| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA89 |
| Emilee Harris-Puricelli | Des Moines Water Works | Undecided | GA89 |
| Nick Laning | Des Moines Water Works | Undecided | GA89 |
| Threase Harms | Des Moines Water Works | Undecided | GA89 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA89 |
| John Davis | Iowa Association of Business and Industry (ABI) | Undecided | GA89 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA89 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA89 |
| Steffi Lee | Iowa Association of Business and Industry (ABI) | Undecided | GA89 |
| Julie Smith | Iowa Association of Water Agencies | Undecided | GA89 |
| Doug Struyk | Iowa Drainage District Association | Undecided | GA89 |
| Jennifer Dorman | Iowa Drainage District Association | Undecided | GA89 |
| Jim Carney | Iowa Drainage District Association | Undecided | GA89 |
| John Torbert | Iowa Drainage District Association | Undecided | GA89 |
| Mona Bond | Iowa Drainage District Association | Undecided | GA89 |
| Chip Baltimore | Iowa Environmental Council | Undecided | GA89 |
| Emilee Harris-Puricelli | Iowa Farmers Union | Undecided | GA89 |
| Nick Laning | Iowa Farmers Union | Undecided | GA89 |
| Threase Harms | Iowa Farmers Union | Undecided | GA89 |
| Brad Epperly | Iowa Newspaper Association | Opposing | GA89 |
| Dustin Miller | Iowa Newspaper Association | Opposing | GA89 |
| Emily Piper | Iowa Rural Water Association | Undecided | GA89 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA89 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA89 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA89 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Gary Grant | Urban County Coalition | Undecided | GA89 |
| Larry Murphy | Urban County Coalition | Undecided | GA89 |
| Meghan Malloy | Urban County Coalition | Undecided | GA89 |