| Business | Phone |
| Ballard Construction Inc 2618 110th St, Marengo 52301 | (319) 227-7253 |
| Brecht Enterprises Inc 302 W Hilton St, Marengo 52301 | (319) 642-7454 |
| Jim Schafbuch Construction 1805 P Ave, Marengo 52301 | (319) 662-4105 |
| Tom Voightman Construction Inc 2105 Highway 6 Trl, Marengo 52301 | (319) 642-7000 |