| Jeffrey Boeyink | Coalition to Protect the Rural Economy | Supporting | GA87 |
| Mike Heller | Iowa Academy of Trial Lawyers | Opposing | GA87 |
| Paula Feltner | Iowa Academy of Trial Lawyers | Opposing | 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 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA87 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA87 |
| Deborah Neustadt | Iowa Chapter of Sierra Club | Opposing | GA87 |
| Jess Mazour | Iowa Citizens for Community Improvement Action Fund | Opposing | GA87 |
| Jeff Smith | Iowa Corn Growers Association(ICG) | Supporting | GA87 |
| Jerry Fitzgerald | Iowa Corn Growers Association(ICG) | Supporting | GA87 |
| Jonathan DeReus | Iowa Corn Growers Association(ICG) | Supporting | GA87 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association(ICG) | Supporting | GA87 |
| Matt Fitzgerald | Iowa Corn Growers Association(ICG) | Supporting | GA87 |
| Mindy Poldberg | Iowa Corn Growers Association(ICG) | Supporting | GA87 |
| Brad Epperly | Iowa Defense Counsel Association | Undecided | GA87 |
| Dustin Miller | Iowa Defense Counsel Association | Undecided | GA87 |
| Paige Thorson | Iowa Defense Counsel Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Defense Counsel Association | Undecided | GA87 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA87 |
| Ralph Rosenberg | Iowa Environmental Council | Opposing | 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 |
| Jeffrey Boeyink | Iowa Insurance Institute | Supporting | 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 | Supporting | 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 |
| Jill Altringer | Iowa Soybean Association | Supporting | 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 |
| Doug Struyk | Iowa Veterinary Medical Association | Undecided | GA87 |
| Jim Carney | Iowa Veterinary Medical Association | Undecided | GA87 |
| Shannon Henson | Iowa Veterinary Medical Association | Undecided | GA87 |
| Jim Romar | Teamsters Local 238 | Opposing | GA87 |