| Middendorf, Inc. | Dupo,IL 62239 | (618) 540-8446 | (618) 589-1864 |
| Bryant Construction Company, I | Harrisburg,IL 62946 | (618) 994-2990 | (618) 994-4040 |
| Carson Excavating, L.L.C. | Bethalto,IL 62010 | (618) 781-5982 | |
| Munie Trenching & Excavating, | Highland,IL 62249 | (618) 654-5075 | |
| Collins & Hermann, Inc. | Saint Louis,MO 63138-8901 | (314) 869-8000 | (314) 869-8498 |