| David Scott | American Council of Engineering Companies | Opposing | GA84 |
| Daniel Weiser | Annett Holdings | Undecided | GA84 |
| Robert Weiser | Annett Holdings | Undecided | GA84 |
| Daniel Weiser | CRST International | Undecided | GA84 |
| Robert Weiser | CRST International | Undecided | GA84 |
| Jessica Hyland | City of Iowa City | Undecided | GA84 |
| Thomas Stanberry | City of Iowa City | Undecided | GA84 |
| Mike Heller | Coalition for Family and Children's Services in IA | Supporting | GA84 |
| Paula Feltner | Coalition for Family and Children's Services in IA | Supporting | GA84 |
| Mike Heller | Father Flanagans Boys Home | Supporting | GA84 |
| Paula Feltner | Father Flanagans Boys Home | Supporting | 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. | Opposing | 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. Automobile Dealers Assn. | Undecided | GA84 |
| Keith Luchtel | IA. Automobile Dealers Assn. | Undecided | GA84 |
| Paula Dierenfeld | IA. Automobile Dealers Assn. | Undecided | GA84 |
| Scott Sundstrom | IA. Automobile Dealers Assn. | 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. | Opposing | GA84 |
| Elizabeth Baird | IA. Dept. of Transportation | Undecided | GA84 |
| David Scott | IA. Engineering Society | Opposing | GA84 |
| Charlie Wishman | IA. Federation of Labor, AFL-CIO | Undecided | GA84 |
| Ken Sagar | IA. Federation of Labor, AFL-CIO | Undecided | GA84 |
| David Scott | IA. Good Roads Assn. | Opposing | GA84 |
| Brad Epperly | IA. Grocery Industry Assn. | Undecided | GA84 |
| Keith Luchtel | IA. Grocery Industry Assn. | Undecided | GA84 |
| Paula Dierenfeld | IA. Grocery Industry Assn. | Undecided | GA84 |
| Scott Sundstrom | IA. Grocery Industry Assn. | Undecided | GA84 |
| David Scott | IA. Motor Truck Assn. | Opposing | GA84 |
| Hanna DeGroot | IA. State Assn. of Counties | Opposing | GA84 |
| Kristi Harshbarger | IA. State Assn. of Counties | Opposing | GA84 |
| Linda Hinton | IA. State Assn. of Counties | Opposing | GA84 |
| MaryBeth Mellick | IA. State Assn. of Counties | Opposing | GA84 |
| William Peterson | IA. State Assn. of Counties | Opposing | GA84 |
| Michael Wentzien | IA. State Assn. of County Supervisors | Opposing | GA84 |
| Mike St. Clair | IA. State Building and Construction Trades Council | Undecided | GA84 |
| tom fey | IA. State Building and Construction Trades Council | Undecided | GA84 |
| Mark Cooper | South Central Iowa Federation of Labor AFL-CIO | Undecided | GA84 |