| Business | Phone |
| Midway Alarms Inc 309 Carroll Ave, Laurel 20707 | (301) 490-0973 |
| Msc Electronics Laurel 20707 | (301) 497-1600 |
| Midway Alarms Inc 10 N 2nd St, Laurel 20723 | (301) 490-6915 |
| American Home Security Inc 13207 Clarington Ct, Laurel 20708 | (301) 604-0045 |
| Taylor Alarm 13 C St, Laurel 20707 | (301) 317-9802 |
| Crimpco Laurel 20707 | (301) 953-9661 |