| Business | Phone |
| Falcon Security Inc 13365 Michigan Ave, Dearborn 48126 | (313) 943-4200 |
| Guardsmark Inc 4 Parklane Blvd, Dearborn 48126 | (313) 271-1253 |
| Stealth Security Dearborn 48126 | (313) 323-6000 |
| Securitas Security Svc Usa Inc 3 Parklane Blvd 1130, Dearborn 48126 | (313) 982-9243 |