| American Association of Zoo Keepers | | Tucson, AZ | National | 6 | 2024 | $828,063 |
| The Wallace Research Foundation | | Cedar Rapids, IA | National | 5 | 2024 | $600,000 |
| Rouse Fam Charitable Tr I | | Havertown, PA | Local | 7 | 2024 | $323,500 |
| William H Donner Foundation Inc | | Tarrytown, NY | National | 4 | 2024 | $305,170 |
| John S and James L Knight Foundation Inc | | Miami, FL | National | 4 | 2024 | $210,000 |
| Pettus Crowe Foundation Inc | | Washington, DC | Local | 5 | 2024 | $205,139 |
| Cornolia Cogswell Rossi Foundation Inc | | Wilmington, DE | Local | 6 | 2024 | $186,000 |
| Richard C Seaver Charitable Trust 12-28-78 | | Los Angeles, CA | Local | 6 | 2024 | $160,000 |
| Blue Mountain Community Foundation | | Walla Walla, WA | Local | 3 | 2024 | $112,000 |
| The Shack Sackler Foundation | | New York, NY | Local | 4 | 2024 | $40,000 |
| Overlook Estate Foundation Inc | | Waverly, PA | Local | 4 | 2024 | $35,300 |
| Hoeliein Mcmickell Family Foundation | | Southlake, TX | Local | 6 | 2024 | $35,000 |
| Donald and Maureen Green Foundation | | Santa Rosa, CA | Local | 2 | 2024 | $31,000 |
| Mistler Charitable Trust | | Raleigh, NC | National | 3 | 2024 | $30,000 |
| The Pierre and Tana Matisse Foundation | | New York, NY | Local | 4 | 2024 | $30,000 |
| Charles L and Joan M Hirsch Family Foundation | | Cambridge, MA | National | 2 | 2024 | $15,000 |
| Dean Witter Foundation | | San Rafael, CA | Local | 1 | 2024 | $10,000 |
| 182210 Pgn Foundation | | Las Vegas, NV | National | 6 | 2024 | $6,000 |
| Xl Foundation | | Los Angeles, CA | National | 6 | 2024 | $5,636 |
| Records-Johnston Family Foundation Inc | | Oklahoma City, OK | Local | 2 | 2024 | $5,000 |
| Highfield Foundation | | Cincinnati, OH | National | 1 | 2024 | $5,000 |
| Bellis Blauvelt Judson Inc | | Holland, MI | National | 3 | 2024 | $3,000 |
| The Kranzdorf Family Foundation | | Bala Cynwyd, PA | National | 5 | 2024 | $2,500 |
| Seb Charitable Fund | | Brooklyn, NY | Local | 1 | 2024 | $1,571 |
| Ruth and Sheldon Goldstein Foundation | | Santa Paula, CA | Local | 2 | 2024 | $1,500 |
| Triple T Foundation | | Chardon, OH | Local | 4 | 2024 | $1,300 |
| James M Large Jr Family Foundation | | Locust Valley, NY | Local | 2 | 2024 | $1,000 |
| Rees-Jones Foundation | | Dallas, TX | Local | 4 | 2023 | $820,000 |
| Bently Foundation | | Minden, NV | National | 3 | 2023 | $209,437 |
| Griffith R Harsh IV and Margaret Cwhitman Charitable Foundation | | New York, NY | Local | 1 | 2023 | $15,000 |
| Adair Street Foundation | | Mandeville, LA | National | 7 | 2023 | $3,740 |
| Harry & Flora D Freund Memorial Foundation | | New York, NY | Local | 2 | 2023 | $3,500 |
| Pfundt Foundation | | Trevose, PA | Local | 3 | 2023 | $2,500 |
| Lillian Lincoln Foundation | | Hillsborough, CA | Local | 2 | 2022 | $468,090 |
| Max & Victoria Dreyfus Foundation | | Washington, DC | — | 3 | 2022 | $30,000 |
| Regina Bauer Frankenburg Foundation for Animal Welfare 7413318 | | Chicago, IL | National | 1 | 2022 | $30,000 |
| Riggio Foundation Tr | | New York, NY | Local | 1 | 2022 | $15,000 |
| Bernard and Anne Spitzer Charitable Tr | | New York, NY | National | 2 | 2022 | $10,000 |
| Elbridge & Evelyn Stuart Foundation 26000118300 | | Jackson, WY | National | 1 | 2022 | $5,000 |
| The Hamlin Family Foundation Inc | | Wilmington, DE | National | 4 | 2022 | $4,000 |
| Bland Family Foundation | | St Louis, MO | National | 1 | 2022 | $1,500 |
| Dove Givings Foundation II | | Purchase, NY | National | 1 | 2022 | $524 |
| Shulkin Family Foundation | | Chicago, IL | National | 1 | 2022 | $524 |
| Horne Family Charitable Foundation Inc | | Boston, MA | National | 2 | 2021 | $40,000 |
| The Sexton Family Foundation | | Vero Beach, FL | National | 4 | 2021 | $25,000 |
| United Way of Middle Tennessee Inc | | Nashville, TN | Local | 2 | 2021 | $13,860 |
| Tricord Foundation | | Madison, WI | National | 1 | 2021 | $4,500 |
| Mclin Family Foundation | | Lafayette, CA | Local | 2 | 2021 | $3,000 |
| Josephine Lawrence Hopkins Foundation | | Milwaukee, WI | National | 1 | 2021 | $2,500 |
| Donald L Barnes Foundation the Foundation | | Chesterfield, MO | Local | 1 | 2021 | $500 |
| University of Melbourne USA Foundation | | | — | 1 | 2020 | $226,742 |
| Bromley Charitable Tr | | Westwood, MA | Local | 1 | 2020 | $50,000 |
| Ravenwise Foundation | | | — | 1 | 2020 | $20,433 |
| Blair Family Foundation | | Boston, MA | Local | 2 | 2020 | $10,000 |
| Pamela and Laurence Tarica Foundation | | Sands Point, NY | Local | 1 | 2020 | $5,000 |
| Dominium Foundation | | Plymouth, MN | Local | 1 | 2020 | $5,000 |
| Heron Oaks Foundation | | | National | 1 | 2020 | $3,200 |
| Bobbys Fund Foundation | | Seattle, WA | Local | 1 | 2020 | $2,000 |
| The John and Kathleen Schreiber Foundation | | Lake Forest, IL | Local | 1 | 2020 | $500 |
| Spectemur Agendo Inc | | Washington, DC | Local | 1 | 2020 | $250 |
| Engelsma Family Foundation | | Sioux Falls, SD | Local | 1 | 2020 | $200 |
| Seaworld & Busch Gardens Conservation Fund | | Orlando, FL | National | 1 | 2019 | $15,000 |
| Camalotte Foundation | | Lafayette, CA | Local | 1 | 2019 | $10,000 |
| John R and Carolyn J Maness Family Foundation Inc | | Chapel Hill, NC | Local | 1 | 2019 | $3,000 |
| Bluhm Family Charitable Foundation | | Chicago, IL | Local | 1 | 2019 | $1,000 |
| Bedell World Citizenship Fund | | Spirit Lake, IA | Local | 1 | 2018 | $10,000 |