| The Keith Campbell Foundation for the Environment Inc | | Bethesda, MD | National | 6 | 2024 | $527,122 |
| Chesapeake Bay Trust | | Tampa, FL | Local | 1 | 2024 | $392,853 |
| Community Foundation of Anne Arundel County Inc | | Annapolis, MD | Local | 7 | 2024 | $244,815 |
| Blue Waters Foundation Inc | | Annapolis, MD | Local | 4 | 2024 | $105,689 |
| Brick Companies Foundation Inc | | Edgewater, MD | Local | 1 | 2024 | $56,000 |
| Kohnken Family Foundation Inc | | Boca Raton, FL | National | 5 | 2024 | $46,500 |
| Chambers Family Foundation Inc | | Annapolis, MD | National | 4 | 2024 | $24,000 |
| J Kent Mcnew Family Foundation | | Annapolis, MD | Local | 4 | 2024 | $15,157 |
| Stark Family Foundation Inc | | Harwood, MD | National | 5 | 2024 | $2,500 |
| Norman J Fisher and Doris Fisher Foundation | | Annapolis, MD | Local | 1 | 2024 | $2,500 |
| Bruce Ford Brown Memorial Tr | | Wilmington, DE | National | 3 | 2024 | $1,500 |
| Robert F Schumann Foundation | | Saint Louis, MO | National | 2 | 2023 | $40,000 |
| Philpott Family Foundation 121698 | | Saint Louis, MO | Local | 2 | 2023 | $10,000 |
| Deering Fam Foundation Inc | | Riderwood, MD | Local | 2 | 2023 | $1,000 |
| The Peterson Family Foundation | | | — | 4 | 2022 | $20,000 |
| Jim and Patty Rouse Charitable Foundation Inc | | Upperco, MD | Local | 2 | 2021 | $6,000 |
| Anne Arundel Economic Development Corporation | | Annapolis, MD | Local | 1 | 2020 | $19,780 |
| Advisors Charitable Gift Fund Inc | | Woburn, MA | National | 1 | 2019 | $5,000 |
| Chesapeake Charities Inc | | Stevensville, MD | Local | 1 | 2018 | $57,334 |