| Julie Vande Hoef | Alliant Energy Corporation | Undecided | GA87 |
| Scott Newhard | Associated General Contractors of Iowa | Undecided | GA87 |
| Marc Beltrame | Clarke County Development Corporation | Undecided | GA87 |
| Matt McKinney | Clarke County Development Corporation | Undecided | GA87 |
| RG Schwarm | Clarke County Development Corporation | Undecided | GA87 |
| Emily Piper | Clarke County Resevoir Commission | Opposing | GA87 |
| Dane Schumann | IBEW Iowa State Conference | Undecided | GA87 |
| Emily Hockins | IBEW Iowa State Conference | Undecided | GA87 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA87 |
| Mark Joyce | ITC Midwest | Undecided | GA87 |
| Todd Schulz | ITC Midwest | Undecided | GA87 |
| James Piazza, Jr. | International Union of Operating Engineers-Local 234 | Undecided | GA87 |
| James Piazza, Jr. | International Union of Operating Engineers-Local 234 | Withdrawn | GA87 |
| James Piazza, Jr. | International Union of Operating Engineers-Local 234 | Opposing | 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 |
| Timothy Whipple | Iowa Association of Municipal Utilities | Undecided | GA87 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA87 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA87 |
| Deborah Neustadt | Iowa Chapter of Sierra Club | Undecided | GA87 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Supporting | GA87 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Withdrawn | GA87 |
| Mikel Derby | Iowa Dept. of Transportation | Undecided | GA87 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA87 |
| Nathaniel Baer | Iowa Environmental Council | Opposing | GA87 |
| Ralph Rosenberg | Iowa Environmental Council | Opposing | GA87 |
| Alan Kemp | Iowa League of Cities | Undecided | GA87 |
| Lindsey McCune | Iowa League of Cities | Undecided | GA87 |
| Robert Palmer | Iowa League of Cities | Undecided | GA87 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA87 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA87 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA87 |
| William Peterson | Iowa State Association of Counties | Undecided | 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 |
| tom fey | Iowa State Building and Construction Trades Council | Undecided | GA87 |
| tom fey | Iowa State Building and Construction Trades Council | Withdrawn | GA87 |
| tom fey | Iowa State Building and Construction Trades Council | Opposing | GA87 |
| Louis Vander Streek | Iowa Utilities Board | Undecided | GA87 |
| Erich Schmidt | Laborers International Union of North America | Undecided | GA87 |
| John Davis | MidAmerican Energy Company | Undecided | GA87 |
| Matt Eide | Missouri River Energy Services | Undecided | GA87 |
| Julie Smith | Nebraska Municipal Power Pool - NMPP Energy | Undecided | GA87 |
| James Kersten | Personal Interest-James Kersten | Supporting | GA87 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| Doug Struyk | The Nature Conservancy | Undecided | GA87 |
| Jim Carney | The Nature Conservancy | Undecided | GA87 |
| Shannon Henson | The Nature Conservancy | Undecided | GA87 |
| Doug Struyk | The Preservation of Rural Iowa Alliance | Supporting | GA87 |
| Jim Carney | The Preservation of Rural Iowa Alliance | Supporting | GA87 |
| Shannon Henson | The Preservation of Rural Iowa Alliance | Supporting | GA87 |
| Michael Triplett | Union Pacific Railroad | Opposing | GA87 |