| Julie Vande Hoef | Alliant Energy Corporation | Undecided | GA89 |
| Ted Stopulos | Alliant Energy Corporation | Undecided | GA89 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Undecided | GA89 |
| Jay Iverson | Home Builders Association of Iowa | Opposing | GA89 |
| Nick Laning | IBEW Iowa State Conference | Undecided | GA89 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA89 |
| Jim Obradovich | Iowa Association of Building Officials | Undecided | GA89 |
| Robert Mulqueen | Iowa Association of Building Officials | Undecided | GA89 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA89 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA89 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Undecided | GA89 |
| Angela Davis | Iowa Lumber Association | Opposing | GA89 |
| Sydney Gangestad | Iowa Propane Gas Association | Undecided | GA89 |
| Tim Coonan | Iowa Propane Gas Association | Undecided | GA89 |
| Onnalee Gettler | MidAmerican Energy Company | Undecided | GA89 |
| Brian Johnson | NECA - Iowa (NEC) | Undecided | GA89 |
| Christopher Rants | NECA - Iowa (NEC) | Undecided | GA89 |
| Justin Hupfer | NECA - Iowa (NEC) | Undecided | GA89 |
| Jeff Smith | National Electrical Manufacturers Association (NEMA) | Supporting | GA89 |
| Maggie Smith-Fitzgerald | National Electrical Manufacturers Association (NEMA) | Supporting | GA89 |
| Matt Fitzgerald | National Electrical Manufacturers Association (NEMA) | Supporting | GA89 |