| 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 |
| Kellie Paschke | FUELIowa | Undecided | GA87 |
| Troy Skinner | FUELIowa | Undecided | GA87 |
| Bob Ward | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Gary Nims | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Kathleen McQuillen | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Rita Carter | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Sheila Corsbie | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Walden Paige | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| William Steward | Iowa Annual Conference of United Methodist Church | 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 |
| Linda Kinman | Iowa Association of Water Agencies | Undecided | GA87 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA87 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA87 |
| Deborah Neustadt | Iowa Chapter of Sierra Club | 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 |
| Mona Bond | Iowa Drainage District Association | Undecided | GA87 |
| Shannon Henson | Iowa Drainage District Association | Undecided | GA87 |
| Jim Obradovich | Iowa Elk Breeders Association | Undecided | GA87 |
| Jim Obradovich | Iowa Environmental Health Association | Undecided | GA87 |
| Pete McRoberts | Iowa Environmental Health Association | Undecided | GA87 |
| Robert Mulqueen | Iowa Environmental Health Association | Undecided | GA87 |
| Connor Slack | Iowa Farmers Union | Undecided | GA87 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA87 |
| Emily Hockins | Iowa Farmers Union | Undecided | GA87 |
| Threase Harms | Iowa Farmers Union | 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 St. Clair | Iowa Institute for Cooperatives | 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 |
| Doug Struyk | Iowa Veterinary Medical Association | Undecided | GA87 |
| Jim Carney | Iowa Veterinary Medical Association | Supporting | GA87 |
| Jim Carney | Iowa Veterinary Medical Association | Undecided | GA87 |
| Shannon Henson | Iowa Veterinary Medical Association | Supporting | GA87 |
| Shannon Henson | Iowa Veterinary Medical Association | Undecided | GA87 |
| Mark Joyce | Iowa Whitetail Deer Association | Undecided | GA87 |
| Brice Oakley | Koch Companies Public Sector, LLC and Affiliates | Undecided | GA87 |
| Don Avenson | Koch Companies Public Sector, LLC and Affiliates | Undecided | GA87 |
| Tom Cope | Koch Companies Public Sector, LLC and Affiliates | Undecided | GA87 |
| John Pederson | POET, LLC | Undecided | GA87 |
| Matt Eide | POET, LLC | 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 |