| Business | Phone |
| Ultra Systems 2700 S Roan St # 211b, Johnson City 37601 | (423) 975-9327 |
| Us Innovations 2266 N Roan St, Johnson City 37601 | (423) 283-1073 |
| Blue Star Systems Inc 602 N Roan St, Johnson City 37601 | (423) 975-6840 |
| Saratoga Technologies Inc 101 Med Tech Pkwy, Johnson City 37604 | (423) 282-4220 |
| Saratoga Technologies Inc 503 Princeton Rd, Johnson City 37601 | (423) 928-3402 |
| Computer Connection 207 N Boone St # 2000, Johnson City 37604 | (423) 434-9590 |
| Computer Nerds 127 Wellington Ct, Johnson City 37615 | (423) 477-2008 |
| Networking & Computers 208 N Roan St, Johnson City 37601 | (423) 975-0273 |
| J W Er Computer Networking 219 Circleview Dr, Johnson City 37615 | (423) 477-3335 |
| Logan Computing Inc 3915 Bristol Hwy # 103, Johnson City 37601 | (423) 610-0101 |