| Charles Stewart Mott Foundation | | Flint, MI | Local | 5 | 2024 | $575,000 |
| Greenstate Credit Union | | | Local | 6 | 2024 | $171,500 |
| Community Foundation of Johnson | | Coralville, IA | Local | 8 | 2024 | $85,355 |
| Robert E Yager Charitable Tr | | Saint Paul, MN | Local | 4 | 2024 | $73,289 |
| Kenneth K Kinsey Family Foundation | | Iowa City, IA | Local | 7 | 2024 | $15,500 |
| Greater Cedar Rapids Community Foundation | | Cedar Rapids, IA | Local | 2 | 2024 | $12,103 |
| West Family Foundation | | Coralville, IA | Local | 1 | 2024 | $10,000 |
| Cla Foundation | | Minneapolis, MN | National | 1 | 2024 | $8,000 |
| Gary a Wicklund Family Foundation | | Coralville, IA | Local | 5 | 2024 | $1,200 |
| Roy J Carver Charitable Tr | | Muscatine, IA | Local | 1 | 2023 | $10,000 |
| Hodge Family Foundation | | Iowa City, IA | Local | 1 | 2022 | $500 |
| Variety the Childrens Charity of Iowa | | Des Moines, IA | Local | 1 | 2021 | $13,000 |
| STEM Next Opportunity Fund | | San Diego, CA | — | 1 | 2020 | $55,000 |
| Salzwedel Family Fund Ltd | | Madison, WI | Local | 1 | 2020 | $10,000 |
| The Fountain Charitable Foundation | | Kalona, IA | National | 1 | 2019 | $100 |
| Rotary District 6000 Humanitarian and Educational Foundation Inc | | Pella, IA | Local | 1 | 2018 | $25,536 |
| Foundation for Advancing Technology and Community Giving | | | — | 1 | 2018 | $1,664 |