| Paige Yontz | AARP Iowa | Opposing | GA91 |
| Dustin Rush | Americans For Prosperity | Opposing | GA91 |
| Tyler Raygor | Americans For Prosperity | Opposing | GA91 |
| Christopher Riley | Archer Daniels Midland Company | Opposing | GA91 |
| Kate Walton | Arconic (Formerly Alcoa) | Opposing | GA91 |
| Madeleine Bradley | Arconic (Formerly Alcoa) | Opposing | GA91 |
| Matt Eide | Arconic (Formerly Alcoa) | Opposing | GA91 |
| Gary Kay | Cargill | Opposing | GA91 |
| Katie Hall | Cargill | Opposing | GA91 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Michael Triplett | Dairyland Power Cooperative | Supporting | GA91 |
| Michael Triplett | Dairyland Power Cooperative | Undecided | GA91 |
| Nick Laning | IBEW Iowa State Conference | Supporting | GA91 |
| Threase Harms | IBEW Iowa State Conference | Supporting | GA91 |
| Clara Wulfsen | Iowa Biodiesel Board | Opposing | GA91 |
| Doug Struyk | Iowa Biodiesel Board | Opposing | GA91 |
| Jennifer Dorman | Iowa Biodiesel Board | Opposing | GA91 |
| Jim Carney | Iowa Biodiesel Board | Opposing | GA91 |
| Robert Palmer | Iowa Business Energy Coalition (IBEC) | Opposing | GA91 |
| Bob Rafferty | Iowa Business for Clean Energy | Opposing | GA91 |
| John Cacciatore | Iowa Business for Clean Energy | Opposing | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Kelsey Schott | Iowa Economic Alliance | Opposing | GA91 |
| Matt McKinney | Iowa Economic Alliance | Opposing | GA91 |
| RG Schwarm | Iowa Economic Alliance | Opposing | GA91 |
| Cody Smith | Iowa Environmental Council | Undecided | GA91 |
| Colleen Fowle | Iowa Environmental Council | Undecided | GA91 |
| Kerri Johannsen | Iowa Environmental Council | Undecided | GA91 |
| Michael Schmidt | Iowa Environmental Council | Undecided | GA91 |
| Noah Hackbart | Iowa Environmental Council | Undecided | GA91 |
| Sarah Green | Iowa Environmental Council | Undecided | GA91 |
| Threase Harms | Iowa Environmental Council | Undecided | GA91 |
| Nathan Hohnstein | Iowa Renewable Fuels Association (IRF) | Opposing | GA91 |
| Jeff Smith | Iowa Retail Federation | Opposing | GA91 |
| Jim Henter | Iowa Retail Federation | Opposing | GA91 |
| Maggie Smith-Fitzgerald | Iowa Retail Federation | Opposing | GA91 |
| Matt Fitzgerald | Iowa Retail Federation | Opposing | GA91 |
| Christopher Rants | LS Power Grid Midcontinent, LLC | Opposing | GA91 |
| Clara Wulfsen | LS Power Grid Midcontinent, LLC | Opposing | GA91 |
| Doug Struyk | LS Power Grid Midcontinent, LLC | Opposing | GA91 |
| Jennifer Dorman | LS Power Grid Midcontinent, LLC | Opposing | GA91 |
| Jim Carney | LS Power Grid Midcontinent, LLC | Opposing | GA91 |
| John Cacciatore | LS Power Grid Midcontinent, LLC | Opposing | GA91 |
| Clara Wulfsen | Resale Power Group of Iowa | Opposing | GA91 |
| Doug Struyk | Resale Power Group of Iowa | Opposing | GA91 |
| Jennifer Dorman | Resale Power Group of Iowa | Opposing | GA91 |
| Jim Carney | Resale Power Group of Iowa | Opposing | GA91 |
| Clara Wulfsen | Southwest Transmission, LLC | Opposing | GA91 |
| Doug Struyk | Southwest Transmission, LLC | Opposing | GA91 |
| Jennifer Dorman | Southwest Transmission, LLC | Opposing | GA91 |
| Jim Carney | Southwest Transmission, LLC | Opposing | GA91 |
| Kate Walton | Tyson Foods, Inc. | Opposing | GA91 |
| Madeleine Bradley | Tyson Foods, Inc. | Opposing | GA91 |
| Matt Eide | Tyson Foods, Inc. | Opposing | GA91 |