| David Scott | American Council of Engineering Companies | Supporting | GA86 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Supporting | GA86 |
| Scott Newhard | Associated General Contractors of Iowa | Supporting | GA86 |
| Bruce Rastetter | Board of Regents, State of Iowa | Opposing | GA86 |
| Joe Murphy | Board of Regents, State of Iowa | Opposing | GA86 |
| Katie Mulholland | Board of Regents, State of Iowa | Opposing | GA86 |
| Keith Saunders | Board of Regents, State of Iowa | Opposing | GA86 |
| Mary Braun | Board of Regents, State of Iowa | Opposing | GA86 |
| Robert Donley | Board of Regents, State of Iowa | Opposing | GA86 |
| Caleb Hunter | Department of Administrative Services (DAS) | Undecided | GA86 |
| James Piazza, Jr. | Heavy Highway Contractors Association | Opposing | GA86 |
| Jay Iverson | Home Builders Association of Iowa | Supporting | GA86 |
| Dane Schumann | IBEW Iowa State Conference | Opposing | GA86 |
| Emily Hockins | IBEW Iowa State Conference | Opposing | GA86 |
| Jake Oeth | IBEW Iowa State Conference | Opposing | GA86 |
| Kent Hartwig | IBEW Iowa State Conference | Opposing | GA86 |
| Threase Harms | IBEW Iowa State Conference | Opposing | GA86 |
| James Piazza, Jr. | International Union of Operating Engineers-Local 234 | Opposing | GA86 |
| Emily Piper | Iowa Association of School Boards | Opposing | GA86 |
| Phil Jeneary | Iowa Association of School Boards | Opposing | GA86 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Supporting | GA86 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Supporting | GA86 |
| Scott Sundstrom | Iowa Chapter, American Institute of Architects | Supporting | GA86 |
| Brice Oakley | Iowa Chapter, American Society of Landscape Architects | Supporting | GA86 |
| Don Avenson | Iowa Chapter, American Society of Landscape Architects | Supporting | GA86 |
| Tom Cope | Iowa Chapter, American Society of Landscape Architects | Supporting | GA86 |
| Doug Struyk | Iowa Competitive Bidding Alliance, Inc. | Supporting | GA86 |
| George Appleby | Iowa Competitive Bidding Alliance, Inc. | Supporting | GA86 |
| Jennifer Tyler | Iowa Competitive Bidding Alliance, Inc. | Supporting | GA86 |
| Jim Carney | Iowa Competitive Bidding Alliance, Inc. | Supporting | GA86 |
| Mikel Derby | Iowa Dept. of Transportation | Undecided | GA86 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA86 |
| Brad Epperly | Iowa Newspaper Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Newspaper Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Newspaper Association | Undecided | GA86 |
| tom fey | Iowa State Building and Construction Trades Council | Opposing | GA86 |
| Erich Schmidt | Laborers International Union of North America | Opposing | GA86 |
| Chad Kleppe | Master Builders of Iowa | Opposing | GA86 |
| Brian Johnson | Mechanical Contractors Association of Iowa (MCAI) | Opposing | GA86 |
| Craig Walter | Mechanical Contractors Association of Iowa (MCAI) | Opposing | GA86 |
| Brian Johnson | NECA - Iowa (NEC) | Opposing | GA86 |
| Craig Walter | NECA - Iowa (NEC) | Opposing | GA86 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Opposing | GA86 |
| Chris Smith | SMART Sheet Metal Local 45 | Opposing | GA86 |
| Chris Smith | SMART Sheet Metal Local 91 | Opposing | GA86 |