| Haier Plumbing and Heating, In | Okawville,IL 62271-0400 | (618) 243-5908 | (618) 243-5900 |
| Luhr Bros., Inc. | Columbia,IL 62236-0050 | (618) 281-4106 | (618) 281-4288 |
| Tarlton Corporation | Saint Louis,MO 63110-1853 | (314) 633-3300 | (314) 647-1940 |
| Kaskaskia Engineering Group, L | Belleville,IL 62220 | (618) 233-5877 | (618) 233-5977 |
| Bollmeier Crane & Lift | Madison,IL 62060 | (618) 451-6171 | (618) 877-4826 |
| Brewster Companies, Inc. | Maryville,IL 62062 | (618) 344-4468 | (618) 223-1887 |
| Fred Weber, Inc. | Maryland Heights,MO 63043-8501 | (314) 344-0070 | (314) 344-0970 |
| SAK Construction, L.L.C. | O'Fallon,MO 63366 | (636) 385-1000 | (636) 385-1100 |
| Mott Excavating, Inc. | Vienna,IL 62995 | (618) 658-2605 | (618) 658-3214 |
| Widman Construction, Inc. | Godfrey,IL 62035-9998 | (618) 466-1036 | (618) 466-7984 |