| Memorial Hermann Health System | | Houston, TX | Local | 7 | 2024 | $50,774,431 |
| Bloomberg Family Foundation Inc | | New York, NY | National | 1 | 2024 | $19,161,000 |
| John M Oquinn Foundation | | Houston, TX | Local | 4 | 2024 | $5,175,000 |
| Will Erwin Headache Research Foundation | | Houston, TX | Local | 7 | 2024 | $3,360,205 |
| William Stamps Farish Fund | | Houston, TX | Local | 5 | 2024 | $3,000,000 |
| Phillips Family Foundation | | Houston, TX | Local | 3 | 2024 | $2,100,000 |
| Joella and Stewart Morris Foundation | | Houston, TX | Local | 5 | 2024 | $1,478,750 |
| Four Lee Foundation | | Houston, TX | Local | 4 | 2024 | $1,460,166 |
| Ruth and Ted Bauer Family Foundation | | Houston, TX | Local | 2 | 2024 | $1,087,500 |
| Marie M and James H Galloway Foundation | | Houston, TX | Local | 4 | 2024 | $1,035,000 |
| Whalley Foundation Inc | | Houston, TX | Local | 7 | 2024 | $885,000 |
| John S Dunn Foundation | | Houston, TX | Local | 4 | 2024 | $832,800 |
| Postl Family Foundation | | Houston, TX | Local | 7 | 2024 | $775,500 |
| Glassell Family Foundation Inc | | Houston, TX | Local | 3 | 2024 | $750,000 |
| Keith and Mattie Stevenson Foundation | | Houston, TX | Local | 7 | 2024 | $575,000 |
| Fox and Monica Benton Foundation | | Houston, TX | Local | 5 | 2024 | $502,500 |
| Clutch City Foundation | | Houston, TX | Local | 6 | 2024 | $448,940 |
| Shepard Family Private Foundation | | Baltimore, MD | National | 7 | 2024 | $447,047 |
| Haag Family Foundation | | Chicago, IL | Local | 7 | 2024 | $370,000 |
| Vivian L Smith Foundation | | Houston, TX | Local | 7 | 2024 | $350,000 |
| Vanderhider Foundation | | Houston, TX | Local | 2 | 2024 | $257,950 |
| Florence and William K Mcgee Jr Family Foundation | | Houston, TX | Local | 2 | 2024 | $220,000 |
| Strake Foundation | | Houston, TX | Local | 7 | 2024 | $165,000 |
| Walter M Mischer & Mary a Mischer Foundation | | Houston, TX | Local | 4 | 2024 | $142,538 |
| H G Ash Foundation | | Houston, TX | Local | 7 | 2024 | $139,500 |
| Sterling-Turner Foundation | | Houston, TX | Local | 3 | 2024 | $85,000 |
| Houston Jewish Community Foundation | | Houston, TX | Local | 4 | 2024 | $80,750 |
| R E Smith Foundation | | Houston, TX | Local | 7 | 2024 | $67,500 |
| Bowers Foundation | | Houston, TX | Local | 3 | 2024 | $61,600 |
| Crane Family Foundation | | Houston, TX | National | 2 | 2024 | $55,000 |
| Marta and Stephen Pate Family Foundation | | Houston, TX | Local | 5 | 2024 | $46,628 |
| John P Mcgovern Foundation | | Houston, TX | Local | 4 | 2024 | $40,000 |
| Charity Guild of Catholic Women of Harris County | | Houston, TX | Local | 3 | 2024 | $38,000 |
| Wcn Cares | | Spring, TX | Local | 1 | 2024 | $35,000 |
| Edward & Helen Oppenheimer Foundation | | Houston, TX | Local | 3 | 2024 | $30,000 |
| Weingarten-Schnitzer Foundation Inc | | Wilmington, DE | Local | 5 | 2024 | $29,500 |
| Khourie Family Foundation | | Houston, TX | Local | 3 | 2024 | $26,700 |
| Mechia Foundation | | Beaumont, TX | Local | 7 | 2024 | $25,309 |
| The Sydnor and Olga Oden Foundation | | Houston, TX | Local | 7 | 2024 | $20,000 |
| Albert and Ethel Herzstein Charitable Foundation | | Houston, TX | Local | 2 | 2024 | $15,000 |
| Christopher Reeve Foundation a New Jersey Nonprofit Corporation | | Short Hills, NJ | National | 1 | 2024 | $13,820 |
| Shackouls Family Foundation | | Albany, NY | Local | 1 | 2024 | $10,000 |
| Mark a Chapman Foundation | | Sealy, TX | Local | 1 | 2024 | $10,000 |
| Swalwell-Connor Family Foundation Inc | | Dallas, TX | Local | 4 | 2024 | $9,000 |
| Alkek & Williams Foundation | | Houston, TX | Local | 3 | 2024 | $8,000 |
| Sue Nan and Rod Cutsinger Foundation | | Houston, TX | Local | 2 | 2024 | $6,000 |
