| Terry Harrmann | Alliant Energy Corporation | Undecided | GA86 |
| Terry Harrmann | Alliant Energy Corporation | Withdrawn | GA86 |
| Terry Harrmann | Alliant Energy Corporation | Opposing | GA86 |
| Drew Klein | Americans For Prosperity | Undecided | GA86 |
| Susan Walter | Black Hills Energy | Undecided | GA86 |
| Josh Mandelbaum | Environmental Law and Policy Center | Undecided | GA86 |
| Steve Falck | Environmental Law and Policy Center | Undecided | GA86 |
| Angela Davis | Hy-Vee, Inc. | Undecided | GA86 |
| Bill Wimmer | Hy-Vee, Inc. | Undecided | GA86 |
| Dane Schumann | IBEW Iowa State Conference | Opposing | GA86 |
| Emily Hockins | IBEW Iowa State Conference | Opposing | GA86 |
| Threase Harms | IBEW Iowa State Conference | Opposing | GA86 |
| Todd Schulz | ITC Midwest | Undecided | GA86 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Gary Nims | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Marty Ryan | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Peggy Aguilar | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Rita Carter | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Sheila Corsbie | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Stephanie Fawkes-Lee | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Walden Paige | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| William Steward | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Opposing | GA86 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Opposing | GA86 |
| Myron Linn | Iowa Association of Business and Industry (ABI) | Opposing | GA86 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Opposing | GA86 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Opposing | GA86 |
| Paula Dierenfeld | Iowa Association of Electric Cooperatives | Opposing | GA86 |
| Scott Sundstrom | Iowa Association of Electric Cooperatives | Opposing | GA86 |
| Tim Coonan | Iowa Association of Electric Cooperatives | Opposing | GA86 |
| Timothy Whipple | Iowa Association of Municipal Utilities | Undecided | GA86 |
| Brad Epperly | Iowa Business Energy Coalition (IBEC) | Undecided | GA86 |
| Paula Dierenfeld | Iowa Business Energy Coalition (IBEC) | Undecided | GA86 |
| Scott Sundstrom | Iowa Business Energy Coalition (IBEC) | Undecided | GA86 |
| Neila Seaman | Iowa Chapter of Sierra Club | Undecided | GA86 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA86 |
| Emily Hockins | Iowa Farmers Union | Undecided | GA86 |
| Threase Harms | Iowa Farmers Union | Undecided | GA86 |
| Brad Epperly | Iowa Geothermal Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Geothermal Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Geothermal Association | Undecided | GA86 |
| Susan Guy | Iowa Interfaith Power & Light | Supporting | GA86 |
| Will Rogers | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA86 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA86 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA86 |
| Doug Struyk | Iowa Solar Energy Trade Association | Supporting | GA86 |
| George Appleby | Iowa Solar Energy Trade Association | Supporting | GA86 |
| Jennifer Tyler | Iowa Solar Energy Trade Association | Supporting | GA86 |
| Jim Carney | Iowa Solar Energy Trade Association | Supporting | GA86 |
| Louis Vander Streek | Iowa Utilities Board | Undecided | GA86 |
| Daniel Evans | Iowa Utility Association | Undecided | GA86 |
| Daniel Evans | Iowa Utility Association | Withdrawn | GA86 |
| Daniel Evans | Iowa Utility Association | Opposing | GA86 |
| Mark Douglas | Iowa Utility Association | Undecided | GA86 |
| Mark Douglas | Iowa Utility Association | Opposing | GA86 |
| Frank Chiodo | MidAmerican Energy Company | Undecided | GA86 |
| John Davis | MidAmerican Energy Company | Undecided | GA86 |
| Matt Hinch | MidAmerican Energy Company | Undecided | GA86 |
| Scott Newhard | MidAmerican Energy Company | Undecided | GA86 |
| John Pederson | Missouri River Energy Services | Undecided | GA86 |
| Kelly Nuckolls | Missouri River Energy Services | Undecided | GA86 |
| Matt Eide | Missouri River Energy Services | Undecided | GA86 |
| Julie Smith | Nebraska Municipal Power Pool - NMPP Energy | Undecided | GA86 |
| Terry Harrmann | Personal Interest-Terry Harrmann | Undecided | GA86 |
| Doug Struyk | The Nature Conservancy | Undecided | GA86 |
| George Appleby | The Nature Conservancy | Undecided | GA86 |
| Jennifer Tyler | The Nature Conservancy | Undecided | GA86 |
| Jim Carney | The Nature Conservancy | Undecided | GA86 |