| BRITTANY LUMLEY | Alliant Energy Corporation | Opposing | GA90 |
| Courtney Craig | Alliant Energy Corporation | Opposing | GA90 |
| Jeffrey Boeyink | Alliant Energy Corporation | Opposing | GA90 |
| Taylor McDonald | Alliant Energy Corporation | Opposing | GA90 |
| Ted Stopulos | Alliant Energy Corporation | Opposing | GA90 |
| Kate Hansen | Center for Rural Affairs | Supporting | GA90 |
| Josh Mandelbaum | Environmental Law and Policy Center | Supporting | GA90 |
| Steve Falck | Environmental Law and Policy Center | Supporting | GA90 |
| Nick Laning | IBEW Iowa State Conference | Opposing | GA90 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA90 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Undecided | GA90 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Opposing | GA90 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA90 |
| John Hirl | Iowa Association of Municipal Utilities | Opposing | GA90 |
| Marc Beltrame | Iowa Association of Municipal Utilities | Opposing | GA90 |
| Brad Epperly | Iowa Business Energy Coalition (IBEC) | Undecided | GA90 |
| Dustin Miller | Iowa Business Energy Coalition (IBEC) | Undecided | GA90 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA90 |
| Kelly Meyers | Iowa Cattlemen's Association | Undecided | GA90 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Supporting | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA90 |
| Deanna Triplett | Iowa Economic Development Authority | Undecided | GA90 |
| Chelsea Hoye | Iowa Environmental Council | Supporting | GA90 |
| Cody Smith | Iowa Environmental Council | Supporting | GA90 |
| Threase Harms | Iowa Environmental Council | Supporting | GA90 |
| Christopher Rants | Iowa Solar Energy Trade Association | Supporting | GA90 |
| John Cacciatore | Iowa Solar Energy Trade Association | Supporting | GA90 |
| Geri Huser | Iowa Utilities Commission | Undecided | GA90 |
| Louis Vander Streek | Iowa Utilities Commission | Undecided | GA90 |
| Maison Bleam | Iowa Utilities Commission | Undecided | GA90 |
| Onnalee Gettler | MidAmerican Energy Company | Opposing | GA90 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA90 |