| Allen Family Philanthropies | | Seattle, WA | National | 1 | 2024 | $142,479 |
| Center for Plant Conservation Inc | | Escondido, CA | National | 7 | 2024 | $121,975 |
| The Burts Bees Greater Good Foundation | | Wilmington, DE | Local | 5 | 2024 | $69,000 |
| Jandy Ammons Foundation Inc | | Raleigh, NC | Local | 1 | 2024 | $58,853 |
| Helen R Buck Foundation | | Philadelphia, PA | National | 4 | 2024 | $56,000 |
| Grace Jones Richardson Tr | | Greensboro, NC | National | 6 | 2024 | $34,000 |
| The Imperial Charitable Trust | | | Local | 5 | 2024 | $22,500 |
| E Craig Wall Sr Foundation | | Conway, SC | Local | 2 | 2024 | $19,805 |
| Scott a and Phyllis P Crabtree Family Foundation Inc | | Alexandria, VA | National | 2 | 2024 | $15,000 |
| Chapman Family Foundation | | Little Falls, NJ | Local | 7 | 2024 | $2,400 |
| H M Bitner Charitable Tr | | Pittsburgh, PA | National | 1 | 2024 | $1,000 |
| Packard Humanities Institute | | Los Altos, CA | National | 4 | 2023 | $63,000 |
| Chicita Culberson Char Tr | | Pennington, NJ | Local | 1 | 2023 | $12,600 |
| Steven C Leuthold Family Foundation | | Brevard, NC | National | 1 | 2023 | $10,000 |
| Christy and John Mack Foundation | | Purchase, NY | Local | 1 | 2021 | $5,000 |
| Thomas S Kenan III Foundation Inc | | Chapel Hill, NC | Local | 1 | 2021 | $1,500 |
| Brown Advisory Charitable Foundation Inc | | Baltimore, MD | Local | 1 | 2021 | $1,000 |
| American Public Gardens Association | | Wilmington, DE | National | 1 | 2020 | $14,893 |
| The Eddie and Jo Allison Smith Family Foundation Inc | | Greenville, NC | Local | 1 | 2020 | $2,500 |
| The Kenan Family Foundation | | Chapel Hill, NC | Local | 1 | 2020 | $1,000 |
| Carlson Family Foundation Inc | | Chapel Hill, NC | National | 1 | 2020 | $100 |
| Kelly-Webb Trust Robert Epting Trustee | | | — | 2 | 2019 | $50,000 |
| The Royster Family Foundation | | | National | 1 | 2018 | $6,000 |