| Katie Rock | Center for Rural Affairs | Undecided | GA88 |
| Dawn Carlson | FUELIowa (PMCI) | Undecided | GA88 |
| Kellie Paschke | FUELIowa (PMCI) | Undecided | GA88 |
| Troy Skinner | FUELIowa (PMCI) | Undecided | GA88 |
| Mona Bond | Iowa Alliance of Environmental Concerns | Undecided | GA88 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Drew Wynes | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA88 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA88 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA88 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA88 |
| Jake Swanson | Iowa Dept. of Agriculture | Supporting | GA88 |
| Adam Schnieders | Iowa Dept. of Natural Resources | Undecided | GA88 |
| John Torbert | Iowa Drainage District Association | Supporting | GA88 |
| Mona Bond | Iowa Drainage District Association | Supporting | GA88 |
| Dane Schumann | Iowa Environmental Council | Undecided | GA88 |
| Maddie Wilcox | Iowa Environmental Council | Undecided | GA88 |
| Threase Harms | Iowa Environmental Council | Undecided | GA88 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA88 |
| Maddie Wilcox | Iowa Farmers Union | Undecided | GA88 |
| Threase Harms | Iowa Farmers Union | Undecided | GA88 |
| Bobby Martens | Iowa Institute for Cooperatives | Supporting | GA88 |
| Katie Hall | Iowa Institute for Cooperatives | Supporting | GA88 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Dane Schumann | Iowa Rivers Revival | Undecided | GA88 |
| Maddie Wilcox | Iowa Rivers Revival | Undecided | GA88 |
| Threase Harms | Iowa Rivers Revival | Undecided | GA88 |
| Kate Walton | Iowa Wine Growers Association | Undecided | GA88 |
| Matt Eide | Iowa Wine Growers Association | Undecided | GA88 |
| Jon Murphy | Koch Companies Public Sector, LLC and Affiliates | Undecided | GA88 |
| Tom Cope | Koch Companies Public Sector, LLC and Affiliates | Undecided | GA88 |
| Kate Walton | POET, LLC | Undecided | GA88 |
| Matt Eide | POET, LLC | Undecided | GA88 |
| Emily Piper | Rathbun Regional Water Association | Undecided | GA88 |
| Steven Schoenebaum | Syngenta Crop Protection | Undecided | GA88 |