| Jeffrey Boeyink | Alliant Energy Corporation | Opposing | GA89 |
| Jeffrey Boeyink | Alliant Energy Corporation | Undecided | GA89 |
| Julie Vande Hoef | Alliant Energy Corporation | Opposing | GA89 |
| Julie Vande Hoef | Alliant Energy Corporation | Withdrawn | GA89 |
| Julie Vande Hoef | Alliant Energy Corporation | Undecided | GA89 |
| Taylor McDonald | Alliant Energy Corporation | Opposing | GA89 |
| Taylor McDonald | Alliant Energy Corporation | Undecided | GA89 |
| Tony Phillips | Black Hills Energy | Opposing | GA89 |
| Tony Phillips | Black Hills Energy | Undecided | GA89 |
| Jim Obradovich | Conservation Districts of Iowa | Undecided | GA89 |
| Robert Mulqueen | Conservation Districts of Iowa | Undecided | GA89 |
| BRITTANY LUMLEY | Energy Transfer | Opposing | GA89 |
| Charlotte Eby | Energy Transfer | Opposing | GA89 |
| Jeffrey Boeyink | Energy Transfer | Opposing | GA89 |
| Taylor McDonald | Energy Transfer | Opposing | GA89 |
| James Piazza, Jr. | Heavy Highway Contractors Association | Undecided | GA89 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Alex Cutchey | Iowa Association of Municipal Utilities | Opposing | GA89 |
| Alex Cutchey | Iowa Association of Municipal Utilities | Undecided | GA89 |
| Brad Epperly | Iowa Association of Municipal Utilities | Opposing | GA89 |
| Brad Epperly | Iowa Association of Municipal Utilities | Undecided | GA89 |
| Dustin Miller | Iowa Association of Municipal Utilities | Opposing | GA89 |
| Dustin Miller | Iowa Association of Municipal Utilities | Undecided | GA89 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA89 |
| Angela Davis | Iowa Environmental Council | Undecided | GA89 |
| Sydney Gangestad | Iowa Propane Gas Association | Undecided | GA89 |
| Tim Coonan | Iowa Propane Gas Association | Undecided | GA89 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA89 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA89 |
| Maison Bleam | Iowa Utilities Board | Undecided | GA89 |
| David Scott | Iowa Water Well Association | Undecided | GA89 |
| Jake Ketzner | KWIK Trip, Inc. | Undecided | GA89 |
| Larry Blixt | KWIK Trip, Inc. | Undecided | GA89 |
| Jon Murphy | Koch Companies Public Sector, LLC and Affiliates | Undecided | GA89 |
| Tom Cope | Koch Companies Public Sector, LLC and Affiliates | Undecided | GA89 |
| Dylan Gramlich | Laborers International Union of North America | Undecided | GA89 |
| Christopher Rants | Magellan Midstream Partners | Opposing | GA89 |
| John Cacciatore | Magellan Midstream Partners | Opposing | GA89 |
| David Adelman | MidAmerican Energy Company | Opposing | GA89 |
| Frank Chiodo | MidAmerican Energy Company | Opposing | GA89 |
| Matt Hinch | MidAmerican Energy Company | Opposing | GA89 |
| Onnalee Gettler | MidAmerican Energy Company | Opposing | GA89 |
| Sara Allen | MidAmerican Energy Company | Opposing | GA89 |
| Scott Newhard | MidAmerican Energy Company | Opposing | GA89 |
| Mike Heller | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA89 |
| Paula Feltner | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA89 |