| Marc Beltrame | Allied Insurance | Supporting | GA87 |
| RG Schwarm | Allied Insurance | Supporting | GA87 |
| Jeffrey Boeyink | Coalition to Protect the Rural Economy | Supporting | GA87 |
| Josh Mandelbaum | Environmental Law and Policy Center | Undecided | GA87 |
| Steve Falck | Environmental Law and Policy Center | Undecided | GA87 |
| Mike St. Clair | Grinnell Mutual Reinsurance Company | Supporting | GA87 |
| Mike Heller | Iowa Academy of Trial Lawyers | Undecided | GA87 |
| Paula Feltner | Iowa Academy of Trial Lawyers | Undecided | GA87 |
| Angela Davis | Iowa Association for Justice | Opposing | GA87 |
| Bill Wimmer | Iowa Association for Justice | Opposing | GA87 |
| Brad Lint | Iowa Association for Justice | Opposing | GA87 |
| Lisa Davis-Cook | Iowa Association for Justice | Opposing | GA87 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA87 |
| Meghan Malloy | Iowa Catholic Conference | Undecided | GA87 |
| Kellie Paschke | Iowa Cattlemen's Association | Supporting | GA87 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA87 |
| Troy Skinner | Iowa Cattlemen's Association | Supporting | GA87 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA87 |
| Deborah Neustadt | Iowa Chapter of Sierra Club | Opposing | GA87 |
| Jess Mazour | Iowa Citizens for Community Improvement Action Fund | Opposing | GA87 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA87 |
| Kerri Johannsen | Iowa Environmental Council | Undecided | GA87 |
| Ralph Rosenberg | Iowa Environmental Council | Opposing | GA87 |
| Ralph Rosenberg | Iowa Environmental Council | Undecided | GA87 |
| Connor Slack | Iowa Farmers Union | Opposing | GA87 |
| Dane Schumann | Iowa Farmers Union | Opposing | GA87 |
| Emily Hockins | Iowa Farmers Union | Opposing | GA87 |
| Threase Harms | Iowa Farmers Union | Opposing | GA87 |
| Jeff Smith | Iowa Pork Producers Association (IPP) | Supporting | GA87 |
| Jerry Fitzgerald | Iowa Pork Producers Association (IPP) | Supporting | GA87 |
| Jonathan DeReus | Iowa Pork Producers Association (IPP) | Supporting | GA87 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association (IPP) | Supporting | GA87 |
| Matt Fitzgerald | Iowa Pork Producers Association (IPP) | Supporting | GA87 |
| Tyler Bettin | Iowa Pork Producers Association (IPP) | Supporting | GA87 |
| Jill Altringer | Iowa Poultry Association | Undecided | GA87 |
| Connor Slack | Iowa Rivers Revival | Opposing | GA87 |
| Dane Schumann | Iowa Rivers Revival | Opposing | GA87 |
| Emily Hockins | Iowa Rivers Revival | Opposing | GA87 |
| Threase Harms | Iowa Rivers Revival | Opposing | GA87 |
| Marc Beltrame | Iowa Select Farms, L.L.P. | Supporting | GA87 |
| RG Schwarm | Iowa Select Farms, L.L.P. | Supporting | GA87 |
| Carol Balvanz | Iowa Soybean Association | Supporting | GA87 |
| Carol Balvanz | Iowa Soybean Association | Undecided | GA87 |
| Jill Altringer | Iowa Soybean Association | Supporting | GA87 |
| Jill Altringer | Iowa Soybean Association | Undecided | GA87 |
| Jill Altringer | Iowa State Dairy Association | Undecided | GA87 |
| Sue Ann Claudon | Iowa State Dairy Association | Supporting | GA87 |
| Jill Altringer | Iowa Turkey Federation | Undecided | GA87 |
| Doug Struyk | Iowa Veterinary Medical Association | Undecided | GA87 |
| Jim Carney | Iowa Veterinary Medical Association | Undecided | GA87 |
| Shannon Henson | Iowa Veterinary Medical Association | Undecided | 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 |
| Marc Beltrame | Nationwide Agribusiness | Supporting | GA87 |
| RG Schwarm | Nationwide Agribusiness | Supporting | GA87 |
| Marc Beltrame | Nationwide Mutual Ins. Co. | Supporting | GA87 |
| RG Schwarm | Nationwide Mutual Ins. Co. | Supporting | GA87 |
| Mike St. Clair | Property Casualty Insurers Association of America (PCI) | Supporting | GA87 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Supporting | GA87 |
| Josh Skipworth | The Humane Society of the United States | Opposing | GA87 |