| Business | Phone |
| A & H Enterprises 7006 Middlebrook Pike, Knoxville 37909 | (865) 330-0261 |
| Associated Fire Svc 500 Ambrose St, Knoxville 37921 | (865) 544-0018 |
| Tennessee Automatic Sprinkler 2729 Ball Camp Byington Rd, Knoxville 37931 | (865) 691-8738 |
| Century Fire Protection 6634 Central Avenue Pike # 106, Knoxville 37912 | (865) 689-8804 |
| Cherokee Sprinkler Co Inc 7531 Twin Creek Rd, Knoxville 37920 | (865) 573-7267 |
| Southeastern Fire Protection 4533 Cobblestone Cir, Knoxville 37938 | (865) 922-6025 |
| Concord Automatic Sprinklers 1843 Harvey Rd, Knoxville 37922 | (865) 675-3476 |
| Precision Fire Protection 9328 Camrose Ln, Knoxville 37931 | (865) 690-8869 |
| Morristown Automatic Sprinkler 1310 Karnes Ave, Knoxville 37917 | (865) 689-4480 |