| The Elkins Foundation | | Houston, TX | Local | 1 | 2024 | $500,000 |
| John P Mcgovern Foundation | | Houston, TX | Local | 5 | 2024 | $355,000 |
| Brown Foundation Inc | | Houston, TX | Local | 5 | 2024 | $280,000 |
| The Powell Foundation | | Houston, TX | Local | 4 | 2024 | $189,968 |
| Nancy and Clive Runnells Foundation | | Houston, TX | Local | 6 | 2024 | $165,000 |
| American Bird Conservancy | | Marshall, VA | National | 5 | 2024 | $138,109 |
| Centerpoint Energy Foundation Inc | | Houston, TX | National | 4 | 2024 | $136,200 |
| Charles Jago Elder Foundation Inc | | Houston, TX | Local | 6 | 2024 | $97,303 |
| John M Oquinn Foundation | | Houston, TX | Local | 4 | 2024 | $85,000 |
| National Audubon Society Inc | | New York, NY | National | 7 | 2024 | $82,421 |
| Pierce Runnells Foundation | | Houston, TX | Local | 2 | 2024 | $35,000 |
| Cheniere Cares Inc | | Houston, TX | Local | 2 | 2024 | $30,000 |
| Lynne Murray Sr Educational Foundation | | Houston, TX | Local | 1 | 2024 | $25,000 |
| Bosch Community Fund | | Farmingtn Hls, MI | National | 2 | 2024 | $20,000 |
| II Corinthians 9-7 Foundation | | Austin, TX | Local | 2 | 2024 | $19,100 |
| Houston Livestock Show and Rodeo Educational Fund | | Houston, TX | Local | 1 | 2024 | $10,000 |
| Houston Jewish Community Foundation | | Houston, TX | Local | 1 | 2024 | $9,000 |
| Harris and Eliza Kempner Fund | | Galveston, TX | Local | 5 | 2024 | $7,547 |
| Edith and Bernard Stolbun Family Foundation | | Houston, TX | Local | 3 | 2024 | $7,500 |
| Major Family Foundation | | Wilmington, DE | Local | 3 | 2024 | $7,000 |
| Kayser Foundation | | Houston, TX | Local | 1 | 2024 | $2,500 |
| Sklar Family Foundation | | Houston, TX | Local | 3 | 2024 | $2,000 |
| Jacob & Terese Hershey Foundation | | Houston, TX | Local | 5 | 2023 | $230,000 |
| Alice Kleberg Reynolds Meyer Fdn Tr | | San Antonio, TX | Local | 1 | 2023 | $5,000 |
| Knobloch Family Foundation | | Fairfield, CT | National | 1 | 2023 | $5,000 |
| R F Humphreys Family Foundation | | Albany, NY | Local | 2 | 2023 | $3,500 |
| The Covia Foundation | | Independence, OH | National | 1 | 2023 | $2,500 |
| Land Trust Alliance Incorporated | | Washington, DC | Local | 3 | 2022 | $35,100 |
| Albert and Ethel Herzstein Charitable Foundation | | Houston, TX | Local | 1 | 2022 | $10,000 |
| Clayton Fund Inc Texas Commerce Bank | | Houston, TX | Local | 1 | 2022 | $5,000 |
| Garver Black Hilyard Family Foundation | | Houston, TX | Local | 3 | 2022 | $3,000 |
| Oshman Foundation | | Houston, TX | Local | 1 | 2022 | $2,000 |
| Eqt Foundation | | Canonsburg, PA | Local | 1 | 2022 | $400 |
| The Robert & Jane Cizik Foundation | | | — | 1 | 2021 | $50,000 |
| Erm Group Foundation Inc | | Malvern, PA | National | 1 | 2021 | $15,963 |
| Galveston Bay Foundation | | Kemah, TX | National | 1 | 2021 | $15,000 |
| Houston Endowment Inc | | Houston, TX | Local | 3 | 2020 | $900,000 |
| Jesse W Couch Charitable Foundation | | Houston, TX | National | 1 | 2020 | $50,000 |
| The Malcolm C Damuth Foundation | | Austin, TX | Local | 1 | 2020 | $25,000 |
| The Bayou Foundation Legacy Trust Company | | | — | 1 | 2020 | $25,000 |
| Susan Vaughan Foundation Inc | | Houston, TX | Local | 1 | 2020 | $20,000 |
| William S and Lora Jean Kilroy Foundation | | Katy, TX | Local | 1 | 2020 | $2,000 |
| Prometheas Charitable Tr | | Houston, TX | Local | 2 | 2019 | $5,000 |
| Garden Club of Houston | | Houston, TX | Local | 1 | 2018 | $24,600 |
| Ting Tsung and Wei Fong Chao Foundation | | Houston, TX | National | 1 | 2018 | $250 |