| Labcorp Charitable Foundation | | Burlington, NC | National | 3 | 2024 | $1,500 |
| Don a Sanders Family Foundation | | Houston, TX | Local | 1 | 2024 | $1,000 |
| William S and Lora Jean Kilroy Foundation | | Katy, TX | Local | 1 | 2024 | $200 |
| Victory Houston Inc | | Houston, TX | Local | 1 | 2023 | $102,000 |
| Beirne Foundation | | Houston, TX | Local | 7 | 2023 | $96,000 |
| Marek Family Foundation | | Houston, TX | Local | 4 | 2023 | $90,000 |
| Holthouse Foundation for Kids | | Houston, TX | Local | 2 | 2023 | $84,600 |
| Zorich Family Foundation | | Houston, TX | Local | 2 | 2023 | $75,000 |
| Sands Family Foundation | | Dedham, MA | National | 4 | 2023 | $65,000 |
| Dunham Charitable Foundation | | Houston, TX | Local | 6 | 2023 | $60,000 |
| Fred and Mabel R Parks Foundation | | Sugar Land, TX | Local | 1 | 2023 | $40,000 |
| United Way Miami Inc | | Miami, FL | Local | 3 | 2023 | $39,700 |
| Kayser Foundation | | Houston, TX | Local | 5 | 2023 | $38,500 |
| Rdm Positive Impact Foundation a Ca Non Profit Public Benefit Corp | | The Woodlands, TX | Local | 1 | 2023 | $15,000 |
| Richard M Fairbanks Foundation Inc | | Indianapolis, IN | Local | 1 | 2023 | $6,000 |
| The Stanford and Joan Alexander Foundation | | Houston, TX | Local | 1 | 2023 | $3,000 |
| Papa Johns Foundation Inc | | Wilmington, DE | National | 1 | 2023 | $1,000 |
| T W Lott Family Foundation | | Houston, TX | Local | 1 | 2023 | $200 |
| Dan L Duncan Family Foundation | | Houston, TX | Local | 4 | 2022 | $2,450,000 |
| Jlh Foundation | | Katy, TX | Local | 3 | 2022 | $1,033,332 |
| Rawley Foundation P65070008 | | Chicago, IL | Local | 4 | 2022 | $350,000 |
| Still Water Foundation II | | Austin, TX | Local | 2 | 2022 | $190,000 |
| Dr Marnie Rose Foundation Inc | | Bellaire, TX | Local | 2 | 2022 | $185,000 |
| The Elkins Foundation | | Houston, TX | Local | 3 | 2022 | $175,000 |
| The Lyons Foundation | | | Local | 1 | 2022 | $100,000 |
| Joanne Andjohn Dallepezze Foundation | | Naples, FL | National | 5 | 2022 | $60,000 |
| Jesse W Couch Charitable Foundation | | Houston, TX | National | 1 | 2022 | $50,000 |
| Oracle Health Foundation | | Kansas City, MO | Local | 1 | 2022 | $47,500 |
| Houston Endowment Inc | | Houston, TX | Local | 3 | 2022 | $40,000 |
| Union Pacific Foundation | | Omaha, NE | National | 3 | 2022 | $30,000 |
| Cadence Bank Foundation | | Tupelo, MS | — | 1 | 2022 | $25,000 |
| The Niekro Aneurysm and Avm Foundation | | Houston, TX | National | 1 | 2022 | $25,000 |
| Boyd and Evelyn Mullen Charitable Foundation | | Pennington, NJ | Local | 1 | 2022 | $15,000 |
| Kevin and Lesley Lilly Foundation | | Washington, DC | Local | 1 | 2022 | $10,000 |
| Mithoff Family Charitable Foundation | | Houston, TX | Local | 1 | 2022 | $9,200 |
| Gulf Coast Medical Foundation | | Damon, TX | Local | 1 | 2022 | $7,500 |
| Hobby Family Foundation | | Houston, TX | Local | 1 | 2022 | $3,500 |
| Littler Mendelson Foundation Inc | | Kansas City, MO | National | 1 | 2022 | $2,200 |
| Thomas J Gordon Foundation | | Kerrville, TX | Local | 2 | 2022 | $2,000 |
| Le Sage Family Foundation | | The Woodlands, TX | National | 1 | 2022 | $1,000 |
| Boatner Family Foundation | | Spring, TX | — | 1 | 2022 | $1,000 |
| Meyer and Ida Gordon Foundation | | Houston, TX | Local | 1 | 2022 | $1,000 |
| Winkelmann Charitable Foundation | | Houston, TX | Local | 1 | 2022 | $100 |
| Brazelton Family Foundation | | Houston, TX | Local | 1 | 2022 | $100 |
| Ed Foundation | | Johnson City, TX | National | 1 | 2021 | $150,000 |
| Kbr Charitable Foundation Inc | | Houston, TX | Local | 2 | 2021 | $100,000 |
| Agee Family Foundation | | Houston, TX | Local | 3 | 2021 | $100,000 |
