| John Pederson | ALCOA | Supporting | GA84 |
| Matt Eide | ALCOA | Supporting | GA84 |
| Jerry Fitzgerald | Agribusiness Assn. of IA | Undecided | GA84 |
| Maggie Smith-Fitzgerald | Agribusiness Assn. of IA | Undecided | GA84 |
| Mark Joyce | Agribusiness Assn. of IA | Undecided | GA84 |
| Terry Harrmann | Alliant Energy Corporation | Undecided | GA84 |
| Ann McCarthy | Board of Regents, State of IA | Undecided | GA84 |
| David Miles | Board of Regents, State of IA | Undecided | GA84 |
| Joe Murphy | Board of Regents, State of IA | Undecided | GA84 |
| Keith Saunders | Board of Regents, State of IA | Undecided | GA84 |
| Robert Donley | Board of Regents, State of IA | Undecided | GA84 |
| Brad Epperly | Deere & Company | Undecided | GA84 |
| Jason Francque | Deere & Company | Undecided | GA84 |
| Keith Luchtel | Deere & Company | Undecided | GA84 |
| Paula Dierenfeld | Deere & Company | Undecided | GA84 |
| Scott Sundstrom | Deere & Company | Undecided | GA84 |
| Steve Falck | Environmental Law and Policy Center | Opposing | GA84 |
| Jay Byers | Greater Des Moines Partnership | Undecided | GA84 |
| John Gilliland | IA. Assn. of Business and Industry (ABI) | Supporting | GA84 |
| Michael Ralston | IA. Assn. of Business and Industry (ABI) | Supporting | GA84 |
| Nicole Crain | IA. Assn. of Business and Industry (ABI) | Supporting | GA84 |
| Brad Epperly | IA. Assn. of Electric Cooperatives | Supporting | GA84 |
| Keith Luchtel | IA. Assn. of Electric Cooperatives | Supporting | GA84 |
| Paula Dierenfeld | IA. Assn. of Electric Cooperatives | Supporting | GA84 |
| Scott Sundstrom | IA. Assn. of Electric Cooperatives | Supporting | GA84 |
| Tim Coonan | IA. Assn. of Electric Cooperatives | Supporting | GA84 |
| Julie Smith | IA. Assn. of Municipal Utilities | Supporting | GA84 |
| Larry Pope | IA. Assn. of Municipal Utilities | Supporting | GA84 |
| Neila Seaman | IA. Chapter of Sierra Club | Opposing | GA84 |
| Neila Seaman | IA. Chapter of Sierra Club | Undecided | GA84 |
| Jerry Fitzgerald | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Maggie Smith-Fitzgerald | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Mark Joyce | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Mindy Poldberg | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Sharon Tahtinen | IA. Dept. of Natural Resources | Undecided | GA84 |
| Jim Obradovich | IA. Environmental Council | Opposing | GA84 |
| Leland Searles | IA. Environmental Council | Opposing | GA84 |
| Jen Schulte | IA. Farmers Union | Undecided | GA84 |
| Kent Hartwig | IA. Farmers Union | Undecided | GA84 |
| Kyle Frette | IA. Farmers Union | Undecided | GA84 |
| Threase Harms | IA. Farmers Union | Undecided | GA84 |
| Julie Smith | IA. League of Cities | Supporting | GA84 |
| Larry Pope | IA. League of Cities | Supporting | GA84 |
| Betty Lord-Dinan | IA. Nurses Assn. | Undecided | GA84 |
| Linda Goeldner | IA. Nurses Assn. | Undecided | GA84 |
| Jerry Fitzgerald | IA. Pork Producers Assn. (IPP) | Undecided | GA84 |
| Maggie Smith-Fitzgerald | IA. Pork Producers Assn. (IPP) | Undecided | GA84 |
| Mark Joyce | IA. Pork Producers Assn. (IPP) | Undecided | GA84 |
| Montgomery Shaw | IA. Renewable Fuels Assn. (IRF) | Supporting | GA84 |
| Michael Triplett | Lafarge North American | Supporting | GA84 |
| Amy Campbell | League of Women Voters of IA | Undecided | GA84 |
| Craig Patterson | League of Women Voters of IA | Undecided | GA84 |
| Brad Epperly | Monsanto Company | Undecided | GA84 |
| Keith Luchtel | Monsanto Company | Undecided | GA84 |
| Scott Sundstrom | Monsanto Company | Undecided | GA84 |
| Brian Johnson | Polk County - Board of Supervisors | Opposing | GA84 |
| Jamie Cashman | Polk County - Board of Supervisors | Opposing | GA84 |
| George Appleby | SSAB (f/k/a IPSCO Steel) | Undecided | GA84 |
| Jennifer Tyler | SSAB (f/k/a IPSCO Steel) | Undecided | GA84 |
| Jim Carney | SSAB (f/k/a IPSCO Steel) | Undecided | GA84 |
| Mike Heller | Waste Management, Inc. | Undecided | GA84 |
| Paula Feltner | Waste Management, Inc. | Undecided | GA84 |