| Brad Epperly | BNSF Railway Co. | Undecided | GA87 |
| Dustin Miller | BNSF Railway Co. | Undecided | GA87 |
| Paige Thorson | BNSF Railway Co. | Undecided | GA87 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA87 |
| Brice Oakley | Casey's General Stores | Supporting | GA87 |
| Don Avenson | Casey's General Stores | Supporting | GA87 |
| Tom Cope | Casey's General Stores | Supporting | GA87 |
| Gary Grant | City of Cedar Rapids | Undecided | GA87 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA87 |
| Meghan Malloy | City of Cedar Rapids | Undecided | GA87 |
| Brad Epperly | Eastlake Partnership | Undecided | GA87 |
| Dustin Miller | Eastlake Partnership | Undecided | GA87 |
| Paige Thorson | Eastlake Partnership | Undecided | GA87 |
| Paula Dierenfeld | Eastlake Partnership | Undecided | GA87 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Jennifer Kingland | Iowa Association of Realtors | Supporting | GA87 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA87 |
| Dustin Miller | Iowa Automobile Dealers Association | Undecided | GA87 |
| Paige Thorson | Iowa Automobile Dealers Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Automobile Dealers Association | Undecided | GA87 |
| Brad Epperly | Iowa Grocery Industry Association | Supporting | GA87 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA87 |
| Dustin Miller | Iowa Grocery Industry Association | Supporting | GA87 |
| Dustin Miller | Iowa Grocery Industry Association | Undecided | GA87 |
| Paige Thorson | Iowa Grocery Industry Association | Supporting | GA87 |
| Paige Thorson | Iowa Grocery Industry Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Supporting | GA87 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Undecided | GA87 |
| Alan Kemp | Iowa League of Cities | Undecided | GA87 |
| Lindsey McCune | Iowa League of Cities | Undecided | GA87 |
| Robert Palmer | Iowa League of Cities | Undecided | GA87 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Paige Thorson | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Mike Heller | Iowa State Association of Assessors | Undecided | GA87 |
| Mike Heller | Iowa State Association of Assessors | Withdrawn | GA87 |
| Mike Heller | Iowa State Association of Assessors | Opposing | GA87 |
| Paula Feltner | Iowa State Association of Assessors | Undecided | GA87 |
| Paula Feltner | Iowa State Association of Assessors | Opposing | GA87 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA87 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA87 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA87 |
| William Peterson | Iowa State Association of Counties | Undecided | GA87 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA87 |
| Jim Carney | Iowa State Bar Association | Undecided | GA87 |
| Shannon Henson | Iowa State Bar Association | Undecided | GA87 |
| Jennifer Kingland | Iowa Taxpayers Association | Supporting | GA87 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA87 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA87 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA87 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Supporting | GA87 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| Gary Grant | Urban County Coalition | Undecided | GA87 |
| Larry Murphy | Urban County Coalition | Undecided | GA87 |
| Meghan Malloy | Urban County Coalition | Undecided | GA87 |