| Brian Johnson | Alliance Pipeline, Inc. | Undecided | GA85 |
| Jamie Cashman | Alliance Pipeline, Inc. | Undecided | GA85 |
| Rita Bettis Austen | American Civil Liberties Union of Iowa (ACLU-IA) | Undecided | GA85 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA85 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA85 |
| Scott Sundstrom | BNSF Railway Co. | Undecided | GA85 |
| Susan Walter | Black Hills Energy | Undecided | GA85 |
| John Pederson | CN | Undecided | GA85 |
| Matt Eide | CN | Undecided | GA85 |
| John Pederson | City of Cedar Falls | Undecided | GA85 |
| Matt Eide | City of Cedar Falls | Undecided | GA85 |
| Gary Grant | City of Cedar Rapids | Undecided | GA85 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA85 |
| Jerry Fitzgerald | City of Des Moines | Undecided | GA85 |
| Maggie Smith-Fitzgerald | City of Des Moines | Undecided | GA85 |
| Mark Joyce | City of Des Moines | Undecided | GA85 |
| Emily Piper | Clarke County Resevoir Commission | Opposing | GA85 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA85 |
| Joseph Jones | Greater Des Moines Partnership | Undecided | GA85 |
| Matt Hinch | Greater Des Moines Partnership | Undecided | GA85 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA85 |
| Scott Sundstrom | Greater Des Moines Partnership | Undecided | GA85 |
| Angela Davis | Home Builders Association of Iowa | Undecided | GA85 |
| Bill Wimmer | Home Builders Association of Iowa | 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 |
| Julie Smith | Iowa Association of Municipal Utilities | Undecided | GA85 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA85 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA85 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA85 |
| Justine Stevenson | Iowa Cattlemen's Association | Supporting | GA85 |
| Kellie Paschke | Iowa Cattlemen's Association | Supporting | GA85 |
| Lindsay Phillips | Iowa Cattlemen's Association | Supporting | GA85 |
| Troy Skinner | Iowa Cattlemen's Association | Supporting | GA85 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA85 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA85 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA85 |
| Scott Sundstrom | Iowa Chamber Alliance | Undecided | GA85 |
| Mike Heller | Iowa Conservation Alliance | Undecided | GA85 |
| Paula Feltner | Iowa Conservation Alliance | Undecided | GA85 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Undecided | GA85 |
| Mikel Derby | Iowa Dept. of Transportation | Undecided | GA85 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA85 |
| Kent Hartwig | Iowa Farmers Union | Undecided | GA85 |
| Threase Harms | Iowa Farmers Union | Undecided | GA85 |
| Dustin Miller | Iowa League of Cities | Undecided | GA85 |
| Jessica Hyland | Iowa League of Cities | Undecided | GA85 |
| Julie Smith | Iowa League of Cities | Undecided | GA85 |
| Emily Piper | Iowa Rural Water Association | Opposing | GA85 |
| Hanna DeGroot | Iowa State Association of Counties | Undecided | GA85 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA85 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA85 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA85 |
| William Peterson | Iowa State Association of Counties | Undecided | GA85 |
| William Heckroth | Iowa State Association of County Supervisors | Undecided | GA85 |
| Joe Kelly | Iowa State Sheriffs' & Deputies' Association | Undecided | GA85 |
| Susan Cameron Daemen | Iowa State Sheriffs' & Deputies' Association | Undecided | GA85 |
| Joan Conrad | Iowa Utilities Board | Undecided | GA85 |
| Kerri Johannsen | Iowa Utilities Board | Undecided | GA85 |
| Libby Jacobs | Iowa Utilities Board | Undecided | GA85 |
| Erich Schmidt | Laborers International Union of North America | Undecided | GA85 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA85 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA85 |
| John Davis | MidAmerican Energy Company | Undecided | GA85 |
| Brian Johnson | NextEra Energy | Undecided | GA85 |
| Jamie Cashman | NextEra Energy | Undecided | GA85 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA85 |
| Jamie Cashman | Polk County - Board of Supervisors | Undecided | GA85 |
| Gary Grant | Urban County Coalition | Undecided | GA85 |
| Larry Murphy | Urban County Coalition | Undecided | GA85 |