| Business | Phone |
| Calcom Inc 8090 Snowville Rd, Cleveland 44141 | (440) 838-1717 |
| Continental Fire & Security 5505 Valley Belt Rd # A, Cleveland 44131 | (216) 749-5522 |
| Tec Rep Inc 6020 Memphis Ave, Cleveland 44144 | (216) 741-3537 |
| Tom Naughton Assoc Inc 22389 Parkedge Cir, Cleveland 44126 | (440) 779-6321 |
| Fire Alarm Pro 6133 Rockside Rd, Cleveland 44131 | (216) 901-0968 |
| Fire Communications 3367 W 105th St, Cleveland 44111 | (216) 251-4949 |
| Paladin Protective Systems Inc 4090 E 91st St, Cleveland 44105 | (216) 441-6500 |
| National Firesafety Systems 1325 E 260th St, Cleveland 44132 | (216) 261-9200 |