| Terry Harrmann | Alliant Energy Corporation | Undecided | GA86 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Opposing | GA86 |
| Jay Iverson | Home Builders Association of Iowa | Opposing | GA86 |
| Jay Iverson | Home Builders Association of Iowa | Undecided | GA86 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Rachel Geilenfeld | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Zach Dalluge | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Paula Dierenfeld | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Scott Sundstrom | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Tim Coonan | Iowa Association of Electric Cooperatives | 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 |
| Brad Epperly | Iowa Geothermal Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Geothermal Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Geothermal Association | Undecided | GA86 |
| Brad Epperly | Iowa Propane Gas Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Propane Gas Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Propane Gas Association | Undecided | GA86 |
| William Heckroth | Iowa State Association of County Supervisors | Undecided | GA86 |
| Mike St. Clair | Iowa State Building and Construction Trades Council | Opposing | GA86 |
| tom fey | Iowa State Building and Construction Trades Council | Opposing | GA86 |
| Brad Epperly | Iowa Water Well Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Water Well Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Water Well Association | Undecided | GA86 |
| Brian Johnson | Mechanical Contractors Association of Iowa (MCAI) | Opposing | GA86 |
| Craig Walter | Mechanical Contractors Association of Iowa (MCAI) | Opposing | GA86 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Opposing | GA86 |
| David Adelman | Sheet Metal Contractors of Iowa | Opposing | GA86 |