| David Scott | American Council of Engineering Companies | Undecided | GA85 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Opposing | GA85 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Undecided | GA85 |
| Gary Grant | City of Cedar Rapids | Supporting | GA85 |
| Larry Murphy | City of Cedar Rapids | Supporting | GA85 |
| Katherine Carlucci | City of Iowa City | Undecided | GA85 |
| Thomas Stanberry | City of Iowa City | Undecided | GA85 |
| Katherine Carlucci | City of Waukee | Undecided | GA85 |
| Thomas Stanberry | City of Waukee | Undecided | GA85 |
| Midge Slater | Communications Workers of America Iowa State Council | Opposing | GA85 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA85 |
| Joseph Jones | Greater Des Moines Partnership | Undecided | GA85 |
| Matt Hinch | Greater Des Moines Partnership | Undecided | GA85 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA85 |
| Scott Sundstrom | Greater Des Moines Partnership | Undecided | GA85 |
| James Piazza, Jr. | Heavy Highway Contractors Association | Opposing | GA85 |
| James Piazza, Jr. | International Union of Operating Engineers-Local 234 | Opposing | GA85 |
| Kevin Condon | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA85 |
| Paula Dierenfeld | Iowa Automobile Dealers Association | Undecided | GA85 |
| Scott Sundstrom | Iowa Automobile Dealers Association | Undecided | GA85 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA85 |
| Lindsay Phillips | Iowa Cattlemen's Association | Undecided | GA85 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA85 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA85 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA85 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA85 |
| Scott Sundstrom | Iowa Chamber Alliance | Undecided | GA85 |
| Jerry Fitzgerald | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Mark Joyce | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Mindy Poldberg | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Lyle Brehm | Iowa County Engineers Association | Opposing | GA85 |
| Amber Markham | Iowa Dept. of Public Safety | Undecided | GA85 |
| Elizabeth Baird | Iowa Dept. of Transportation | Undecided | GA85 |
| David Scott | Iowa Engineering Society | Undecided | GA85 |
| Ben Murry | Iowa Federation of Labor, AFL-CIO | Opposing | GA85 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA85 |
| David Scott | Iowa Good Roads Association | Undecided | GA85 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA85 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Undecided | GA85 |
| Scott Sundstrom | Iowa Grocery Industry Association | Undecided | GA85 |
| David Scott | Iowa Motor Truck Association | Undecided | GA85 |
| Laverne Schroeder | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA85 |
| Will Rogers | Iowa Nebraska Farm Equipment Dealers Association | Undecided | GA85 |
| Kellie Paschke | Iowa Peace Officers Association | Undecided | GA85 |
| Lindsay Phillips | Iowa Peace Officers Association | Undecided | GA85 |
| Troy Skinner | Iowa Peace Officers Association | Undecided | GA85 |
| Hanna DeGroot | Iowa State Association of Counties | Undecided | GA85 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA85 |
| Linda Hinton | Iowa State Association of Counties | Undecided | GA85 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA85 |
| William Peterson | Iowa State Association of Counties | Undecided | GA85 |
| William Heckroth | Iowa State Association of County Supervisors | Opposing | GA85 |
| William Heckroth | Iowa State Association of County Supervisors | Undecided | GA85 |
| tom fey | Iowa State Building and Construction Trades Council | Opposing | GA85 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA85 |
| Gary Grant | Linn County Board of Supervisors | Supporting | GA85 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA85 |
| Larry Murphy | Linn County Board of Supervisors | Supporting | GA85 |
| Mona Bond | Manatts Inc. | Undecided | GA85 |
| Chad Kleppe | Master Builders of Iowa | Opposing | GA85 |
| Marc Beltrame | Master Builders of Iowa | Opposing | GA85 |
| Matt McKinney | Master Builders of Iowa | Opposing | GA85 |
| Kellie Paschke | Petroleum Marketers and Convenience Stores of Iowa | Undecided | GA85 |
| Lindsay Phillips | Petroleum Marketers and Convenience Stores of Iowa | Undecided | GA85 |
| Troy Skinner | Petroleum Marketers and Convenience Stores of Iowa | Undecided | GA85 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA85 |
| Jamie Cashman | Polk County - Board of Supervisors | Undecided | GA85 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA85 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA85 |
| Mark Cooper | South Central Iowa Federation of Labor AFL-CIO | Opposing | GA85 |
| Amy Campbell | Travel Federation of Iowa | Undecided | GA85 |
| Craig Patterson | Travel Federation of Iowa | Undecided | GA85 |
| Gary Grant | Urban County Coalition | Undecided | GA85 |
| Gary Grant | Urban County Coalition | Supporting | GA85 |
| Larry Murphy | Urban County Coalition | Undecided | GA85 |
| Larry Murphy | Urban County Coalition | Supporting | GA85 |