| David Scott | American Council of Engineering Companies | Undecided | GA91 |
| Dustin Rush | Americans For Prosperity | Supporting | GA91 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA91 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Nick Laning | IBEW Iowa State Conference | Opposing | GA91 |
| Threase Harms | IBEW Iowa State Conference | Opposing | GA91 |
| Kellie Paschke | Iowa Association for Justice | Undecided | GA91 |
| Kelly Meyers | Iowa Association for Justice | Undecided | GA91 |
| Kellie Paschke | Iowa Association of Behavior Analysis | Undecided | GA91 |
| Kelly Meyers | Iowa Association of Behavior Analysis | Undecided | GA91 |
| Eric Goranson | Iowa Association of Christian Schools | Supporting | GA91 |
| Clara Wulfsen | Iowa Athletic Trainers Society | Undecided | GA91 |
| Doug Struyk | Iowa Athletic Trainers Society | Undecided | GA91 |
| Jennifer Dorman | Iowa Athletic Trainers Society | Undecided | GA91 |
| Jim Carney | Iowa Athletic Trainers Society | Undecided | GA91 |
| Jeff Smith | Iowa Chiropractic Society | Undecided | GA91 |
| Maggie Smith-Fitzgerald | Iowa Chiropractic Society | Undecided | GA91 |
| Matt Fitzgerald | Iowa Chiropractic Society | Undecided | GA91 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA91 |
| Tom Ferguson | Iowa County Attorneys Association | Undecided | GA91 |
| David Adelman | Iowa Dental Association | Undecided | GA91 |
| Frank Chiodo | Iowa Dental Association | Undecided | GA91 |
| Joshua Carpenter | Iowa Dental Association | Undecided | GA91 |
| Matt Hinch | Iowa Dental Association | Undecided | GA91 |
| Paige Thorson | Iowa Dental Association | Undecided | GA91 |
| Sara Allen | Iowa Dental Association | Undecided | GA91 |
| Sara Throener | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA91 |
| Sarah Vanderploeg | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA91 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Undecided | GA91 |
| David Scott | Iowa Engineering Society | Undecided | GA91 |
| Teresa Bomhoff | Iowa Integrated Health Planning and Advisory Council | Opposing | GA91 |
| Emily Piper | Iowa Mental Health Counselors Association | Undecided | GA91 |
| Amy Campbell | Iowa Nurses Association | Undecided | GA91 |
| Craig Patterson | Iowa Nurses Association | Undecided | GA91 |
| Nick Laning | Iowa Occupational Therapy Association | Undecided | GA91 |
| Noah Hackbart | Iowa Occupational Therapy Association | Undecided | GA91 |
| Threase Harms | Iowa Occupational Therapy Association | Undecided | GA91 |
| Kate Walton | Iowa Pharmacy Association | Undecided | GA91 |
| Madeleine Bradley | Iowa Pharmacy Association | Undecided | GA91 |
| Matt Eide | Iowa Pharmacy Association | Undecided | GA91 |
| Jacob Schrader | Iowa Physician Assistant Society | Undecided | GA91 |
| Logan Murray | Iowa Physician Assistant Society | Undecided | GA91 |
| Emily Piper | Iowa Psychiatric Physicians Society | Undecided | GA91 |
| Logan Shine | Iowa Psychiatric Physicians Society | Undecided | GA91 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA91 |
| Casey Nickel | Iowa Society of Certified Public Accountants | Undecided | GA91 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA91 |
| Clara Wulfsen | Iowa State Bar Association | Opposing | GA91 |
| Doug Struyk | Iowa State Bar Association | Opposing | GA91 |
| Jennifer Dorman | Iowa State Bar Association | Opposing | GA91 |
| Jim Carney | Iowa State Bar Association | Opposing | GA91 |
| Kellie Paschke | Iowa State Education Association | Undecided | GA91 |
| Kelly Meyers | Iowa State Education Association | Undecided | GA91 |
| Melissa Peterson | Iowa State Education Association | Undecided | GA91 |
| Morgan Miller | Iowa State Education Association | Undecided | GA91 |
| Clara Wulfsen | Iowa Veterinary Medical Association | Supporting | GA91 |
| Doug Struyk | Iowa Veterinary Medical Association | Supporting | GA91 |
| Jennifer Dorman | Iowa Veterinary Medical Association | Supporting | GA91 |
| Jim Carney | Iowa Veterinary Medical Association | Supporting | GA91 |
| David Scott | Iowa Water Well Association | Undecided | GA91 |
| Christopher Rants | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA91 |
| Justin Hupfer | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA91 |
| Christopher Rants | NECA - Iowa (NEC) | Undecided | GA91 |
| Justin Hupfer | NECA - Iowa (NEC) | Undecided | GA91 |
| Dave Daughton | Rural School Advocates of Iowa | Undecided | GA91 |
| Margaret Buckton | Rural School Advocates of Iowa | Undecided | GA91 |
| Dave Daughton | School Administrators of Iowa | Undecided | GA91 |
| David Scott | Society of Land Surveyors of Iowa | Undecided | GA91 |
| Margaret Buckton | Urban Education Network of Iowa | Undecided | GA91 |
| John Strathman | VALOR Iowa | Supporting | GA91 |