| Ted Stopulos | Alliant Energy Corporation | Undecided | GA90 |
| Kate Hansen | Center for Rural Affairs | Supporting | GA90 |
| Mark Joyce | ITC Midwest | Undecided | GA90 |
| Todd Schulz | ITC Midwest | Undecided | GA90 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Opposing | GA90 |
| John Hirl | Iowa Association of Municipal Utilities | Opposing | GA90 |
| Marc Beltrame | Iowa Association of Municipal Utilities | Opposing | GA90 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA90 |
| Kelly Meyers | Iowa Cattlemen's Association | Undecided | GA90 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA90 |
| Chelsea Hoye | Iowa Environmental Council | Undecided | GA90 |
| Threase Harms | Iowa Environmental Council | Undecided | GA90 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Supporting | GA90 |
| Matt Gronewald | Iowa Farm Bureau Federation | Supporting | GA90 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Supporting | GA90 |
| Chelsea Hoye | Iowa Farmers Union | Supporting | GA90 |
| Threase Harms | Iowa Farmers Union | Supporting | GA90 |
| Geri Huser | Iowa Utilities Commission | Undecided | GA90 |
| Louis Vander Streek | Iowa Utilities Commission | Undecided | GA90 |
| Maison Bleam | Iowa Utilities Commission | Undecided | GA90 |
| David Adelman | MidAmerican Energy Company | Opposing | GA90 |
| Frank Chiodo | MidAmerican Energy Company | Opposing | GA90 |
| Lillie Brady | MidAmerican Energy Company | Opposing | GA90 |
| Matt Hinch | MidAmerican Energy Company | Opposing | GA90 |
| Onnalee Gettler | MidAmerican Energy Company | Opposing | GA90 |
| Sara Allen | MidAmerican Energy Company | Opposing | GA90 |
| Ben Gentz | Missouri River Energy Services | Opposing | GA90 |
| Ben Gentz | Missouri River Energy Services | Undecided | GA90 |
| Kate Walton | Missouri River Energy Services | Opposing | GA90 |
| Kate Walton | Missouri River Energy Services | Undecided | GA90 |
| Madeleine Bradley | Missouri River Energy Services | Opposing | GA90 |
| Madeleine Bradley | Missouri River Energy Services | Undecided | GA90 |
| Matt Eide | Missouri River Energy Services | Opposing | GA90 |
| Matt Eide | Missouri River Energy Services | Undecided | GA90 |