| Business | Phone |
| Absolute Protection 11020 Kingston Pike # 270, Knoxville 37934 | (865) 675-6800 |
| Abstract Security Inc 11145 Outlet Dr, Knoxville 37932 | (865) 966-2525 |
| Advanced Alarm Systems Knoxville 37923 | (865) 694-5059 |
| Alarm Services Co 7119 Afton Dr, Knoxville 37918 | (865) 922-1663 |
| Alarms Unlimited 523 N Gay St # 101, Knoxville 37917 | (865) 688-7442 |
| All American Alarms 5612 Kingston Pike, Knoxville 37919 | (865) 539-3456 |
| Telesystems 6012 Centerwood Dr, Knoxville 37920 | (865) 689-6706 |
| South-Eastern Alarms 1501 Mcclain Dr # 11, Knoxville 37912 | (865) 689-6442 |
| Safe T Security & Electronics 117 Center Park Dr # 215, Knoxville 37922 | (865) 693-0095 |
| Safe T Security & Electronics 2051 Castaic Ln, Knoxville 37932 | (865) 693-0095 |
| Ets Communications 5618 N Broadway St, Knoxville 37918 | (865) 689-5362 |
| First Response Of Tenn Llc 155 Sherway Rd # 3, Knoxville 37922 | (865) 560-8686 |
| Fleenor Security Systems 10446 Cogdill Rd, Knoxville 37932 | (865) 966-5507 |
| Liberty Security Systems Inc 10629 Lone Star Way, Knoxville 37932 | (865) 966-3847 |
| Life & Property Security Systm 10820 Kingston Pike, Knoxville 37934 | (865) 671-1331 |
| Independent Security Systems 8309 Santa Fe Trl, Knoxville 37919 | (865) 690-0154 |
| Intercall Systems 509 N Cedar Bluff Rd, Knoxville 37923 | (865) 691-5856 |
| Knight Security Svc 7713 Sagefield Dr, Knoxville 37920 | (865) 609-2000 |