| Community Foundation for Southern Arizona | | Tucson, AZ | Local | 3 | 2024 | $585,000 |
| Met Foundation Inc | | Indianapolis, IN | National | 6 | 2024 | $331,000 |
| The Wallace Research Foundation | | Cedar Rapids, IA | National | 3 | 2024 | $272,000 |
| Kautz Family Foundation | | Tucson, AZ | National | 7 | 2024 | $185,000 |
| Raymond and Margaret Vicker Charitable Trust | | Tucson, AZ | Local | 4 | 2024 | $180,000 |
| Fred Maytag Family Foundation | | San Francisco, CA | National | 5 | 2024 | $97,130 |
| Rossetter Foundation | | Chicago, IL | National | 5 | 2024 | $49,000 |
| Phoebe R and John D Lewis Foundation | | Green Bay, WI | National | 6 | 2024 | $30,000 |
| The Hs Lopez Family Foundation | | Tucson, AZ | Local | 2 | 2024 | $27,000 |
| Jade Tree Foundation | | Greenville, DE | National | 7 | 2024 | $27,000 |
| Sheila Navarre Enos Charitable Foundation Trust | | Tucson, AZ | Local | 2 | 2024 | $13,039 |
| Adler Schuppert Family Foundation | | Wilmington, DE | Local | 3 | 2024 | $3,000 |
| Herbst Family Foundation | | Chicago, IL | National | 3 | 2024 | $950 |
| Frederick Gardner Cottrell Foundation | | Tucson, AZ | Local | 1 | 2023 | $25,000 |
| Steven C Leuthold Family Foundation | | Brevard, NC | National | 3 | 2023 | $25,000 |
| National Park Foundation | | Washington, DC | National | 1 | 2023 | $7,000 |
| Land Trust Alliance Incorporated | | Washington, DC | Local | 3 | 2022 | $43,120 |
| Arie and Ida Crown Memorial | | Chicago, IL | Local | 1 | 2022 | $500 |
| Quercus Fund Inc | | Palm Beach, FL | Local | 2 | 2021 | $415,000 |
| Barnes Family Foundation | | Tucson, AZ | National | 1 | 2021 | $200,000 |
| Progress Charitable Foundation | | Dover, DE | Local | 1 | 2021 | $37,500 |
| Southwestern Foundation for Education & Historical Preservatio | | Denver, CO | Local | 1 | 2021 | $10,000 |
| G a Binney Conservation Foundation Trust | | Reno, NV | National | 2 | 2021 | $10,000 |
| Alben F Bates and Clara G Bates Foundation | | Elmhurst, IL | National | 1 | 2021 | $2,000 |
| Westport Fund | | Washington, DC | National | 1 | 2021 | $500 |
| Environmental Defense Fund Incorporated | | New York, NY | National | 2 | 2020 | $42,000 |
| Enterprise Holdings Foundation | | Saint Louis, MO | National | 2 | 2020 | $9,000 |
| John K and Aline L Goodman Foundation | | Tucson, AZ | Local | 1 | 2020 | $1,000 |
| Bonneville Environmental Foundation | | Portland, OR | National | 1 | 2018 | $8,265 |
| Donald Pitt Family Foundation | | Tucson, AZ | Local | 1 | 2017 | $250 |