| David Scott | American Council of Engineering Companies | Opposing | GA84 |
| David Scott | American Water Works Assn. | Supporting | GA84 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA84 |
| Keith Luchtel | BNSF Railway Co. | Undecided | GA84 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA84 |
| Scott Sundstrom | BNSF Railway Co. | Undecided | GA84 |
| John Pederson | City of Cedar Falls | Undecided | GA84 |
| Matt Eide | City of Cedar Falls | Undecided | GA84 |
| Gary Grant | City of Cedar Rapids | Undecided | GA84 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA84 |
| Brice Oakley | City of Coralville | Opposing | GA84 |
| Brice Oakley | City of Coralville | Undecided | GA84 |
| Don Avenson | City of Coralville | Opposing | GA84 |
| Don Avenson | City of Coralville | Undecided | GA84 |
| Tom Cope | City of Coralville | Opposing | GA84 |
| Tom Cope | City of Coralville | Undecided | GA84 |
| Jeffrey Lester | City of Des Moines | Opposing | GA84 |
| Jerry Fitzgerald | City of Des Moines | Opposing | GA84 |
| Jerry Fitzgerald | City of Des Moines | Undecided | GA84 |
| Maggie Smith-Fitzgerald | City of Des Moines | Opposing | GA84 |
| Maggie Smith-Fitzgerald | City of Des Moines | Undecided | GA84 |
| Mark Joyce | City of Des Moines | Opposing | GA84 |
| Mark Joyce | City of Des Moines | Undecided | GA84 |
| Jessica Hyland | City of Iowa City | Undecided | GA84 |
| Thomas Stanberry | City of Iowa City | Undecided | GA84 |
| Bob Rafferty | City of Waukee | Opposing | GA84 |
| Brice Oakley | City of West Des Moines | Opposing | GA84 |
| Brice Oakley | City of West Des Moines | Undecided | GA84 |
| Don Avenson | City of West Des Moines | Opposing | GA84 |
| Don Avenson | City of West Des Moines | Undecided | GA84 |
| Tom Cope | City of West Des Moines | Opposing | GA84 |
| Tom Cope | City of West Des Moines | Undecided | GA84 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA84 |
| Keith Luchtel | Greater Des Moines Partnership | Undecided | GA84 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA84 |
| Scott Sundstrom | Greater Des Moines Partnership | Undecided | GA84 |
| James Piazza, Jr. | Heavy Highway Contractors Assn. | Undecided | GA84 |
| Bill Wimmer | Home Builders Assn. of IA | Undecided | GA84 |
| Craig Schoenfeld | Home Builders Assn. of IA | Undecided | GA84 |
| Jim Obradovich | Hubbell Realty Company | Undecided | GA84 |
| Robert Mulqueen | Hubbell Realty Company | Undecided | GA84 |
| John Gilliland | IA. Assn. of Business and Industry (ABI) | Undecided | GA84 |
| Kevin Condon | IA. Assn. of Business and Industry (ABI) | Undecided | GA84 |
| Michael Ralston | IA. Assn. of Business and Industry (ABI) | Undecided | GA84 |
| Brad Epperly | IA. Chamber Alliance | Undecided | GA84 |
| John Stineman | IA. Chamber Alliance | Undecided | GA84 |
| Keith Luchtel | IA. Chamber Alliance | Undecided | GA84 |
| Paula Dierenfeld | IA. Chamber Alliance | Undecided | GA84 |
| Scott Sundstrom | IA. Chamber Alliance | Undecided | GA84 |
| Lyle Brehm | IA. County Engineers Assn. | Undecided | GA84 |
| David Scott | IA. Engineering Society | Opposing | GA84 |
| Alan Kemp | IA. League of Cities | Opposing | GA84 |
| Bruce Bergman | IA. League of Cities | Opposing | GA84 |
| Jessica Hyland | IA. League of Cities | Opposing | GA84 |
| Julie Smith | IA. League of Cities | Opposing | GA84 |
| Katherine Carlucci | IA. League of Cities | Opposing | GA84 |
| Larry Pope | IA. League of Cities | Opposing | GA84 |
| Megan Peiffer | IA. League of Cities | Opposing | GA84 |
| Brad Epperly | IA. Newspaper Assn. | Undecided | GA84 |
| Keith Luchtel | IA. Newspaper Assn. | Undecided | GA84 |
| Paula Dierenfeld | IA. Newspaper Assn. | Undecided | GA84 |
| Scott Sundstrom | IA. Newspaper Assn. | Undecided | GA84 |
| Mike Heller | IA. State Assn. of Assessors | Undecided | GA84 |
| Paula Feltner | IA. State Assn. of Assessors | Undecided | GA84 |
| Hanna DeGroot | IA. State Assn. of Counties | Undecided | GA84 |
| Kristi Harshbarger | IA. State Assn. of Counties | Undecided | GA84 |
| Linda Hinton | IA. State Assn. of Counties | Undecided | GA84 |
| MaryBeth Mellick | IA. State Assn. of Counties | Undecided | GA84 |
| William Peterson | IA. State Assn. of Counties | Undecided | GA84 |
| Michael Wentzien | IA. State Assn. of County Supervisors | Undecided | GA84 |
| Mike St. Clair | IA. State Building and Construction Trades Council | Undecided | GA84 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA84 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA84 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA84 |
| Jamie Cashman | Polk County - Board of Supervisors | Undecided | GA84 |