| South Texas Charitable Foundation | | Victoria, TX | Local | 4 | 2021 | $90,000 |
| Stedman West Foundation | | Houston, TX | Local | 1 | 2021 | $75,000 |
| Enrico & Sandra Di Portanova | | Houston, TX | Local | 2 | 2021 | $30,000 |
| Vizient Foundation Inc | | Irving, TX | National | 1 | 2021 | $25,000 |
| Ruth Jones Macdonald Charitable Tr | | Houston, TX | Local | 2 | 2021 | $20,000 |
| Brown Foundation Inc | | Houston, TX | Local | 1 | 2021 | $20,000 |
| Fant Foundation | | Houston, TX | Local | 1 | 2021 | $10,000 |
| James and Molly Crownover Family Foundation | | Houston, TX | Local | 1 | 2021 | $10,000 |
| Nancy and Clive Runnells Foundation | | Houston, TX | Local | 1 | 2021 | $10,000 |
| Beazer Charity Foundation Inc | | Atlanta, GA | Local | 1 | 2021 | $2,500 |
| Richard Stodder Charitable Foundation | | Houston, TX | Local | 1 | 2021 | $1,000 |
| Roger Clemens Foundation | | Houston, TX | National | 1 | 2021 | $250 |
| Cotton Charitable Foundation | | Houston, TX | Local | 1 | 2021 | $0 |
| The Cullen Trust for Health Care | | Houston, TX | Local | 3 | 2020 | $1,800,000 |
| Petersen Family Foundation | | Sugar Land, TX | Local | 2 | 2020 | $500,000 |
| Northeast Hospital Foundation | | Humble, TX | Local | 2 | 2020 | $327,894 |
| The George Foundation | | Richmond, TX | — | 1 | 2020 | $312,906 |
| Robert & Janice Mcnair Foundation | | Houston, TX | Local | 2 | 2020 | $105,000 |
| The Susman Foundation (Formerly Susman Family Foundation) | | | Local | 2 | 2020 | $100,000 |
| Rooms to Go Foundation Inc | | Seffner, FL | National | 1 | 2020 | $100,000 |
| Headstrong Brain Injury Foundation | | | — | 1 | 2020 | $69,858 |
| Victor and Anna Mae Beghini Charitable Foundation | | Houston, TX | Local | 2 | 2020 | $30,000 |
| H Scott Caven III Memorial Foundation Inc | | Wilmington, DE | Local | 3 | 2020 | $15,000 |
| Micky Elliott Family Foundation | | Nacogdoches, TX | Local | 2 | 2020 | $14,000 |
| Baps Charities Inc | | Windsor, NJ | National | 1 | 2020 | $5,000 |
| The Virginia & L E Simmons Family Foundation | | Houston, TX | Local | 1 | 2020 | $2,500 |
| Dennis Ming-Hong Chen Foundation | | Sugar Land, TX | Local | 1 | 2020 | $1,000 |
| Junior League of Houston Inc | | Houston, TX | Local | 1 | 2020 | $0 |
| Dovetail Impact Foundation | | Houston, TX | National | 1 | 2019 | $125,000 |
| W T and Louise J Moran Foundation | | Houston, TX | Local | 2 | 2019 | $80,000 |
| Medallion Foundation Inc | | Houston, TX | Local | 1 | 2019 | $50,000 |
| Galtney Foundation | | Houston, TX | — | 1 | 2019 | $25,000 |
| Together Making Changes Corporation | | Homosassa, FL | — | 1 | 2019 | $10,152 |
| Taub Foundation | | Houston, TX | Local | 2 | 2019 | $6,000 |
| Jeff B and Katherine B Love Foundation | | | — | 2 | 2019 | $5,000 |
| Madison Charitable Foundation Inc | | Richmond, TX | Local | 2 | 2019 | $2,000 |
| Hurwitz Family Foundation | | Houston, TX | Local | 2 | 2019 | $1,500 |
| Duncan Genesis Foundation | | Houston, TX | Local | 1 | 2019 | $1,000 |
| Broughton Foundation Trust | | Dallas, TX | Local | 1 | 2018 | $150,000 |
| J E and L E Mabee Foundation Inc | | Midland, TX | National | 1 | 2018 | $100,000 |
| Sgl Foundation | | Conroe, TX | Local | 1 | 2018 | $50,000 |
| Lindley Family Foundation | | Houston, TX | Local | 1 | 2018 | $5,000 |
| Andrew Delaney Foundation | | Austin, TX | Local | 1 | 2018 | $5,000 |
| Natural Gas Partners Foundation | | | Local | 1 | 2018 | $5,000 |
| Russell and Diana Hawkins Family Foundation | | | — | 1 | 2018 | $2,500 |
| The Sarofim Foundation | | | Local | 1 | 2017 | $20,000 |
| Harry S and Isabel C Cameron Foundation | | Houston, TX | Local | 1 | 2017 | $5,000 |