| Zoological Society of Milwaukee County Endowment Tr | | Milwaukee, WI | Local | 8 | 2024 | $5,524,623 |
| Ladish Co Foundation | | Elm Grove, WI | Local | 4 | 2024 | $704,200 |
| Lynde and Harry Bradley Foundation Inc | | Milwaukee, WI | National | 4 | 2024 | $620,000 |
| Peck Foundation Milwaukee Ltd | | Milwaukee, WI | Local | 7 | 2024 | $433,650 |
| Woodland Park Zoological Society | | Seattle, WA | National | 4 | 2024 | $409,599 |
| Jerome J & Dorothy H Holz Fam Foundation 10192001 | | Milwaukee, WI | Local | 6 | 2024 | $315,000 |
| Nicholas Fam Foundation Tr | | Mequon, WI | Local | 7 | 2024 | $300,000 |
| West Bend Community Foundation Inc | | Milwaukee, WI | Local | 4 | 2024 | $174,511 |
| United Way of Greater Milwaukee & Waukesha County Inc | | Milwaukee, WI | Local | 7 | 2024 | $144,492 |
| Dudley and Constance Godfrey Foundation Inc | | New York, NY | Local | 5 | 2024 | $140,000 |
| Ralph Evinrude Foundation Inc | | Milwaukee, WI | Local | 8 | 2024 | $137,500 |
| Pearson Family Foundation | | Mequon, WI | Local | 5 | 2024 | $137,300 |
| Rosemann Family Foundation Inc | | Sister Bay, WI | Local | 6 | 2024 | $127,900 |
| Felburn Foundation | | Bethesda, MD | National | 2 | 2024 | $110,000 |
| Related Affordable Foundation Inc | | New York, NY | National | 3 | 2024 | $92,680 |
| Emory T Clark Family Charitable | | Milwaukee, WI | Local | 3 | 2024 | $65,000 |
| Harri Hoffmann Family Foundation Inc | | Milwaukee, WI | Local | 5 | 2024 | $62,500 |
| Vilter Foundation Inc | | Milwaukee, WI | Local | 8 | 2024 | $48,850 |
| Four-Four Foundation Inc | | New York, NY | Local | 5 | 2024 | $48,000 |
| Anon Charitable Tr | | Milwaukee, WI | Local | 4 | 2024 | $42,500 |
| Waukesha County Community Foundation Inc | | Waukesha, WI | Local | 2 | 2024 | $31,598 |
| National Center for Housing Management Inc | | Ponte Vedra, FL | Local | 2 | 2024 | $30,450 |
| Rockwell Automation Charitable Corporation | | Milwaukee, WI | Local | 2 | 2024 | $30,000 |
| Ros Foundation | | Greenfield, WI | Local | 2 | 2024 | $30,000 |
| Marjorie Siebert Aylen Foundation Inc | | Milwaukee, WI | Local | 1 | 2024 | $25,000 |
| Francie Luke Silverman Foundation Under the Francie Silverman | | Appleton, WI | Local | 3 | 2024 | $25,000 |
| Turek Charitable Tr | | New Berlin, WI | Local | 5 | 2024 | $22,650 |
| Derse Foundation Inc | | | Local | 1 | 2024 | $20,000 |
| Zurn Foundation Inc | | Milwaukee, WI | Local | 5 | 2024 | $19,000 |
| Rotary Club of Milwaukee Community Tr | | Milwaukee, WI | Local | 1 | 2024 | $17,500 |
| Kolaga Family Charitable Trust | | Brookfield, WI | Local | 7 | 2024 | $17,000 |
| Generac Foundation Inc | | Waukesha, WI | Local | 2 | 2024 | $15,000 |
| Madison Community Foundation | | Madison, WI | Local | 2 | 2024 | $11,500 |
| Herbert and Fern Elliott Family Foundation Inc | | Fox Point, WI | Local | 7 | 2024 | $10,500 |
| Wispact Inc | | Madison, WI | Local | 1 | 2024 | $10,000 |
| Annex Charitable Foundation Inc | | Brookfield, WI | Local | 6 | 2024 | $9,600 |
| Foster Family Foundation Irrv Tr | | Thiensville, WI | Local | 5 | 2024 | $8,000 |
| Community Foundation Inc | | Brookfield, WI | Local | 6 | 2024 | $6,500 |
| Foundation for Sustainability and Innovation | | Laguna Beach, CA | National | 1 | 2024 | $5,000 |
| Usinger Foundation Inc | | Milwaukee, WI | Local | 5 | 2024 | $5,000 |
| Youth Foundation Inc | | Milwaukee, WI | Local | 3 | 2024 | $2,441 |
