| Terry Harrmann | Alliant Energy Corporation | Undecided | GA85 |
| David Scott | American Council of Engineering Companies | Undecided | GA85 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Supporting | GA85 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Undecided | GA85 |
| Scott Newhard | Associated General Contractors of Iowa | Undecided | GA85 |
| Susan Walter | Black Hills Energy | Undecided | GA85 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Undecided | GA85 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA85 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA85 |
| Scott Sundstrom | Greater Des Moines Partnership | Undecided | GA85 |
| James Piazza, Jr. | Heavy Highway Contractors Association | Supporting | GA85 |
| Angela Davis | Home Builders Association of Iowa | Undecided | GA85 |
| Bill Wimmer | Home Builders Association of Iowa | Undecided | GA85 |
| Jim Obradovich | Hubbell Realty Company | Undecided | GA85 |
| Courtney Willits | IBEW Iowa State Conference | Supporting | GA85 |
| Kent Hartwig | IBEW Iowa State Conference | Supporting | GA85 |
| Threase Harms | IBEW Iowa State Conference | Supporting | GA85 |
| Michael Triplett | Iowa Alliance of Surety Companies | Undecided | GA85 |
| Angela Davis | Iowa Association for Justice | Opposing | GA85 |
| Bill Wimmer | Iowa Association for Justice | Opposing | GA85 |
| Brad Lint | Iowa Association for Justice | Opposing | GA85 |
| Lisa Davis-Cook | Iowa Association for Justice | Opposing | GA85 |
| Kevin Condon | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Tim Coonan | Iowa Association of Electric Cooperatives | Undecided | GA85 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA85 |
| William Brauch | Iowa Attorney General Dept. of Justice | Undecided | GA85 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA85 |
| Sharon Presnall | Iowa Bankers Association | Undecided | 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 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Opposing | GA85 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Undecided | GA85 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Opposing | GA85 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Undecided | GA85 |
| Scott Sundstrom | Iowa Chapter, American Institute of Architects | Opposing | GA85 |
| Scott Sundstrom | Iowa Chapter, American Institute of Architects | Undecided | GA85 |
| Doug Struyk | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA85 |
| George Appleby | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA85 |
| Jennifer Tyler | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA85 |
| Jim Carney | Iowa Competitive Bidding Alliance, Inc. | Undecided | GA85 |
| Brad Epperly | Iowa Defense Counsel Association | Undecided | GA85 |
| Paula Dierenfeld | Iowa Defense Counsel Association | Undecided | GA85 |
| Scott Sundstrom | Iowa Defense Counsel Association | Undecided | GA85 |
| David Scott | Iowa Engineering Society | Undecided | GA85 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Undecided | GA85 |
| Emily Piper | Iowa Rural Water Association | Undecided | GA85 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA85 |
| George Appleby | Iowa State Bar Association | Undecided | GA85 |
| Jennifer Tyler | Iowa State Bar Association | Undecided | GA85 |
| Jim Carney | Iowa State Bar Association | Undecided | GA85 |
| tom fey | Iowa State Building and Construction Trades Council | Undecided | GA85 |
| Mona Bond | Manatts Inc. | Undecided | GA85 |
| Chad Kleppe | Master Builders of Iowa | Undecided | GA85 |
| Marc Beltrame | Master Builders of Iowa | Undecided | GA85 |
| Matt McKinney | Master Builders of Iowa | Undecided | GA85 |
| Brian Johnson | Mechanical Contractors Association of Iowa (MCAI) | Supporting | GA85 |
| Brian Johnson | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA85 |
| John Davis | MidAmerican Energy Company | Undecided | GA85 |
| John Davis | MidAmerican Energy Company | Supporting | GA85 |
| Brian Johnson | NECA - Iowa (NEC) | Supporting | GA85 |
| Brian Johnson | NECA - Iowa (NEC) | Undecided | GA85 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Supporting | GA85 |
| Jon Murphy | Plumbers and Steam Fitters Local 33 | Supporting | GA85 |
| Justin Hupfer | Plumbers and Steam Fitters Local 33 | Supporting | GA85 |
| Mary Earnhardt | Plumbers and Steam Fitters Local 33 | Supporting | GA85 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA85 |
| David Adelman | Sheet Metal Contractors of Iowa | Supporting | GA85 |
| Mark Cooper | South Central Iowa Federation of Labor AFL-CIO | Undecided | GA85 |