| Brad Epperly | BNSF Railway Co. | Opposing | GA90 |
| Dustin Miller | BNSF Railway Co. | Opposing | GA90 |
| Jefferson Fink | Boone and Scenic Valley Railroad | Opposing | GA90 |
| Jim Obradovich | Boone and Scenic Valley Railroad | Opposing | GA90 |
| Victoria Sinclair | Boone and Scenic Valley Railroad | Opposing | GA90 |
| Michael Walker | Brotherhood of Locomotive Engineers and Trainmen | Undecided | GA90 |
| Jefferson Fink | Burlington Junction Railway | Opposing | GA90 |
| Jim Obradovich | Burlington Junction Railway | Opposing | GA90 |
| Victoria Sinclair | Burlington Junction Railway | Opposing | GA90 |
| Kate Walton | CN Rail | Opposing | GA90 |
| Madeleine Bradley | CN Rail | Opposing | GA90 |
| Matt Eide | CN Rail | Opposing | GA90 |
| Jefferson Fink | Davenport Industrial Railroad | Opposing | GA90 |
| Jim Obradovich | Davenport Industrial Railroad | Opposing | GA90 |
| Victoria Sinclair | Davenport Industrial Railroad | Opposing | GA90 |
| Lyle Brehm | Iowa County Engineers Association | Undecided | GA90 |
| Jefferson Fink | Iowa Interstate Railroad | Opposing | GA90 |
| Jim Obradovich | Iowa Interstate Railroad | Opposing | GA90 |
| Victoria Sinclair | Iowa Interstate Railroad | Opposing | GA90 |
| BRITTANY LUMLEY | Iowa Northern Railway Company | Undecided | GA90 |
| Courtney Craig | Iowa Northern Railway Company | Undecided | GA90 |
| Elliott Meyer | Iowa Northern Railway Company | Undecided | GA90 |
| Robert Weiser | Iowa Northern Railway Company | Undecided | GA90 |
| Jefferson Fink | Patriot Rail (Keokuk Junction Railway) | Opposing | GA90 |
| Jim Obradovich | Patriot Rail (Keokuk Junction Railway) | Opposing | GA90 |
| Chris Smith | SMART-Transportation Division | Undecided | GA90 |
| Larry Lloyd | Soo Line Railroad Company d/b/a Candian Pacific Kansas City (CPKC) | Opposing | GA90 |
| Michael Triplett | Union Pacific Railroad | Opposing | GA90 |