| Bear Gulch Foundation | | Greenville, DE | Local | 7 | 2024 | $164,382 |
| Harvey L & Maud C Sorensen Foundation | | San Rafael, CA | Local | 8 | 2024 | $90,000 |
| Beverly M Folger Foundation | | San Francisco, CA | Local | 4 | 2024 | $25,000 |
| San Mateo County Parks and Recreation Foundation | | San Mateo, CA | Local | 2 | 2024 | $14,450 |
| The Lipman Family Foundation Inc | | New York, NY | Local | 7 | 2024 | $11,000 |
| Walker Foundation Inc | | Pacifica, CA | Local | 4 | 2024 | $403 |
| Davidow Family Foundation | | Woodside, CA | Local | 4 | 2023 | $80,000 |
| The Board of Trustees of the Leland Stanford Junior University | | Stanford, CA | National | 1 | 2023 | $25,000 |
| Steven P Dostart Charitable Foundation | | Palo Alto, CA | Local | 1 | 2023 | $25,000 |
| Thornton S Glide Jr and Katrina D Glide Foundation | | Davis, CA | Local | 1 | 2023 | $5,000 |
| Cunningham-Gardiner Foundation | | Scarborough, NY | National | 2 | 2023 | $2,000 |
| Merck Company Foundation | | Rahway, NJ | National | 2 | 2022 | $100,000 |
| Tosa Foundation | | Portola Vally, CA | Local | 1 | 2021 | $250 |
| Atkinson Foundation | | San Francisco, CA | Local | 2 | 2020 | $15,000 |
| Barrett Environmental and Educational Foundation | | Woodside, CA | National | 1 | 2018 | $500 |
| George and Janet Jaffin Foundation Inc | | New York, NY | Local | 1 | 2017 | $2,500 |