| Dane Schumann | Des Moines Water Works | Undecided | GA86 |
| Emily Hockins | Des Moines Water Works | Undecided | GA86 |
| Threase Harms | Des Moines Water Works | Undecided | GA86 |
| Bob Skow | Independent Insurance Agents of Iowa | Supporting | GA86 |
| Larry Blixt | Independent Insurance Agents of Iowa | Supporting | GA86 |
| Linda Kinman | Iowa Association of Water Agencies | Undecided | GA86 |
| Jess Mazour | Iowa Citizens for Community Improvement Action Fund | Opposing | GA86 |
| Brice Oakley | Iowa Communities Assurance Pool (ICAP) | Supporting | GA86 |
| Don Avenson | Iowa Communities Assurance Pool (ICAP) | Supporting | GA86 |
| Tom Cope | Iowa Communities Assurance Pool (ICAP) | Supporting | GA86 |
| Brad Epperly | Iowa Defense Counsel Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Defense Counsel Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Defense Counsel Association | Undecided | GA86 |
| Doug Struyk | Iowa Drainage District Association | Supporting | GA86 |
| Doug Struyk | Iowa Drainage District Association | Undecided | GA86 |
| George Appleby | Iowa Drainage District Association | Supporting | GA86 |
| George Appleby | Iowa Drainage District Association | Undecided | GA86 |
| Jennifer Tyler | Iowa Drainage District Association | Supporting | GA86 |
| Jennifer Tyler | Iowa Drainage District Association | Undecided | GA86 |
| Jim Carney | Iowa Drainage District Association | Supporting | GA86 |
| Jim Carney | Iowa Drainage District Association | Undecided | GA86 |
| John Torbert | Iowa Drainage District Association | Undecided | GA86 |
| Mona Bond | Iowa Drainage District Association | Undecided | GA86 |
| Shannon Henson | Iowa Drainage District Association | Supporting | GA86 |
| Shannon Henson | Iowa Drainage District Association | Undecided | GA86 |
| Don Petersen | Iowa Farm Bureau Federation | Opposing | GA86 |
| Don Petersen | Iowa Farm Bureau Federation | Undecided | GA86 |
| Marty Schwager | Iowa Farm Bureau Federation | Opposing | GA86 |
| Marty Schwager | Iowa Farm Bureau Federation | Undecided | GA86 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Opposing | GA86 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Undecided | GA86 |
| Dustin Miller | Iowa League of Cities | Undecided | GA86 |
| Robert Palmer | Iowa League of Cities | Undecided | GA86 |
| Dane Schumann | Iowa Rivers Revival | Undecided | GA86 |
| Emily Hockins | Iowa Rivers Revival | Undecided | GA86 |
| Threase Harms | Iowa Rivers Revival | Undecided | GA86 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA86 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA86 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA86 |
| William Peterson | Iowa State Association of Counties | Supporting | GA86 |
| William Heckroth | Iowa State Association of County Supervisors | Supporting | GA86 |