| David Scott | American Council of Engineering Companies | Opposing | GA83 |
| Brad Epperly | American General Finance | Undecided | GA83 |
| James West | American General Finance | Undecided | GA83 |
| Keith Luchtel | American General Finance | Undecided | GA83 |
| Paula Dierenfeld | American General Finance | Undecided | GA83 |
| Scott Sundstrom | American General Finance | Undecided | GA83 |
| Brad Epperly | American Insurance Assn. | Undecided | GA83 |
| James West | American Insurance Assn. | Undecided | GA83 |
| Keith Luchtel | American Insurance Assn. | Undecided | GA83 |
| Paula Dierenfeld | American Insurance Assn. | Undecided | GA83 |
| Scott Sundstrom | American Insurance Assn. | Undecided | GA83 |
| Andrew Baumert | Board of Regents, State of IA | Undecided | GA83 |
| David Miles | Board of Regents, State of IA | Undecided | GA83 |
| Joe Murphy | Board of Regents, State of IA | Undecided | GA83 |
| Keith Saunders | Board of Regents, State of IA | Undecided | GA83 |
| Robert Donley | Board of Regents, State of IA | Undecided | GA83 |
| George Appleby | Cedar Rapids Builders Assn. | Opposing | GA83 |
| Jennifer Tyler | Cedar Rapids Builders Assn. | Opposing | GA83 |
| Jim Carney | Cedar Rapids Builders Assn. | Opposing | GA83 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA83 |
| Bruce Bergman | City of Des Moines | Undecided | GA83 |
| Jerry Fitzgerald | City of Des Moines | Undecided | GA83 |
| Maggie Smith-Fitzgerald | City of Des Moines | Undecided | GA83 |
| Mark Joyce | City of Des Moines | Undecided | GA83 |
| Emily Piper | Control Technology & Solutions | Supporting | GA83 |
| Jay Byers | Greater Des Moines Partnership | Undecided | GA83 |
| Bill Wimmer | Home Builders Assn. of IA | Opposing | GA83 |
| Craig Schoenfeld | Home Builders Assn. of IA | Opposing | GA83 |
| John Gilliland | IA. Assn. of Business and Industry (ABI) | Undecided | GA83 |
| Michael Ralston | IA. Assn. of Business and Industry (ABI) | Undecided | GA83 |
| Nicole Crain | IA. Assn. of Business and Industry (ABI) | Undecided | GA83 |
| Emily Piper | IA. Assn. of School Boards | Supporting | GA83 |
| Margaret Buckton | IA. Assn. of School Boards | Supporting | GA83 |
| Mary Gannon | IA. Assn. of School Boards | Supporting | GA83 |
| Brad Epperly | IA. Broadcasters Assn. | Undecided | GA83 |
| James West | IA. Broadcasters Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Broadcasters Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Broadcasters Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Broadcasters Assn. | Undecided | GA83 |
| Brad Epperly | IA. Chapter, American Institute of Architects | Opposing | GA83 |
| James West | IA. Chapter, American Institute of Architects | Opposing | GA83 |
| Keith Luchtel | IA. Chapter, American Institute of Architects | Opposing | GA83 |
| Paula Dierenfeld | IA. Chapter, American Institute of Architects | Opposing | GA83 |
| Scott Sundstrom | IA. Chapter, American Institute of Architects | Opposing | GA83 |
| Brice Oakley | IA. Chapter, American Society of Landscape Architects | Undecided | GA83 |
| Brice Oakley | IA. Chapter, American Society of Landscape Architects | Supporting | GA83 |
| Don Avenson | IA. Chapter, American Society of Landscape Architects | Undecided | GA83 |
| Don Avenson | IA. Chapter, American Society of Landscape Architects | Supporting | GA83 |
| Tom Cope | IA. Chapter, American Society of Landscape Architects | Undecided | GA83 |
| Tom Cope | IA. Chapter, American Society of Landscape Architects | Supporting | GA83 |
| George Appleby | IA. Competitive Bidding Alliance, Inc. | Opposing | GA83 |
| Jennifer Tyler | IA. Competitive Bidding Alliance, Inc. | Opposing | GA83 |
| Jim Carney | IA. Competitive Bidding Alliance, Inc. | Opposing | GA83 |
| Ross Loder | IA. Dept. of Public Safety | Undecided | GA83 |
| David Scott | IA. Engineering Society | Opposing | GA83 |
| Greg Boattenhamer | IA. Hospital Assn. | Supporting | GA83 |
| J. Norris | IA. Hospital Assn. | Supporting | GA83 |
| Shannon Strickler | IA. Hospital Assn. | Supporting | GA83 |
| Laverne Schroeder | IA. Nebraska Farm Equipment Dealers Assn. | Undecided | GA83 |
| Brad Epperly | IA. Newspaper Assn. | Undecided | GA83 |
| James West | IA. Newspaper Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Newspaper Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Newspaper Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Newspaper Assn. | Undecided | GA83 |
| Hanna DeGroot | IA. State Assn. of Counties | Undecided | GA83 |
| Linda Hinton | IA. State Assn. of Counties | Undecided | GA83 |
| Nathan Bonnett | IA. State Assn. of Counties | Undecided | GA83 |
| William Peterson | IA. State Assn. of Counties | Undecided | GA83 |
| Cloyd Robinson | Iowans for Tax Relief | Opposing | GA83 |
| Edward Failor, | Iowans for Tax Relief | Opposing | GA83 |
| Katie Koberg | Iowans for Tax Relief | Opposing | GA83 |
| Mary Earnhardt | Iowans for Tax Relief | Opposing | GA83 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA83 |
| Chad Kleppe | Master Builders of IA | Undecided | GA83 |
| Mike Heller | Master Builders of IA | Undecided | GA83 |
| Paula Feltner | Master Builders of IA | Undecided | GA83 |
| Brian Johnson | Mechanical Contractors Association of IA (MCAI) | Supporting | GA83 |
| JoAnn Johnson | Mechanical Contractors Association of IA (MCAI) | Supporting | GA83 |
| Jerry Fitzgerald | National Electrical Contractors Assn. (NECA of IA) | Supporting | GA83 |
| Maggie Smith-Fitzgerald | National Electrical Contractors Assn. (NECA of IA) | Supporting | GA83 |
| Mark Joyce | National Electrical Contractors Assn. (NECA of IA) | Supporting | GA83 |
| Brian Johnson | Polk County - Board of Supervisors | Supporting | GA83 |
| JoAnn Johnson | Polk County - Board of Supervisors | Supporting | GA83 |
| Dr. Norman | School Administrators of IA | Undecided | GA83 |