| GRP | WEGMAN Company | Bethalto,IL 62010-0188 | (618) 258-9000 | |
| MC Electric, Inc. | Red Bud,IL 62278 | (618) 282-7788 | |
| Pyramid Electrical Contractors | Fairview Heights,IL 62208 | (618) 632-1180 | (618) 632-1128 |
| Loyd Electric, L.L.C. | Sesser,IL 62884 | (618) 625-2333 | |
| Miller Electrical Contracting, | Salem,IL 62881 | (618) 335-6109 | |
| Kohrmann Electric Co., Inc. | Bartelso,IL 62218 | (618) 765-2345 | |
| Brown Electric, Inc. | Goreville,IL 62939 | (618) 995-2870 | (618) 995-2506 |
| FW Electric, Inc. & FW Plumbin | Benton,IL 62812-4541 | (618) 438-9191 | (618) 438-2002 |
| Kamex, Inc. | Pontoon Beach,IL 62040 | (618) 931-3760 | |
| J.F. Electric, Inc. | Edwardsville,IL 62025-0570 | (618) 797-5353 | (618) 797-5354 |
| Best Engineered Systems Techno | Goreville,IL 62939 | (618) 659-7610 | |