| Terry Harrmann | Alliant Energy Corporation | Undecided | GA86 |
| Terry Harrmann | Alliant Energy Corporation | Withdrawn | GA86 |
| Terry Harrmann | Alliant Energy Corporation | Supporting | GA86 |
| Susan Walter | Black Hills Energy | Undecided | GA86 |
| Johnathan Hladik | Center for Rural Affairs | Opposing | GA86 |
| Jim Obradovich | Distributed Wind Energy Association of America | Opposing | GA86 |
| Pete McRoberts | Distributed Wind Energy Association of America | Opposing | GA86 |
| Josh Mandelbaum | Environmental Law and Policy Center | Opposing | GA86 |
| Steve Falck | Environmental Law and Policy Center | Opposing | GA86 |
| Matt Ohloff | Food & Water Watch | Opposing | GA86 |
| Angela Davis | Hy-Vee, Inc. | Undecided | GA86 |
| Bill Wimmer | Hy-Vee, Inc. | Undecided | GA86 |
| Todd Schulz | ITC Midwest | Undecided | GA86 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Myron Linn | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Paula Dierenfeld | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Scott Sundstrom | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Tim Coonan | Iowa Association of Electric Cooperatives | Undecided | 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 | Opposing | GA86 |
| Nathaniel Baer | Iowa Environmental Council | Opposing | GA86 |
| Eric Bradley | Iowa Environmental Health Association | Opposing | GA86 |
| Dane Schumann | Iowa Farmers Union | Opposing | GA86 |
| Angela Davis | Iowa Farmland, LLC | Undecided | GA86 |
| Bill Wimmer | Iowa Farmland, LLC | Undecided | GA86 |
| Susan Guy | Iowa Interfaith Power & Light | Opposing | GA86 |
| Jerry Fitzgerald | Iowa Pork Producers Association (IPP) | Opposing | GA86 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association (IPP) | Opposing | GA86 |
| Matt Fitzgerald | Iowa Pork Producers Association (IPP) | Opposing | GA86 |
| Tyler Bettin | Iowa Pork Producers Association (IPP) | Opposing | GA86 |
| Doug Struyk | Iowa Solar Energy Trade Association | Opposing | GA86 |
| Doug Struyk | Iowa Solar Energy Trade Association | Undecided | GA86 |
| George Appleby | Iowa Solar Energy Trade Association | Opposing | GA86 |
| George Appleby | Iowa Solar Energy Trade Association | Undecided | GA86 |
| Jennifer Tyler | Iowa Solar Energy Trade Association | Opposing | GA86 |
| Jennifer Tyler | Iowa Solar Energy Trade Association | Undecided | GA86 |
| Jim Carney | Iowa Solar Energy Trade Association | Opposing | GA86 |
| Jim Carney | Iowa Solar Energy Trade Association | Undecided | GA86 |
| Jill Altringer | Iowa Turkey Federation | Opposing | GA86 |
| Louis Vander Streek | Iowa Utilities Board | Undecided | GA86 |
| Daniel Evans | Iowa Utility Association | Undecided | GA86 |
| Mark Douglas | Iowa Utility Association | Undecided | 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 |
| Cody Carlson | The Alliance for Solar Choice | Opposing | GA86 |
| Jerry Fitzgerald | The Alliance for Solar Choice | Opposing | GA86 |
| Maggie Smith-Fitzgerald | The Alliance for Solar Choice | Opposing | GA86 |
| Matt Fitzgerald | The Alliance for Solar Choice | Opposing | GA86 |