| Brad Epperly | American Clean Power Association | Opposing | GA89 |
| Dustin Miller | American Clean Power Association | Opposing | GA89 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Opposing | GA89 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Opposing | GA89 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Opposing | GA89 |
| Emily Piper | Iowa Association of School Boards | Supporting | GA89 |
| Michelle Johnson | Iowa Association of School Boards | Supporting | GA89 |
| Phil Jeneary | Iowa Association of School Boards | Supporting | GA89 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA89 |
| Deanna Triplett | Iowa Economic Development Authority | Undecided | GA89 |
| Chelsea Hoye | Iowa Environmental Council | Undecided | GA89 |
| Emilee Harris-Puricelli | Iowa Environmental Council | Undecided | GA89 |
| Threase Harms | Iowa Environmental Council | Undecided | GA89 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA89 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA89 |
| Mike Heller | Iowa State Association of Assessors | Supporting | GA89 |
| Mike Heller | Iowa State Association of Assessors | Undecided | GA89 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA89 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA89 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA89 |
| William Peterson | Iowa State Association of Counties | Supporting | GA89 |
| Geri Huser | Iowa Utilities Board | Undecided | GA89 |
| Maison Bleam | Iowa Utilities Board | Undecided | GA89 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA89 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA89 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA89 |
| Onnalee Gettler | MidAmerican Energy Company | Undecided | GA89 |
| Kate Walton | Missouri River Energy Services | Undecided | GA89 |
| Madeleine Bradley | Missouri River Energy Services | Undecided | GA89 |
| Matt Eide | Missouri River Energy Services | Undecided | GA89 |
| Brian Johnson | NextEra Energy | Opposing | GA89 |
| Christopher Rants | NextEra Energy | Opposing | GA89 |
| John Cacciatore | NextEra Energy | Opposing | GA89 |
| Justin Hupfer | NextEra Energy | Opposing | GA89 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Dave Daughton | Rural School Advocates of Iowa | Supporting | GA89 |
| Margaret Buckton | Rural School Advocates of Iowa | Supporting | GA89 |
| Gary Grant | Urban County Coalition | Undecided | GA89 |
| Larry Murphy | Urban County Coalition | Undecided | GA89 |
| Meghan Malloy | Urban County Coalition | Undecided | GA89 |
| Margaret Buckton | Urban Education Network of Iowa | Supporting | GA89 |