| Ted Stopulos | Alliant Energy Corporation | Undecided | GA89 |
| Tony Phillips | Black Hills Energy | Undecided | GA89 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA89 |
| Nick Laning | IBEW Iowa State Conference | Undecided | GA89 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA89 |
| Todd Schulz | ITC Midwest | Undecided | GA89 |
| Andy Conlin | Invenergy | 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 |
| Alex Cutchey | Iowa Association of Municipal Utilities | Supporting | GA89 |
| Brad Epperly | Iowa Business Energy Coalition (IBEC) | Undecided | GA89 |
| Dustin Miller | Iowa Business Energy Coalition (IBEC) | Undecided | GA89 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA89 |
| Alan Kemp | Iowa League of Cities | Undecided | GA89 |
| Daniel Stalder | Iowa League of Cities | Undecided | GA89 |
| Robert Palmer | Iowa League of Cities | Undecided | GA89 |
| Geri Huser | Iowa Utilities Board | Undecided | GA89 |
| Louis Vander Streek | Iowa Utilities Board | Undecided | GA89 |
| Maison Bleam | Iowa Utilities Board | Undecided | GA89 |
| Onnalee Gettler | MidAmerican Energy Company | Undecided | GA89 |
| Kate Walton | Missouri River Energy Services | Supporting | GA89 |
| Madeleine Bradley | Missouri River Energy Services | Supporting | GA89 |
| Matt Eide | Missouri River Energy Services | Supporting | GA89 |
| Julie Smith | Nebraska Municipal Power Pool - NMPP Energy | Supporting | GA89 |
| Jennifer Easler | Office of Consumer Advocate | Opposing | GA89 |
| Jennifer Easler | Office of Consumer Advocate | Withdrawn | GA89 |
| Jennifer Easler | Office of Consumer Advocate | Undecided | GA89 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA89 |