| Jeffrey Boeyink | Alliant Energy Corporation | Undecided | GA88 |
| Julie Vande Hoef | Alliant Energy Corporation | Undecided | GA88 |
| Taylor McDonald | Alliant Energy Corporation | Undecided | GA88 |
| Drew Klein | Americans For Prosperity | Undecided | GA88 |
| Tyler Raygor | Americans For Prosperity | Undecided | GA88 |
| Christopher Rants | Center for Rural Affairs | Supporting | GA88 |
| Cody Smith | Center for Rural Affairs | Supporting | GA88 |
| John Cacciatore | Center for Rural Affairs | Supporting | GA88 |
| Johnathan Hladik | Center for Rural Affairs | Supporting | GA88 |
| Katie Rock | Center for Rural Affairs | Supporting | GA88 |
| Cyndi Pederson | Central Iowa Power Cooperative (CIPCO) | Undecided | GA88 |
| John Pederson | Central Iowa Power Cooperative (CIPCO) | Undecided | GA88 |
| Tim Reilly | Department of Revenue | Undecided | GA88 |
| Josh Mandelbaum | Environmental Law and Policy Center | Supporting | GA88 |
| Steve Falck | Environmental Law and Policy Center | Supporting | GA88 |
| Dane Schumann | IBEW Iowa State Conference | Undecided | GA88 |
| Maddie Wilcox | IBEW Iowa State Conference | Undecided | GA88 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA88 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Drew Wynes | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Timothy Whipple | Iowa Association of Municipal Utilities | Undecided | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Supporting | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA88 |
| Brian Carter | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Gary Nims | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Rita Carter | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Jake Ketzner | Iowa Conservative Energy Forum | Supporting | GA88 |
| Jennifer Terry | Iowa Environmental Council | Supporting | GA88 |
| Jordan Oster | Iowa Environmental Council | Supporting | GA88 |
| Kerri Johannsen | Iowa Environmental Council | Supporting | GA88 |
| Brad Epperly | Iowa Geothermal Association | Undecided | GA88 |
| Dustin Miller | Iowa Geothermal Association | Undecided | GA88 |
| Katie Graham | Iowa Geothermal Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Geothermal Association | Undecided | GA88 |
| Sydney Gangestad | Iowa Propane Gas Association | Opposing | GA88 |
| Tim Coonan | Iowa Propane Gas Association | Opposing | GA88 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Jim Henter | Iowa Retail Federation | Undecided | GA88 |
| Christopher Rants | Iowa Solar Energy Trade Association | Supporting | GA88 |
| John Cacciatore | Iowa Solar Energy Trade Association | Supporting | GA88 |
| John Davis | MidAmerican Energy Company | Undecided | GA88 |
| Onnalee Gettler | MidAmerican Energy Company | Undecided | GA88 |
| Brian Johnson | NextEra Energy | Undecided | GA88 |
| Craig Walter | NextEra Energy | Undecided | GA88 |
| Doug Struyk | The Nature Conservancy | Undecided | GA88 |
| Jennifer Dorman | The Nature Conservancy | Undecided | GA88 |
| Jim Carney | The Nature Conservancy | Undecided | GA88 |