| Brad Epperly | AgriReNew | Undecided | GA87 |
| Dustin Miller | AgriReNew | Undecided | GA87 |
| Paige Thorson | AgriReNew | Undecided | GA87 |
| Paula Dierenfeld | AgriReNew | Undecided | GA87 |
| Julie Vande Hoef | Alliant Energy Corporation | Supporting | GA87 |
| Susan Walter | Black Hills Energy | Undecided | GA87 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA87 |
| Stephanie Enloe | Center for Rural Affairs | Undecided | GA87 |
| Jim Obradovich | Distributed Wind Energy Association of America | Undecided | GA87 |
| Pete McRoberts | Distributed Wind Energy Association of America | Undecided | GA87 |
| Robert Mulqueen | Distributed Wind Energy Association of America | Undecided | GA87 |
| Josh Mandelbaum | Environmental Law and Policy Center | Undecided | GA87 |
| Steve Falck | Environmental Law and Policy Center | Undecided | GA87 |
| Christopher Rants | Green Tech Action Fund | Withdrawn | GA87 |
| Christopher Rants | Green Tech Action Fund | Undecided | GA87 |
| John Cacciatore | Green Tech Action Fund | Undecided | GA87 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA87 |
| Deborah Neustadt | Iowa Chapter of Sierra Club | Undecided | GA87 |
| Kerri Johannsen | Iowa Environmental Council | Undecided | GA87 |
| Nathaniel Baer | Iowa Environmental Council | Undecided | GA87 |
| Ralph Rosenberg | Iowa Environmental Council | Undecided | GA87 |
| Susan Guy | Iowa Interfaith Power & Light | Undecided | GA87 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA87 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA87 |
| Louis Vander Streek | Iowa Utilities Board | Undecided | GA87 |
| Jim Obradovich | Iowa Wind Energy Association | Undecided | GA87 |
| John Davis | MidAmerican Energy Company | Undecided | GA87 |
| Julie Smith | Nebraska Municipal Power Pool - NMPP Energy | Undecided | GA87 |
| Anthony Colosimo | Phoenix Renewable Resources | Supporting | GA87 |
| Jim Henter | Phoenix Renewable Resources | Undecided | GA87 |
| Doug Struyk | The Nature Conservancy | Undecided | GA87 |
| Jim Carney | The Nature Conservancy | Undecided | GA87 |
| Shannon Henson | The Nature Conservancy | Undecided | GA87 |