| David Scott | American Council of Engineering Companies | Undecided | GA86 |
| Bruce Rastetter | Board of Regents, State of Iowa | Undecided | GA86 |
| Joe Murphy | Board of Regents, State of Iowa | Undecided | GA86 |
| Katie Mulholland | Board of Regents, State of Iowa | Undecided | GA86 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA86 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA86 |
| Robert Donley | Board of Regents, State of Iowa | Undecided | GA86 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA86 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Supporting | GA86 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA86 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA86 |
| Scott Sundstrom | Greater Des Moines Partnership | Undecided | GA86 |
| James Piazza, Jr. | Heavy Highway Contractors Association | Supporting | GA86 |
| Kent Hartwig | IBEW Iowa State Conference | Supporting | GA86 |
| Threase Harms | IBEW Iowa State Conference | Supporting | GA86 |
| James Piazza, Jr. | International Union of Operating Engineers-Local 234 | Supporting | GA86 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Opposing | GA86 |
| Rachel Geilenfeld | Iowa Association of Business and Industry (ABI) | Opposing | GA86 |
| Zach Dalluge | Iowa Association of Business and Industry (ABI) | Opposing | GA86 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA86 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA86 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA86 |
| Scott Sundstrom | Iowa Chamber Alliance | Undecided | GA86 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Undecided | GA86 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Undecided | GA86 |
| Scott Sundstrom | Iowa Chapter, American Institute of Architects | Undecided | GA86 |
| Doug Struyk | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA86 |
| George Appleby | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA86 |
| Jennifer Tyler | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA86 |
| Jim Carney | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA86 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Supporting | GA86 |
| tom fey | Iowa State Building and Construction Trades Council | Supporting | GA86 |
| Brad Hudson | Iowa State Education Association | Undecided | GA86 |
| Melissa Peterson | Iowa State Education Association | Undecided | GA86 |
| Chad Kleppe | Master Builders of Iowa | Opposing | GA86 |
| Brian Johnson | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA86 |
| Craig Walter | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA86 |
| Brian Johnson | NECA - Iowa (NEC) | Undecided | GA86 |
| Craig Walter | NECA - Iowa (NEC) | Undecided | GA86 |
| Kristin Failor | National Federation of Independent Business (NFIB /IA) | Opposing | GA86 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Supporting | GA86 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA86 |
| Craig Walter | Polk County - Board of Supervisors | Undecided | GA86 |
| Chris Smith | SMART Sheet Metal Local 45 | Supporting | GA86 |
| Chris Smith | SMART Sheet Metal Local 91 | Supporting | GA86 |
| Mark Cooper | South Central Iowa Federation of Labor AFL-CIO | Supporting | GA86 |
| Andrea Rivera | United Auto Workers | Supporting | GA86 |
| Jim Obradovich | United Professionals/UE | Supporting | GA86 |