| 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 Triplett | Iowa Alliance of Surety Companies | 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 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA86 |
| Brad Epperly | Iowa Geothermal Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Geothermal Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Geothermal Association | 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 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Opposing | GA86 |
| Mark Cooper | South Central Iowa Federation of Labor AFL-CIO | Opposing | GA86 |