| Business | Phone |
| Access Control Systems Inc 410 Georgia St, Knoxville 37915 | (865) 546-2603 |
| Alarmtech Security Systems Knoxville 37923 | (865) 470-8777 |
| Walden Security 408 N Cedar Bluff Rd, Knoxville 37923 | (865) 470-2248 |
| Associated Security Consultant 7039 Maynardville Pike, Knoxville 37918 | (865) 922-3911 |
| Audio-Visual Communications 4124 Mckinley St, Knoxville 37917 | (865) 687-8400 |
| Bell South Security Systems 111 Center Park Dr, Knoxville 37922 | (865) 531-0889 |
| Sonitrol 529 N Gay St, Knoxville 37917 | (865) 637-3931 |
| Cantrell & Assoc 7554 Maynardville Pike # 103, Knoxville 37938 | (865) 922-2148 |
| Cash Transactions 7414 Strawberry Plains Pike, Knoxville 37924 | (865) 932-7820 |
| Protection One Knoxville 37919 | (865) 558-9943 |
| Eye Witness 431 Park Village Rd, Knoxville 37923 | (865) 769-0202 |
| Majors Security Corp 5444 Hilton Industrial Way, Knoxville 37921 | (865) 584-0410 |
| Icom Security Solutions 316 Nancy Lynn Ln, Knoxville 37919 | (865) 588-7638 |