| Julie Vande Hoef | Alliant Energy Corporation | Undecided | GA87 |
| John Pederson | Alter Trading Corporation | Undecided | GA87 |
| Matt Eide | Alter Trading Corporation | Undecided | GA87 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA87 |
| Dustin Miller | BNSF Railway Co. | Undecided | GA87 |
| Paige Thorson | BNSF Railway Co. | Undecided | GA87 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA87 |
| John Pederson | CN Rail | Undecided | GA87 |
| Matt Eide | CN Rail | Undecided | GA87 |
| Brad Epperly | Eastlake Partnership | Undecided | GA87 |
| Dustin Miller | Eastlake Partnership | Undecided | GA87 |
| Paige Thorson | Eastlake Partnership | Undecided | GA87 |
| Paula Dierenfeld | Eastlake Partnership | Undecided | GA87 |
| Eric Goranson | Greater Iowa Apartment Association | Supporting | GA87 |
| Karla Fultz McHenry | Greater Iowa Apartment Association | Supporting | GA87 |
| Michael Triplett | Greater Iowa Apartment Association | Supporting | GA87 |
| Bob Skow | Independent Insurance Agents of Iowa | Undecided | GA87 |
| Larry Blixt | Independent Insurance Agents of Iowa | Undecided | GA87 |
| Angela Davis | Iowa Association for Justice | Undecided | GA87 |
| Bill Wimmer | Iowa Association for Justice | Undecided | GA87 |
| Brad Lint | Iowa Association for Justice | Undecided | GA87 |
| Lisa Davis-Cook | Iowa Association for Justice | Undecided | GA87 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA87 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Undecided | GA87 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA87 |
| Paige Thorson | Iowa Association of Electric Cooperatives | Undecided | GA87 |
| Paula Dierenfeld | Iowa Association of Electric Cooperatives | Undecided | GA87 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA87 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA87 |
| Joe Kelly | Iowa Manufactured Housing Association | Supporting | GA87 |
| Joe Kelly | Iowa Manufactured Housing Association | Undecided | GA87 |
| Gary Grant | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA87 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA87 |
| Jim Obradovich | Iowa Public Airports Association | Supporting | GA87 |
| Jim Obradovich | Iowa Shortline and Regional Railroad Association | Supporting | GA87 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA87 |
| Jim Carney | Iowa State Bar Association | Undecided | GA87 |
| Shannon Henson | Iowa State Bar Association | Undecided | GA87 |
| Joe Kelly | Landlords of Iowa | Supporting | GA87 |
| Joe Kelly | Landlords of Iowa | Undecided | GA87 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA87 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA87 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA87 |
| Chad Kleppe | Master Builders of Iowa | Supporting | GA87 |
| Frederick Haskins | Patterson Law Firm LLP | Undecided | GA87 |
| David Scott | Society of Land Surveyors of Iowa | Undecided | GA87 |
| Eric Goranson | Union Pacific Railroad | Supporting | GA87 |
| Karla Fultz McHenry | Union Pacific Railroad | Supporting | GA87 |
| Michael Triplett | Union Pacific Railroad | Supporting | GA87 |
| Michael Triplett | Union Pacific Railroad | Undecided | GA87 |