| Indiana Department of Transportation | U.S. Department of Transportation | Federal Highway Administration |
| FHWA-Indiana Division | National Highway Traffic Safety Administration | Association of Indiana Counties |
| Access Indiana | Indiana Legislators | Indiana LTAP |
| Allen County Highway | Elkhart County Highway | Fulton County Highway |
| Grant County Highway | Hamilton County Highway | Lake County Highway |
| Monroe County Highway | St.Joseph County Highway | Warrick County Engineer |
| Warrick County Highway | Henry County Highway | LaGrange County |
| Harrison County Highway Department |
| Aecon Inc. | American Structurepoint, Inc. | Asphalt Pavement Association of Indiana |
| Stephen J. Christian & Associates P.C. | Hall Signs |
| CTL Engineering of Indiana, Inc. |