| Brad Epperly | Ames Regional Economic Alliance | Opposing | GA90 |
| Dustin Miller | Ames Regional Economic Alliance | Opposing | GA90 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Opposing | GA90 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Opposing | GA90 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Opposing | GA90 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Undecided | GA90 |
| Steve Firman | Grow Cedar Valley | Opposing | GA90 |
| Carolann Jensen | Iowa Board of Regents | Opposing | GA90 |
| Jennifer Harbison | Iowa Board of Regents | Opposing | GA90 |
| Keith Saunders | Iowa Board of Regents | Opposing | GA90 |
| Mary Braun | Iowa Board of Regents | Opposing | GA90 |
| Joe Murphy | Iowa Business Council | Opposing | GA90 |
| Kellie Paschke | Iowa Cattlemen's Association | Opposing | GA90 |
| Kelly Meyers | Iowa Cattlemen's Association | Opposing | GA90 |
| Troy Skinner | Iowa Cattlemen's Association | Opposing | GA90 |
| Brad Epperly | Iowa Chamber Alliance | Opposing | GA90 |
| Dustin Miller | Iowa Chamber Alliance | Opposing | GA90 |
| Jeff Smith | Iowa Corn Growers Association | Opposing | GA90 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association | Opposing | GA90 |
| Matt Fitzgerald | Iowa Corn Growers Association | Opposing | GA90 |
| Mindy Poldberg | Iowa Corn Growers Association | Opposing | GA90 |
| Frederick Haskins | Iowa Insurance Associates | Opposing | GA90 |
| Brett Barker | Iowa Pharmacy Association | Opposing | GA90 |
| Kate Walton | Iowa Pharmacy Association | Opposing | GA90 |
| Madeleine Bradley | Iowa Pharmacy Association | Opposing | GA90 |
| Matt Eide | Iowa Pharmacy Association | Opposing | GA90 |
| Seth Brown | Iowa Pharmacy Association | Opposing | GA90 |
| Ben Nuelle | Iowa Pork Producers Association | Opposing | GA90 |
| Jeff Smith | Iowa Pork Producers Association | Opposing | GA90 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association | Opposing | GA90 |
| Matt Fitzgerald | Iowa Pork Producers Association | Opposing | GA90 |
| Doug Struyk | Iowa Soybean Association | Opposing | GA90 |
| Jennifer Dorman | Iowa Soybean Association | Opposing | GA90 |
| Jim Carney | Iowa Soybean Association | Opposing | GA90 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA90 |
| Morgan Miller | Iowa State Education Association | Opposing | GA90 |
| Doug Struyk | Iowa Veterinary Medical Association | Opposing | GA90 |
| Jennifer Dorman | Iowa Veterinary Medical Association | Opposing | GA90 |
| Jim Carney | Iowa Veterinary Medical Association | Opposing | GA90 |
| Jill Altringer | North Central Poultry Association | Opposing | GA90 |
| Frederick Haskins | Patterson Law Firm LLP | Undecided | GA90 |
| Nathaniel Arnold | Professional Educators of Iowa | Undecided | GA90 |
| Chuck Hurley | The Family Leader | Supporting | GA90 |
| Danny Carroll | The Family Leader | Supporting | GA90 |
| Rebekah Oleson | The Family Leader | Supporting | GA90 |
| Ryan Benn | The Family Leader | Supporting | GA90 |
| Chuck Hurley | The Family Leader Foundation | Supporting | GA90 |
| Danny Carroll | The Family Leader Foundation | Supporting | GA90 |
| Rebekah Oleson | The Family Leader Foundation | Supporting | GA90 |
| Ryan Benn | The Family Leader Foundation | Supporting | GA90 |