| Weyco Group Charitable Trust | | Glendale, WI | Local | 2 | 2024 | $1,995 |
| Ac Kootz Foundation | | Nashotah, WI | Local | 1 | 2024 | $750 |
| Ziegler Family Foundation Inc | | Brookfield, WI | National | 6 | 2023 | $33,000 |
| Anthony Petullo Foundation Inc | | Milwaukee, WI | Local | 6 | 2023 | $13,500 |
| Mars Family Foundation Inc | | Franklin, WI | Local | 1 | 2023 | $12,000 |
| Herbert H Kohl Charities Inc | | Milwaukee, WI | Local | 5 | 2023 | $9,000 |
| Telly Foundation Ltd | | Milwaukee, WI | Local | 6 | 2023 | $7,000 |
| Union Pacific Foundation | | Omaha, NE | National | 1 | 2023 | $5,000 |
| Arthur C Kootz Foundation C/O William Clyde Surles | | | Local | 4 | 2023 | $2,568 |
| Keyes Charitable Trust 23-48964 | | Austin, TX | National | 4 | 2023 | $2,000 |
| Maihaugen Foundation Inc | | LA Crosse, WI | Local | 1 | 2023 | $1,500 |
| Siebert Lutheran Foundation Inc | | Milwaukee, WI | Local | 1 | 2023 | $100 |
| Marcus Corporation Foundation Inc | | Milwaukee, WI | Local | 3 | 2022 | $60,000 |
| Theodore W Batterman Family Foundation Inc | | Milwaukee, WI | Local | 3 | 2022 | $55,018 |
| Kim and John Schlifske Family Foundation Inc | | Elm Grove, WI | Local | 1 | 2022 | $50,000 |
| Schoenleber Foundation Inc | | Milwaukee, WI | Local | 3 | 2022 | $40,000 |
| Green Bay Packers Foundation | | Green Bay, WI | Local | 1 | 2022 | $4,000 |
| Lff Foundation | | Milwaukee, WI | National | 2 | 2022 | $2,000 |
| Windhover Foundation Inc | | Wilmington, DE | Local | 1 | 2022 | $1,000 |
| Alvin & Marion Birnschein Foundation | | Milwaukee, WI | Local | 4 | 2021 | $90,000 |
| John and Carolyn Peterson Foundation Inc | | Brookfield, WI | National | 2 | 2021 | $46,000 |
| Wagner-Essman Care Foundation Inc | | Burlington, WI | Local | 3 | 2021 | $43,400 |
| Dohmen Company Foundation Inc | | Milwaukee, WI | Local | 2 | 2021 | $20,000 |
| Sensient Technologies Foundation Inc | | Milwaukee, WI | Local | 2 | 2021 | $20,000 |
| Fitzsimonds Charitable Trust | | Milwaukee, WI | Local | 2 | 2021 | $15,000 |
| John Oster Family Foundation Inc | | Milwaukee, WI | Local | 4 | 2021 | $4,000 |
| Dorothy Inbusch Foundation Inc | | Milwaukee, WI | Local | 1 | 2021 | $4,000 |
| Hauske Family Foundation Inc | | Milwaukee, WI | Local | 3 | 2020 | $250,000 |
| Evan & Marion Helfaer Foundation 32 0393 00 2 | | Elm Grove, WI | Local | 2 | 2020 | $112,500 |
| Bert L and Patricia S Steigleder Charitable Trust | | Milwaukee, WI | Local | 3 | 2020 | $60,000 |
| National Geographic Society | | Washington, DC | — | 1 | 2020 | $38,354 |
| M3 Insurance Foundation Inc | | Madison, WI | Local | 2 | 2020 | $5,000 |
| Sadoff Family Foundation Co Gary Sadoff Badger Liquor Company | | | — | 2 | 2019 | $170,000 |
| Harley Davidson Foundation Inc | | Milwaukee, WI | Local | 2 | 2019 | $20,700 |
| Mcginnity Family Foundation Inc | | Milwaukee, WI | National | 1 | 2019 | $745 |
| Margaret a Cargill Foundation | | Eden Prairie, MN | National | 1 | 2018 | $115,023 |
| Briggs & Stratton Corporation Foundation Inc | | | — | 2 | 2018 | $6,800 |
| Latham Foundation for the Promotion of Humane Education | | Poway, CA | National | 1 | 2018 | $2,500 |
| Stratton Foundation Inc | | | — | 1 | 2018 | $2,500 |
| Lieberman Jay M & Joan K Charitable Fund | | Longboat Key, FL | National | 1 | 2018 | $140 |
| Jacksonville Zoological Society Inc | | Jacksonville, FL | National | 1 | 2017 | $10,000 |