| Maine Timberlands Charitable Trust | | Woburn, MA | Local | 7 | 2024 | $490,000 |
| Richard King Mellon Foundation Dtd 01-01-47 | | Ligonier, PA | Local | 1 | 2024 | $150,000 |
| F T Weyerhaeuser Family Fund | | Saint Paul, MN | National | 5 | 2024 | $125,000 |
| Van Der Stricht Foundation | | New York, NY | National | 7 | 2024 | $116,059 |
| Greater Lowell Community Foundation Inc | | Lowell, MA | Local | 7 | 2024 | $76,555 |
| Weyerhaeuser Family Foundation Inc | | Saint Paul, MN | National | 3 | 2024 | $60,000 |
| Alexander and Sarah Cutler Family Foundation | | Gates Mills, OH | Local | 1 | 2024 | $25,000 |
| Climate Conservation | | Bozeman, MT | National | 1 | 2024 | $25,000 |
| The Wapack Foundation C/O Nichols and Pratt | | Boston, MA | National | 4 | 2024 | $20,000 |
| Virginia S Warner Foundation Inc | | Washington, DC | National | 3 | 2024 | $20,000 |
| French Foundation | | Pittsburgh, PA | National | 2 | 2024 | $17,500 |
| George Frederick Jewett Foundation East | | St Paul, MN | Local | 1 | 2024 | $15,000 |
| Merrill Family Charitable Foundation Inc | | Boston, MA | National | 2 | 2024 | $13,000 |
| Westwind Foundation | | North Garden, VA | Local | 2 | 2024 | $12,000 |
| The Berkshire Taconic Community Foundation Inc | | Sheffield, MA | National | 1 | 2024 | $7,500 |
| William Howard Flowers Jr | | Thomasville, GA | Local | 6 | 2024 | $7,000 |
| Stifler Family Foundation | | Brookline, MA | Local | 1 | 2024 | $3,500 |
| Gateway Fund | | Boston, MA | National | 1 | 2024 | $2,500 |
| Louis & Bessie Adler Foundation Inc | | New York, NY | Local | 1 | 2024 | $2,500 |
| Middlecott Foundation | | Boston, MA | National | 5 | 2024 | $2,200 |
| Edith Crocker Charitable Tr | | Boston, MA | National | 5 | 2024 | $1,650 |
| George and Carol Milne Foundation | | Boca Grande, FL | National | 6 | 2024 | $1,540 |
| Brown Advisory Charitable Foundation Inc | | Baltimore, MD | Local | 1 | 2024 | $500 |
| Lookout Foundation Inc | | Boston, MA | Local | 4 | 2023 | $1,059,999 |
| Overhills Foundation | | Garden City, NY | Local | 7 | 2023 | $130,000 |
| Davis Conservation Foundation | | Yarmouth, ME | Local | 3 | 2023 | $60,000 |
| Horizon Foundation Inc | | Rockport, MA | National | 3 | 2023 | $45,000 |
| Allan B Roby and Frances M Roby Charitable Trust | | Lyme, NH | National | 4 | 2023 | $12,000 |
| Beard Family Charitable Trust | | Wayland Ma, MA | Local | 6 | 2023 | $9,500 |
| Stevenson Fam Charitable Tr Stevenson Howard Ttee | | Cambridge, MA | Local | 5 | 2022 | $51,600 |
| Trust for Public Land | | San Francisco, CA | National | 1 | 2022 | $26,000 |
| Rmw Foundation | | Saint Paul, MN | Local | 4 | 2022 | $8,000 |
| John T and Theresa D Cederholm Foundation Uta 07142005 | | Marion, MA | National | 3 | 2022 | $3,000 |
| King Spruce Company | | Boston, MA | Local | 1 | 2022 | $1,000 |
| Westminster Barrington Foundation | | Wilmington, DE | National | 1 | 2022 | $1,000 |
| The Grantham Foundation for the Protection of the Environment | | Boston, MA | National | 5 | 2021 | $465,000 |
| Onion Foundation | | Wayne, ME | Local | 2 | 2021 | $77,500 |
| Climateworks Foundation | | San Francisco, CA | National | 1 | 2021 | $20,000 |
| Barnstone Foundation Inc | | Southeastern, PA | Local | 1 | 2021 | $17,000 |
| Orchard Foundation | | Boston, MA | National | 2 | 2021 | $17,000 |
| The John Merck Fund | | | — | 1 | 2021 | $10,000 |
| Will J Reid Foundation | | Long Beach, CA | Local | 1 | 2021 | $10,000 |
| The Compass Fund 4737682 | | Kingston, NH | Local | 3 | 2021 | $10,000 |
| Summer Hill Foundation | | Madison, CT | National | 2 | 2020 | $250,000 |
| Nion Robert Thieriot Foundation | | Elk Mountain, WY | Local | 3 | 2020 | $105,000 |
| Whitehead Foundation Inc | | Lenox, MA | National | 3 | 2020 | $75,000 |
| Lovett-Woodsum Family Charitable Foundation Inc | | Boston, MA | Local | 3 | 2020 | $50,000 |
| Geoffrey C Hughes Foundation Inc | | Wilmington, DE | National | 1 | 2020 | $50,000 |
| Gordon and Marjorie Osborne Foundation | | Boston, MA | Local | 1 | 2020 | $25,000 |
| Maine Coast Heritage Trust | | Topsham, ME | Local | 1 | 2020 | $15,000 |
| Fiduciary Charitable Foundation | | Boston, MA | National | 1 | 2020 | $6,000 |
| Ludes Family Foundation | | Marion, MA | Local | 1 | 2020 | $500 |
| Haven Trust | | Boston, MA | Local | 1 | 2020 | $500 |
| Rita and Leo Greenland Family Foundation | | Norwalk, CT | National | 2 | 2020 | $500 |
| William and Cynthia Marcus Family Charitable Trust | | Chestnut Hill, MA | Local | 3 | 2020 | $400 |
| Justin & Genevieve Wyner Trust | | | Local | 2 | 2020 | $80 |
| Lennox Foundation | | Wilmington, DE | National | 2 | 2019 | $200,000 |
| George H & Jane a Mifflin Memorial Fund | | Boston, MA | Local | 2 | 2019 | $50,000 |
| Fidelity Foundation | | Boston, MA | National | 1 | 2019 | $50,000 |
| Cricket Foundation U Instrument of Trust Dtd 102878 | | Boston, MA | — | 1 | 2019 | $10,000 |
| The Lebovitz Fund | | | National | 1 | 2019 | $550 |
| Horne Family Charitable Foundation Inc | | Boston, MA | National | 2 | 2018 | $20,000 |
| Maine Mountain Collaborative | | Portland, ME | Local | 1 | 2018 | $6,750 |
| Larsson-Danforth Family Foundation | | Mattapoisett, MA | Local | 1 | 2018 | $3,000 |
| Weld Foundation | | Boston, MA | National | 1 | 2018 | $3,000 |
| Thornton Family Foundation | | | — | 1 | 2018 | $500 |
| Stephen F Quill Family Foundation | | North Andover, MA | — | 1 | 2018 | $100 |
| John T and Jane a Wiederhold Foundation | | Torrington, CT | Local | 1 | 2017 | $57,000 |