| Mike Rozenboom | 3M Company and its affiliates | Supporting | GA87 |
| Robert Weiser | 3M Company and its affiliates | Supporting | GA87 |
| Morgan Miller | AFSCME Iowa Council 61 | Opposing | GA87 |
| Bill Wimmer | Alamo Rent A Car | Undecided | GA87 |
| Mike Rozenboom | Annett Holdings | Supporting | GA87 |
| Robert Weiser | Annett Holdings | Supporting | GA87 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Supporting | GA87 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA87 |
| Dustin Miller | BNSF Railway Co. | Undecided | GA87 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA87 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA87 |
| Kristin Bauer | Board of Regents, State of Iowa | Undecided | GA87 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA87 |
| Mike Rozenboom | CRST International | Supporting | GA87 |
| Robert Weiser | CRST International | Supporting | GA87 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Opposing | GA87 |
| Bill Wimmer | Enterprise Rent-A-Car | Undecided | GA87 |
| Bill Wimmer | Hy-Vee, Inc. | Undecided | GA87 |
| Dane Schumann | IBEW Iowa State Conference | Opposing | GA87 |
| Dane Schumann | IBEW Iowa State Conference | Undecided | GA87 |
| Emily Hockins | IBEW Iowa State Conference | Opposing | GA87 |
| Emily Hockins | IBEW Iowa State Conference | Undecided | GA87 |
| Threase Harms | IBEW Iowa State Conference | Opposing | GA87 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA87 |
| Bob Skow | Independent Insurance Agents of Iowa | Undecided | GA87 |
| Larry Blixt | Independent Insurance Agents of Iowa | Undecided | GA87 |
| Thomas O'Meara | Independent Insurance Agents of Iowa | Undecided | GA87 |
| Thomas Jochum | International Union of Operating Engineers-Local 234 | Opposing | GA87 |
| Brad Lint | Iowa Association for Justice | Undecided | GA87 |
| Kellie Paschke | Iowa Association for Justice | Undecided | GA87 |
| Lisa Davis-Cook | Iowa Association for Justice | Undecided | GA87 |
| Troy Skinner | 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 |
| Paula Dierenfeld | Iowa Association of Electric Cooperatives | Undecided | GA87 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA87 |
| Dustin Miller | Iowa Automobile Dealers Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Automobile Dealers Association | Undecided | GA87 |
| Bill Wimmer | Iowa Beverage Association | Undecided | GA87 |
| Brad Epperly | Iowa Broadcasters Association | Undecided | GA87 |
| Dustin Miller | Iowa Broadcasters Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Broadcasters Association | Undecided | GA87 |
| Brad Epperly | Iowa Collectors Association, Inc. | Undecided | GA87 |
| Dustin Miller | Iowa Collectors Association, Inc. | Undecided | GA87 |
| Paula Dierenfeld | Iowa Collectors Association, Inc. | Undecided | GA87 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA87 |
| Larry Blixt | Iowa Greenhouse Growers Association | Undecided | GA87 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA87 |
| Dustin Miller | Iowa Grocery Industry Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Undecided | GA87 |
| Alan Kemp | Iowa League of Cities | Undecided | GA87 |
| Lindsey McCune | Iowa League of Cities | Undecided | GA87 |
| Robert Palmer | Iowa League of Cities | Undecided | GA87 |
| Bill Wimmer | Iowa Lumber Association | Undecided | GA87 |
| Brad Epperly | Iowa Newspaper Association | Undecided | GA87 |
| Dustin Miller | Iowa Newspaper Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Newspaper Association | Undecided | GA87 |
| Jim Henter | Iowa Retail Federation | Undecided | GA87 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA87 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA87 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA87 |
| William Peterson | Iowa State Association of Counties | Undecided | GA87 |
| Jamie Cashman | Iowa State Association of County Supervisors | Undecided | GA87 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Undecided | GA87 |
| Lucas Beenken | Iowa State Association of County Supervisors | Undecided | GA87 |
| William Peterson | Iowa State Association of County Supervisors | Undecided | GA87 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA87 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA87 |
| Jim Carney | Iowa State Bar Association | Undecided | GA87 |
| tom fey | Iowa State Building and Construction Trades Council | Opposing | GA87 |
| Larry Blixt | KWIK Trip, Inc. | Undecided | GA87 |
| Erich Schmidt | Laborers International Union of North America | Opposing | GA87 |
| Brian Johnson | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA87 |
| Craig Walter | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA87 |
| Brad Epperly | Monsanto Company | Undecided | GA87 |
| Dustin Miller | Monsanto Company | Undecided | GA87 |
| Brian Johnson | NECA - Iowa (NEC) | Undecided | GA87 |
| Craig Walter | NECA - Iowa (NEC) | Undecided | GA87 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Supporting | GA87 |
| Bill Wimmer | National Rent A Car | Undecided | GA87 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Opposing | GA87 |
| Steven Schoenebaum | Pattison Sand Company, L.L.C. | Undecided | GA87 |
| Christopher Rants | Plumbers and Steam Fitters Local 33 | Undecided | GA87 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Undecided | GA87 |
| Bill Wimmer | Q Casino, formerly Mystique Casino | Undecided | GA87 |
| Chris Smith | SMART Sheet Metal Local 45 | Opposing | GA87 |
| Chris Smith | SMART Sheet Metal Local 91 | Opposing | GA87 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA87 |
| Steven Schoenebaum | Syngenta Crop Protection | Undecided | GA87 |
| Jim Romar | Teamsters Local 238 | Opposing | GA87 |
| Mike Rozenboom | Trans Iowa | Supporting | GA87 |
| Robert Weiser | Trans Iowa | Supporting | GA87 |
| Brian Johnson | U.S. Cellular | Undecided | GA87 |