| Business | Phone |
| Automatic Fire Control Inc 1708 Se 22nd St, Oklahoma City 73129 | (405) 677-7485 |
| Automatic Protection Systems 3817 S Missouri Ave, Oklahoma City 73129 | (405) 672-9666 |
| Casco Industries 3601 Nw 10th St, Oklahoma City 73107 | (405) 945-0400 |
| Fireco 3817 S Missouri Ave, Oklahoma City 73129 | (405) 619-3400 |
| Grinnell Fire Protctn Syst Co 2835 S Utah Ave, Oklahoma City 73108 | (405) 682-5316 |
| Southwest Fire Protection 308 Se 59th St, Oklahoma City 73129 | (405) 601-9778 |
| Sartin's Fire Equipment & Vent 3250 Delmar Rd, Oklahoma City 73115 | (405) 670-2442 |