| Keeley & Sons, Inc. | East Saint Louis,IL 62201 | (618) 271-7470 | (618) 271-0830 |
| Korte & Luitjohan Contractors, | Highland,IL 62249 | (618) 654-9877 | (618) 654-9778 |
| Plocher Construction Company, | Highland,IL 62249 | (618) 654-9408 | (618) 654-6454 |
| Southern Illinois Asphalt Comp | Cape Girardeau,MO 63702 | (573) 331-7561 | (573) 388-4394 |
| Luby Equipment Services | Caseyville,IL 62232 | (618) 397-9971 | |
| Byrne & Jones Construction | Bridgeton,MO 63044 | (314) 567-7997 | (314) 567-1828 |
| RoadSafe Traffic Systems | Evansville,IN 47725 | (815) 372-2300 | (812) 477-9607 |