | 2023 | $100,000 |
| Weingarten-Schnitzer Foundation Inc | | Wilmington, DE | Local | 3 | 2023 | $35,700 |
| Laurie and Reed Morian Foundation | | Houston, TX | Local | 1 | 2023 | $25,000 |
| A R Tony and Maria J Sanchez Family Foundation | | Houston, TX | Local | 1 | 2023 | $25,000 |
| Walter M Mischer & Mary a Mischer Foundation | | Houston, TX | Local | 1 | 2023 | $25,000 |
| Edward and Ellen Randall Foundation | | Hondo, TX | Local | 6 | 2023 | $24,000 |
| The Sarofim Foundation | | | Local | 2 | 2023 | $20,000 |
| Coneway Family Foundation | | Houston, TX | Local | 4 | 2023 | $17,000 |
| Hurwitz Family Foundation | | Houston, TX | Local | 3 | 2023 | $6,500 |
| Adler Foundation | | Houston, TX | Local | 3 | 2023 | $6,100 |
| Alkek & Williams Foundation | | Houston, TX | Local | 1 | 2023 | $1,000 |
| Stephen Warren Miles and Marilyn Ross Miles Foundation | | Houston, TX | National | 1 | 2022 | $10,055 |
| Weil Gots Hal & Manges Foundation Inc | | New York, NY | Local | 1 | 2022 | $10,000 |
| The Stanford and Joan Alexander Foundation | | Houston, TX | Local | 2 | 2022 | $10,000 |
| Clutch City Foundation | | Houston, TX | Local | 4 | 2021 | $800,000 |
| Paul B & Frances Lenora Terry Jr Family Foundation | | Houston, TX | Local | 5 | 2021 | $4,500 |
| Joe E Davis Foundation | | Pennington, NJ | Local | 4 | 2021 | $4,000 |
| Harry S Moss Heart Trust | | Dallas, TX | Local | 1 | 2020 | $70,000 |
| Glassell Family Foundation Inc | | Houston, TX | Local | 1 | 2020 | $25,000 |
| Rr Family Foundation | | Houston, TX | Local | 3 | 2020 | $5,000 |
| Kinder Foundation | | Houston, TX | Local | 1 | 2020 | $2,000 |
| William S and Lora Jean Kilroy Foundation | | Katy, TX | Local | 2 | 2020 | $450 |
| Charles & Melissa Davis Charitable Foundation | | | — | 1 | 2019 | $25,000 |
| Russo Family Charitable Foundation | | Orchard Park, NY | Local | 2 | 2019 | $20,000 |
| J Squared Family Foundation | | Houston, TX | Local | 2 | 2019 | $11,000 |
| Bill & Katie Weaver Charitable Trust | | Dallas, TX | Local | 2 | 2019 | $750 |
| Brazelton Family Foundation | | Houston, TX | Local | 1 | 2019 | $50 |
| Texas Medical Center Foundation | | Houston, TX | Local | 1 | 2018 | $203,273 |
| Saving Tiny Hearts Society | | Buffalo Grove, IL | National | 1 | 2018 | $50,000 |
| Kappa Kappa Gamma Charitable Foundation | | Houston, TX | Local | 1 | 2018 | $5,700 |
| Steven and Sheila Miller Foundation | | Houston, TX | National | 1 | 2018 | $5,000 |
| New York Heart Research Foundation Inc | | Carle Place, NY | — | 1 | 2018 | — |