| Brian Guillaume | AFSCME Iowa Council 61 | Opposing | GA85 |
| Joe Nehring | AFSCME Iowa Council 61 | Opposing | GA85 |
| Marcia Nichols | AFSCME Iowa Council 61 | Opposing | GA85 |
| Morgan Miller | AFSCME Iowa Council 61 | Opposing | GA85 |
| Drew Klein | Americans For Prosperity | Supporting | GA85 |
| Christopher Schwartz | Americans for Democratic Action | Opposing | GA85 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Supporting | GA85 |
| Bruce Rastetter | Board of Regents, State of Iowa | Undecided | GA85 |
| Craig Lang | Board of Regents, State of Iowa | Undecided | GA85 |
| Jeneane Beck | Board of Regents, State of Iowa | Undecided | GA85 |
| Joe Murphy | Board of Regents, State of Iowa | Undecided | GA85 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA85 |
| Robert Donley | Board of Regents, State of Iowa | Undecided | GA85 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Opposing | GA85 |
| Midge Slater | Communications Workers of America Iowa State Council | Opposing | GA85 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA85 |
| Matt Hinch | Greater Des Moines Partnership | Undecided | GA85 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA85 |
| Scott Sundstrom | Greater Des Moines Partnership | Undecided | GA85 |
| Dane Schumann | IBEW Iowa State Conference | Opposing | GA85 |
| Kent Hartwig | IBEW Iowa State Conference | Opposing | GA85 |
| Threase Harms | IBEW Iowa State Conference | Opposing | GA85 |
| James Piazza, Jr. | International Union of Operating Engineers-Local 234 | Opposing | GA85 |
| Kevin Condon | Iowa Association of Business and Industry (ABI) | Supporting | GA85 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA85 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA85 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA85 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA85 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA85 |
| Scott Sundstrom | Iowa Chamber Alliance | Undecided | GA85 |
| Francis Driscoll | Iowa Citizen Action Network (ICAN) | Opposing | GA85 |
| Adam Mason | Iowa Citizens for Community Improvement Action Fund | Opposing | GA85 |
| Ben Murry | Iowa Federation of Labor, AFL-CIO | Opposing | GA85 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA85 |
| Jessica Hyland | Iowa Insurance Institute | Undecided | GA85 |
| Katherine Carlucci | Iowa Insurance Institute | Undecided | GA85 |
| Stephen Morain | Iowa Insurance Institute | Undecided | GA85 |
| Thomas Stanberry | Iowa Insurance Institute | Undecided | GA85 |
| John Cacciatore | Iowa Professional Fire Fighters | Opposing | GA85 |
| Justin Hupfer | Iowa Professional Fire Fighters | Opposing | GA85 |
| tom fey | Iowa State Building and Construction Trades Council | Opposing | GA85 |
| Brad Hudson | Iowa State Education Association | Opposing | GA85 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA85 |
| James Piazza, Jr. | Laborers International Union of North America | Opposing | GA85 |
| Chad Kleppe | Master Builders of Iowa | Supporting | GA85 |
| Marc Beltrame | Master Builders of Iowa | Supporting | GA85 |
| Matt McKinney | Master Builders of Iowa | Supporting | GA85 |
| Kristin Failor | National Federation of Independent Business (NFIB /IA) | Supporting | GA85 |
| Kevin Hilton | North Central States Regional Council of Carpenters | Opposing | GA85 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Opposing | GA85 |
| Justin Hupfer | Plumbers and Steam Fitters Local 33 | Opposing | GA85 |
| Jim Hawkins | Professional Educators of Iowa | Supporting | GA85 |
| Rob Gray | Professional Educators of Iowa | Supporting | GA85 |
| Bernard Murphy | Road Sprinkler Fitters Local 669 U.A. | Opposing | GA85 |
| Mark Cooper | South Central Iowa Federation of Labor AFL-CIO | Opposing | GA85 |
| John Cacciatore | State Police Officers Council | Opposing | GA85 |
| Justin Hupfer | State Police Officers Council | Opposing | GA85 |
| Jim Obradovich | United Professionals/UE | Opposing | GA85 |
| Christopher Schwartz | Working Families Win | Opposing | GA85 |