| Julie Vande Hoef | Alliant Energy Corporation | Undecided | GA87 |
| Drew Klein | Americans For Prosperity | Undecided | GA87 |
| Drew Kamp | Ames Chamber of Commerce | Undecided | GA87 |
| Susan Walter | Black Hills Energy | Undecided | GA87 |
| Stephanie Enloe | Center for Rural Affairs | Opposing | GA87 |
| MIke Delaney | Citizens For A Healthy Iowa | Opposing | GA87 |
| Connor Slack | Des Moines Water Works | Opposing | GA87 |
| Dane Schumann | Des Moines Water Works | Opposing | GA87 |
| Emily Hockins | Des Moines Water Works | Opposing | GA87 |
| Threase Harms | Des Moines Water Works | Opposing | GA87 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA87 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA87 |
| Dustin Miller | Greater Des Moines Partnership | Undecided | GA87 |
| Joe Murphy | Greater Des Moines Partnership | Undecided | GA87 |
| Paige Thorson | Greater Des Moines Partnership | Undecided | GA87 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA87 |
| Connor Slack | Grow Clinton County | Supporting | GA87 |
| Dane Schumann | Grow Clinton County | Supporting | GA87 |
| Emily Hockins | Grow Clinton County | Supporting | GA87 |
| Threase Harms | Grow Clinton County | Supporting | GA87 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| Gary Nims | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| Marty Ryan | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| Rita Carter | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| Sheila Corsbie | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| Stephanie Fawkes-Lee | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| Walden Paige | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| William Steward | Iowa Annual Conference of United Methodist Church | Opposing | 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 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA87 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Undecided | GA87 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA87 |
| Paige Thorson | Iowa Association of Electric Cooperatives | Undecided | GA87 |
| Paula Dierenfeld | Iowa Association of Electric Cooperatives | Undecided | GA87 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA87 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA87 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA87 |
| Paige Thorson | Iowa Chamber Alliance | Undecided | GA87 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA87 |
| Deborah Neustadt | Iowa Chapter of Sierra Club | Opposing | GA87 |
| Neila Seaman | Iowa Chapter of Sierra Club | Opposing | GA87 |
| Erica Blair | Iowa Citizens for Community Improvement Action Fund | Opposing | GA87 |
| Jess Mazour | Iowa Citizens for Community Improvement Action Fund | Opposing | GA87 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Undecided | GA87 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA87 |
| Ralph Rosenberg | Iowa Environmental Council | Opposing | GA87 |
| Connor Slack | Iowa Farmers Union | Opposing | GA87 |
| Connor Slack | Iowa Farmers Union | Supporting | GA87 |
| Dane Schumann | Iowa Farmers Union | Opposing | GA87 |
| Dane Schumann | Iowa Farmers Union | Supporting | GA87 |
| Emily Hockins | Iowa Farmers Union | Opposing | GA87 |
| Emily Hockins | Iowa Farmers Union | Supporting | GA87 |
| Threase Harms | Iowa Farmers Union | Opposing | GA87 |
| Threase Harms | Iowa Farmers Union | Withdrawn | GA87 |
| Threase Harms | Iowa Farmers Union | Supporting | GA87 |
| Brad Epperly | Iowa Geothermal Association | Undecided | GA87 |
| Dustin Miller | Iowa Geothermal Association | Undecided | GA87 |
| Paige Thorson | Iowa Geothermal Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Geothermal 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 |
| Susan Guy | Iowa Interfaith Power & Light | Opposing | GA87 |
| Brad Epperly | Iowa Propane Gas Association | Undecided | GA87 |
| Dustin Miller | Iowa Propane Gas Association | Undecided | GA87 |
| Paige Thorson | Iowa Propane Gas Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Propane Gas 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 |
| Emily Piper | Iowa Rural Water Association | Undecided | GA87 |
| Brad Epperly | Iowa Water Well Association | Undecided | GA87 |
| Dustin Miller | Iowa Water Well Association | Undecided | GA87 |
| Paige Thorson | Iowa Water Well Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Water Well Association | Undecided | GA87 |
| MIke Delaney | Izaak Walton League - Iowa Division | Opposing | GA87 |
| Brad Epperly | Monsanto Company | Undecided | GA87 |
| Dustin Miller | Monsanto Company | Undecided | GA87 |
| Paige Thorson | Monsanto Company | Undecided | GA87 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| MIke Delaney | Raccoon River Watershed Association | Opposing | 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 |
| Mike Heller | Waste Management, Inc. | Undecided | GA87 |
| Paula Feltner | Waste Management, Inc. | Undecided | GA87 |