| Business | Phone |
| Square D 408 N Cedar Bluff Rd, Knoxville 37923 | (865) 693-1500 |
| Consolidated Electrical Distr 807 Winona St, Knoxville 37917 | (865) 521-6262 |
| Dura-Line Corp 9110 Executive Park Dr, Knoxville 37923 | (865) 218-3460 |
| Fi Shock Inc 5360 N National Dr, Knoxville 37914 | (865) 524-7380 |
| Panasonic 5105 S National Dr, Knoxville 37914 | (865) 673-0700 |