| Susan Walter | Black Hills Energy | Undecided | GA85 |
| John Pederson | CN | Undecided | GA85 |
| Matt Eide | CN | Undecided | GA85 |
| Jim Obradovich | Conservation Districts of Iowa | Undecided | GA85 |
| Jim Obradovich | County Zoning Officials Organiztion | Undecided | GA85 |
| Matt Ohloff | Food & Water Watch | Undecided | GA85 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Undecided | GA85 |
| Marty Ryan | Iowa Annual Conference of United Methodist Church | Undecided | GA85 |
| Rita Carter | Iowa Annual Conference of United Methodist Church | Undecided | GA85 |
| Walden Paige | Iowa Annual Conference of United Methodist Church | Undecided | GA85 |
| William Steward | Iowa Annual Conference of United Methodist Church | Undecided | GA85 |
| Kevin Condon | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA85 |
| Tom Chapman | Iowa Catholic Conference | Undecided | GA85 |
| Neila Seaman | Iowa Chapter of Sierra Club | Undecided | GA85 |
| Sandra Simmons | Iowa Chapter of Sierra Club | Undecided | GA85 |
| Sandra Simmons | Iowa Chapter of Sierra Club | Supporting | GA85 |
| David Goodner | Iowa Citizens for Community Improvement Action Fund | Undecided | GA85 |
| Matt Gronewald | Iowa Dept. of Agriculture | Undecided | GA85 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Undecided | GA85 |
| Jim Obradovich | Iowa Environmental Council | Supporting | GA85 |
| Ralph Rosenberg | Iowa Environmental Council | Supporting | GA85 |
| Robert Mulqueen | Iowa Environmental Council | Supporting | GA85 |
| Hanna DeGroot | Iowa State Association of Counties | Supporting | GA85 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA85 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA85 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA85 |
| William Peterson | Iowa State Association of Counties | Supporting | GA85 |
| William Heckroth | Iowa State Association of County Supervisors | Supporting | GA85 |
| Amy Campbell | League of Women Voters of Iowa | Undecided | GA85 |
| Craig Patterson | League of Women Voters of Iowa | Undecided | GA85 |
| Steven Schoenebaum | Pattison Bros. Mississippi River Terminal, Inc. | Undecided | GA85 |
| Steven Schoenebaum | Pattison Sand Company, L.L.C. | Undecided | GA85 |
| Neila Seaman | Sierra Club of Iowa Chapter | Supporting | GA85 |