| Business | Phone |
| Atlantic Home Security 10320 Little Patuxent Pkwy, Columbia 21044 | (410) 715-1122 |
| Cook International 5659 Thicket Ln, Columbia 21044 | (410) 992-7318 |
| Laurel Locksmith & Safe Po Box 173, Columbia 21045 | (301) 498-2100 |
| Security Options & Solutions Columbia 21044 | (410) 740-7466 |
| Sunstorm Security Group 8990 Route 108, Columbia 21045 | (410) 997-1100 |