| Jim Obradovich | Coalition for Iowa Woodlands and Trees | Supporting | GA87 |
| Jim Obradovich | Conservation Districts of Iowa | Undecided | GA87 |
| Connor Slack | Des Moines Water Works | Undecided | GA87 |
| Dane Schumann | Des Moines Water Works | Undecided | GA87 |
| Emily Hockins | Des Moines Water Works | Undecided | GA87 |
| Threase Harms | Des Moines Water Works | Undecided | GA87 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Mike Heller | Iowa Conservation Alliance | Undecided | GA87 |
| Paula Feltner | Iowa Conservation Alliance | Undecided | GA87 |
| Matt Gronewald | Iowa Dept. of Agriculture | Supporting | GA87 |
| Doug Struyk | Iowa Drainage District Association | Undecided | GA87 |
| Jim Carney | Iowa Drainage District Association | Undecided | GA87 |
| John Torbert | Iowa Drainage District Association | Undecided | GA87 |
| Shannon Henson | Iowa Drainage District Association | Undecided | GA87 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA87 |
| Dustin Miller | Iowa Grocery Industry Association | Undecided | GA87 |
| Paige Thorson | Iowa Grocery Industry Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Undecided | GA87 |
| John Pederson | Iowa Harness Horsemen's Association | Undecided | GA87 |
| Matt Eide | Iowa Harness Horsemen's Association | Undecided | GA87 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA87 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA87 |
| Connor Slack | Iowa Rivers Revival | Undecided | GA87 |
| Dane Schumann | Iowa Rivers Revival | Undecided | GA87 |
| Emily Hockins | Iowa Rivers Revival | Undecided | GA87 |
| Threase Harms | Iowa Rivers Revival | Undecided | GA87 |
| Doug Struyk | Iowa Veterinary Medical Association | Supporting | GA87 |
| Jim Carney | Iowa Veterinary Medical Association | Supporting | GA87 |
| Shannon Henson | Iowa Veterinary Medical Association | Supporting | GA87 |
| John Pederson | Iowa Wine Growers Association | Undecided | GA87 |
| Kate Walton | Iowa Wine Growers Association | Undecided | GA87 |
| Matt Eide | Iowa Wine Growers Association | Undecided | GA87 |
| John Pederson | Kum and Go, L.C. | Undecided | GA87 |
| Kate Walton | Kum and Go, L.C. | Undecided | GA87 |
| Matt Eide | Kum and Go, L.C. | Undecided | GA87 |
| Lyle Krewson | Lutheran Services in IA, Inc. | Undecided | GA87 |
| Brad Epperly | Resources Environmental Solutions | Undecided | GA87 |
| Dustin Miller | Resources Environmental Solutions | Undecided | GA87 |
| Paige Thorson | Resources Environmental Solutions | Undecided | GA87 |
| Paula Dierenfeld | Resources Environmental Solutions | Undecided | GA87 |
| Doug Struyk | The Nature Conservancy | Undecided | GA87 |
| Jim Carney | The Nature Conservancy | Undecided | GA87 |
| Shannon Henson | The Nature Conservancy | Undecided | GA87 |
| Bob Rafferty | Truckstops of Iowa | Undecided | GA87 |