| Julie Vande Hoef | Alliant Energy Corporation | Undecided | GA88 |
| Katie Rock | Center for Rural Affairs | Withdrawn | GA88 |
| Katie Rock | Center for Rural Affairs | Undecided | GA88 |
| Cyndi Pederson | Central Iowa Power Cooperative (CIPCO) | Supporting | GA88 |
| John Pederson | Central Iowa Power Cooperative (CIPCO) | Supporting | GA88 |
| Alex Hassel | City of Des Moines | Opposing | GA88 |
| Doug Struyk | City of Des Moines | Opposing | GA88 |
| Jen Schulte | City of Des Moines | Opposing | GA88 |
| Jennifer Dorman | City of Des Moines | Opposing | GA88 |
| Jim Carney | City of Des Moines | Opposing | GA88 |
| Sydney Gangestad | City of West Des Moines | Opposing | GA88 |
| Tim Coonan | City of West Des Moines | Opposing | GA88 |
| Dane Schumann | Grow Clinton County | Undecided | GA88 |
| Maddie Wilcox | Grow Clinton County | Undecided | GA88 |
| Threase Harms | Grow Clinton County | Undecided | GA88 |
| Dane Schumann | IBEW Iowa State Conference | Supporting | GA88 |
| Dane Schumann | IBEW Iowa State Conference | Undecided | GA88 |
| Maddie Wilcox | IBEW Iowa State Conference | Supporting | GA88 |
| Maddie Wilcox | IBEW Iowa State Conference | Undecided | GA88 |
| Threase Harms | IBEW Iowa State Conference | Supporting | GA88 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA88 |
| Bob Rafferty | Iowa American Water Co. | Opposing | GA88 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Supporting | GA88 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Supporting | GA88 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Katie Graham | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Supporting | GA88 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Paula Dierenfeld | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Timothy Whipple | Iowa Association of Municipal Utilities | Supporting | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA88 |
| Jennifer Terry | Iowa Environmental Council | Undecided | GA88 |
| Jordan Oster | Iowa Environmental Council | Undecided | GA88 |
| Kerri Johannsen | Iowa Environmental Council | Undecided | GA88 |
| Alan Kemp | Iowa League of Cities | Opposing | GA88 |
| Daniel Stalder | Iowa League of Cities | Opposing | GA88 |
| Robert Palmer | Iowa League of Cities | Opposing | GA88 |
| Kate Walton | Missouri River Energy Services | Supporting | GA88 |
| Matt Eide | Missouri River Energy Services | Supporting | GA88 |
| Doug Struyk | Resale Power Group of Iowa | Undecided | GA88 |
| Jennifer Dorman | Resale Power Group of Iowa | Undecided | GA88 |
| Jim Carney | Resale Power Group of Iowa | Undecided | GA88 |
| Jake Ketzner | Urbandale Water Utility | Undecided | GA88 |
| Larry Blixt | Urbandale Water Utility | Undecided | GA88 |