| David Scott | American Council of Engineering Companies | Undecided | GA91 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Undecided | GA91 |
| Brad Epperly | City of Marion | Undecided | GA91 |
| Casey Nickel | City of Marion | Undecided | GA91 |
| Dustin Miller | City of Marion | Undecided | GA91 |
| Nick Laning | IBEW Iowa State Conference | Opposing | GA91 |
| Threase Harms | IBEW Iowa State Conference | Opposing | GA91 |
| David Peck | Iowa Association of Municipal Utilities | Supporting | GA91 |
| Marc Beltrame | Iowa Association of Municipal Utilities | Supporting | GA91 |
| Briana Kouma | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Jon Murphy | Iowa State Building and Construction Trades | Undecided | GA91 |
| Tom Cope | Iowa State Building and Construction Trades | Undecided | GA91 |
| Doug Struyk | LS Power Grid Midcontinent, LLC | Undecided | GA91 |
| Jennifer Dorman | LS Power Grid Midcontinent, LLC | Undecided | GA91 |
| Jim Carney | LS Power Grid Midcontinent, LLC | Undecided | GA91 |
| Kellie Paschke | Marion County Board of Supervisors | Undecided | GA91 |
| Ben Hammes | Master Builders of Iowa | Undecided | GA91 |
| Logan Shine | Master Builders of Iowa | Undecided | GA91 |
| Dane Schumann | Mid-American Carpenters Regional Council | Undecided | GA91 |
| Ben Gentz | Missouri River Energy Services | Supporting | GA91 |
| Clair Lewis | Missouri River Energy Services | Supporting | GA91 |
| Kate Walton | Missouri River Energy Services | Supporting | GA91 |
| Matt Eide | Missouri River Energy Services | Supporting | GA91 |