| Brad Epperly | BNSF Railway Co. | Opposing | GA88 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA88 |
| Dustin Miller | BNSF Railway Co. | Opposing | GA88 |
| Dustin Miller | BNSF Railway Co. | Undecided | GA88 |
| Katie Graham | BNSF Railway Co. | Opposing | GA88 |
| Katie Graham | BNSF Railway Co. | Undecided | GA88 |
| Paula Dierenfeld | BNSF Railway Co. | Opposing | GA88 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA88 |
| Jim Obradovich | Boone and Scenic Valley Railroad | Opposing | GA88 |
| Pete McRoberts | Boone and Scenic Valley Railroad | Opposing | GA88 |
| Robert Mulqueen | Boone and Scenic Valley Railroad | Opposing | GA88 |
| Jim Obradovich | Burlington Junction Railway | Opposing | GA88 |
| Pete McRoberts | Burlington Junction Railway | Opposing | GA88 |
| Robert Mulqueen | Burlington Junction Railway | Opposing | GA88 |
| Doug Struyk | Iowa Drainage District Association | Supporting | GA88 |
| Jennifer Dorman | Iowa Drainage District Association | Supporting | GA88 |
| Jim Carney | Iowa Drainage District Association | Supporting | GA88 |
| John Torbert | Iowa Drainage District Association | Supporting | GA88 |
| Mona Bond | Iowa Drainage District Association | Supporting | GA88 |
| Angela Davis | Iowa Environmental Council | Undecided | GA88 |
| Maddie Wilcox | Iowa Farmers Union | Undecided | GA88 |
| Threase Harms | Iowa Farmers Union | Undecided | GA88 |
| Jim Obradovich | Iowa Interstate Railroad | Opposing | GA88 |
| Pete McRoberts | Iowa Interstate Railroad | Opposing | GA88 |
| Robert Mulqueen | Iowa Interstate Railroad | Opposing | GA88 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA88 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA88 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA88 |
| William Peterson | Iowa State Association of Counties | Supporting | GA88 |
| Jamie Cashman | Iowa State Association of County Supervisors | Supporting | GA88 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Supporting | GA88 |
| Lucas Beenken | Iowa State Association of County Supervisors | Supporting | GA88 |
| William Peterson | Iowa State Association of County Supervisors | Supporting | GA88 |
| Dane Schumann | Jensen Farms | Undecided | GA88 |
| Jim Obradovich | Keokuk Junction Railway c/o Pioneer Railcorp | Opposing | GA88 |
| Pete McRoberts | Keokuk Junction Railway c/o Pioneer Railcorp | Opposing | GA88 |
| Robert Mulqueen | Keokuk Junction Railway c/o Pioneer Railcorp | Opposing | GA88 |
| Jim Obradovich | Progressive Rail Iowa (Iowa Traction RR and Iowa Southern RR) | Opposing | GA88 |
| Pete McRoberts | Progressive Rail Iowa (Iowa Traction RR and Iowa Southern RR) | Opposing | GA88 |
| Robert Mulqueen | Progressive Rail Iowa (Iowa Traction RR and Iowa Southern RR) | Opposing | GA88 |
| Sydney Gangestad | Two Rivers Levee & Drainage District | Undecided | GA88 |
| Tim Coonan | Two Rivers Levee & Drainage District | Undecided | GA88 |
| Michael Triplett | Union Pacific Railroad | Opposing | GA88 |
| Michael Triplett | Union Pacific Railroad | Undecided | GA88 |