| H.H. Sutton Plumbing & Mechani | Eldorado,IL 62930 | (618) 273-3861 | |
| Heartland Mechanical Contracto | Murphysboro,IL 62966-0299 | (618) 684-3606 | (618) 684-3074 |
| Jen Mechanical, Inc. | Godfrey,IL 62035 | (618) 433-1720 | (618) 466-1720 |
| Kohnen Air Conditioning & Heat | Germantown,IL 62245 | (618) 523-4557 | (618) 523-4562 |
| GRP | WEGMAN Company | Bethalto,IL 62010-0188 | (618) 258-9000 | |
| A & R Mechanical Contractors, | Urbana,IL 61801 | (217) 367-4227 | (217) 367-4164 |
| Premier Fire & Security | Paducah,KY 42002-1037 | (270) 443-7060 | (270) 443-8048 |
| Triangle Enterprises, Inc. | Paducah,KY 42001-9111 | (270) 443-2424 | (270) 444-4994 |
| Culbertson Heating & Cooling, | Vandalia,IL 62471 | (618) 283-4679 | |
| FW Electric, Inc. & FW Plumbin | Benton,IL 62812-4541 | (618) 438-9191 | (618) 438-2002 |
| ENCORE Mechanical Insulation C | Jerseyville,IL 62052 | (618) 781-6563 | |