| Business | Phone |
| Aasco 7625 Francis Rd, Glen Burnie 21060 | (410) 766-8336 |
| Allsafe Home Security 6424 Polk Cir, Glen Burnie 21061 | (410) 863-1456 |
| D & S Security Systems 307 4th Ave Se, Glen Burnie 21061 | (410) 761-4433 |
| Olympic Alarm Inc 2301 Dorsey Rd, Glen Burnie 21061 | (410) 768-1460 |
| Security Watch Corp 7440 Ritchie Hwy, Glen Burnie 21061 | (410) 768-6316 |
| Trojan Alarm Solutions Inc 508 Mccormick Dr, Glen Burnie 21061 | (410) 863-1434 |