| Brian Guillaume | AFSCME Iowa Council 61 | Undecided | GA85 |
| Marcia Nichols | AFSCME Iowa Council 61 | Undecided | GA85 |
| Morgan Miller | AFSCME Iowa Council 61 | Undecided | GA85 |
| Drew Klein | Americans For Prosperity | Opposing | GA85 |
| Nicole Woodroffe | Annett Holdings | Undecided | GA85 |
| Robert Weiser | Annett Holdings | Undecided | GA85 |
| Frank Chiodo | Associated General Contractors of Iowa | Supporting | GA85 |
| Frank Chiodo | Associated General Contractors of Iowa | Undecided | GA85 |
| Scott Newhard | Associated General Contractors of Iowa | Supporting | GA85 |
| Nicole Woodroffe | CRST International | Undecided | GA85 |
| Robert Weiser | CRST International | Undecided | GA85 |
| Gary Grant | City of Cedar Rapids | Undecided | GA85 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA85 |
| Katherine Carlucci | City of Iowa City | Undecided | GA85 |
| Thomas Stanberry | City of Iowa City | Undecided | GA85 |
| Dennis Henderson | Fawkes-Lee & Ryan Inc. | Opposing | GA85 |
| Marty Ryan | Fawkes-Lee & Ryan Inc. | Opposing | GA85 |
| Jason Hutcheson | Greater Burlington Partnership | Supporting | GA85 |
| Mark Foster | Greater Burlington Partnership | Supporting | GA85 |
| Brad Epperly | 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 | Supporting | GA85 |
| Jeffrey Boeyink | Highway 61 Coalition | Supporting | GA85 |
| Angela Davis | Hy-Vee, Inc. | Undecided | GA85 |
| Bill Wimmer | Hy-Vee, Inc. | Undecided | GA85 |
| James Piazza, Jr. | International Union of Operating Engineers-Local 234 | Supporting | GA85 |
| Brad Epperly | Iowa Automobile Dealers Association | Supporting | GA85 |
| Paula Dierenfeld | Iowa Automobile Dealers Association | Supporting | GA85 |
| Scott Sundstrom | Iowa Automobile Dealers Association | Supporting | GA85 |
| Robert Hartwig | Iowa Bankers Association | Supporting | GA85 |
| Sharon Presnall | Iowa Bankers Association | Supporting | GA85 |
| Gary Dickey | Iowa Biodiesel Board | Supporting | GA85 |
| Justine Stevenson | Iowa Cattlemen's 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) | Supporting | GA85 |
| Jerry Fitzgerald | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association(ICG) | Supporting | GA85 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Mark Joyce | Iowa Corn Growers Association(ICG) | Supporting | GA85 |
| Mark Joyce | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Mindy Poldberg | Iowa Corn Growers Association(ICG) | Supporting | GA85 |
| Mindy Poldberg | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Lyle Brehm | Iowa County Engineers Association | Undecided | GA85 |
| Mikel Derby | Iowa Dept. of Transportation | Undecided | GA85 |
| Eric Bradley | Iowa Environmental Health Association | Supporting | GA85 |
| Don Petersen | Iowa Farm Bureau Federation | Supporting | GA85 |
| Marty Schwager | Iowa Farm Bureau Federation | Supporting | GA85 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Supporting | GA85 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Supporting | 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 |
| Drue Sander | Iowa Institute for Cooperatives | Supporting | GA85 |
| Drue Sander | Iowa Institute for Cooperatives | Undecided | GA85 |
| Kayla Lyon | Iowa Institute for Cooperatives | Supporting | GA85 |
| Kayla Lyon | Iowa Institute for Cooperatives | Undecided | GA85 |
| Richard White | Iowa Limestone Producers Association | Supporting | GA85 |
| Angela Davis | Iowa Lumber Association | Undecided | GA85 |
| Bill Wimmer | Iowa Lumber Association | Undecided | GA85 |
| David Adelman | Iowa Nebraska Farm Equipment Dealers Association | Supporting | GA85 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA85 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA85 |
| Jim Henter | Iowa Retail Federation | Undecided | GA85 |
| Mike Heller | Iowa Retail Federation | Undecided | GA85 |
| Paula Feltner | Iowa Retail Federation | Undecided | GA85 |
| Jill Altringer | Iowa Soybean Association | Supporting | GA85 |
| Hanna DeGroot | Iowa State Association of Counties | Supporting | GA85 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA85 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA85 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA85 |
| William Peterson | Iowa State Association of Counties | Supporting | GA85 |
| William Heckroth | Iowa State Association of County Supervisors | Supporting | GA85 |
| tom fey | Iowa State Building and Construction Trades Council | Supporting | GA85 |
| Mike Heller | Iowa State Snowmobile Association | Undecided | GA85 |
| Paula Feltner | Iowa State Snowmobile Association | Undecided | GA85 |
| Mike Heller | Iowa Wholesale Beer Distributors Association | Undecided | GA85 |
| Paula Feltner | Iowa Wholesale Beer Distributors Association | Undecided | GA85 |
| Angela Davis | Iowa Wholesale Distributors Association | Undecided | GA85 |
| Bill Wimmer | Iowa Wholesale Distributors Association | Undecided | GA85 |
| Ernie Adkison | Iowans for Tax Relief | Opposing | GA85 |
| Lindsay McQuarry | Iowans for Tax Relief | Opposing | GA85 |
| Robert Solt | Iowans for Tax Relief | Opposing | GA85 |
| Larry Blixt | KWIK Trip, Inc. | Undecided | GA85 |
| John Pederson | Kum and Go | Undecided | GA85 |
| Matt Eide | Kum and Go | Undecided | GA85 |
| Erich Schmidt | Laborers International Union of North America | Supporting | GA85 |
| Michael Triplett | Lafarge North American | Supporting | GA85 |
| Michael Triplett | Lafarge North American | Undecided | GA85 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA85 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA85 |
| Mona Bond | Manatts Inc. | Undecided | GA85 |
| David Adelman | Metropolitan Coalition | Supporting | GA85 |
| Dawn Carlson | Petroleum Marketers and Convenience Stores of Iowa | Undecided | 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 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Supporting | GA85 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Supporting | GA85 |
| Scott Hedderich | Renewable Energy Group (REG) | Supporting | GA85 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA85 |
| Mark Cooper | South Central Iowa Federation of Labor AFL-CIO | Supporting | GA85 |
| Doug Struyk | The Nature Conservancy | Supporting | GA85 |
| George Appleby | The Nature Conservancy | Supporting | GA85 |
| Jennifer Tyler | The Nature Conservancy | Supporting | GA85 |
| Jim Carney | The Nature Conservancy | Supporting | GA85 |
| Nicole Woodroffe | Trans Iowa | Undecided | GA85 |
| Robert Weiser | Trans Iowa | Undecided | GA85 |
| Bob Rafferty | Truckstops of Iowa | Opposing | GA85 |
| Gary Grant | Urban County Coalition | Undecided | GA85 |
| Larry Murphy | Urban County Coalition | Undecided | GA85 |