| David Scott | American Petroleum Institute | 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 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 |
| Brad Epperly | Iowa Business Energy Coalition (IBEC) | Undecided | GA88 |
| Dustin Miller | Iowa Business Energy Coalition (IBEC) | Undecided | GA88 |
| Katie Graham | Iowa Business Energy Coalition (IBEC) | Undecided | GA88 |
| Paula Dierenfeld | Iowa Business Energy Coalition (IBEC) | Undecided | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Supporting | GA88 |
| Jennifer Terry | Iowa Environmental Council | Supporting | GA88 |
| Jordan Oster | Iowa Environmental Council | Supporting | GA88 |
| Kerri Johannsen | Iowa Environmental Council | Supporting | GA88 |
| Doug Struyk | Resale Power Group of Iowa | Withdrawn | GA88 |
| Doug Struyk | Resale Power Group of Iowa | Undecided | GA88 |
| Jennifer Dorman | Resale Power Group of Iowa | Withdrawn | GA88 |
| Jennifer Dorman | Resale Power Group of Iowa | Undecided | GA88 |
| Jim Carney | Resale Power Group of Iowa | Withdrawn | GA88 |
| Jim Carney | Resale Power Group of Iowa | Undecided | GA88 |
| Chris Smith | SMART-Transportation Division | Undecided | GA88 |