| Drew Kamp | Ames Chamber of Commerce | Undecided | GA87 |
| Bruce Rastetter | Board of Regents, State of Iowa | Undecided | GA87 |
| Katie Mulholland | Board of Regents, State of Iowa | Undecided | GA87 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA87 |
| Kristin Failor | Board of Regents, State of Iowa | Undecided | GA87 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA87 |
| Robert Donley | Board of Regents, State of Iowa | Undecided | GA87 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA87 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA87 |
| Dustin Miller | Greater Des Moines Partnership | Undecided | GA87 |
| Joe Murphy | Greater Des Moines Partnership | Undecided | GA87 |
| Paige Thorson | Greater Des Moines Partnership | Undecided | GA87 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA87 |
| Connor Slack | IBEW Iowa State Conference | Supporting | GA87 |
| Dane Schumann | IBEW Iowa State Conference | Supporting | GA87 |
| Emily Hockins | IBEW Iowa State Conference | Supporting | GA87 |
| Threase Harms | IBEW Iowa State Conference | Supporting | GA87 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Opposing | GA87 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Opposing | GA87 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Opposing | GA87 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Opposing | GA87 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA87 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA87 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA87 |
| Paige Thorson | Iowa Chamber Alliance | Undecided | GA87 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA87 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Dustin Miller | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Paige Thorson | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Doug Struyk | Iowa Competitive Bidding Alliance, Inc. | Opposing | GA87 |
| Jim Carney | Iowa Competitive Bidding Alliance, Inc. | Opposing | GA87 |
| Shannon Henson | Iowa Competitive Bidding Alliance, Inc. | Opposing | GA87 |
| Angela Davis | Iowa Lumber Association | Undecided | GA87 |
| Bill Wimmer | Iowa Lumber Association | Undecided | GA87 |
| tom fey | Iowa State Building and Construction Trades Council | Supporting | GA87 |
| tom fey | Iowa State Building and Construction Trades Council | Withdrawn | GA87 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Supporting | GA87 |
| Chris Smith | SMART Sheet Metal Local 263 | Supporting | GA87 |
| Chris Smith | SMART Sheet Metal Local 45 | Supporting | GA87 |
| Chris Smith | SMART Sheet Metal Local 91 | Supporting | GA87 |