| Business | Phone |
| A-1 Keymasters Safe & Lock Redford 48239 | (313) 562-2504 |
| Locktech Inc 9591 Columbia, Redford 48239 | (313) 937-2070 |
| Howard Safe Co 26577 Grand River Ave, Redford 48240 | (313) 535-2200 |
| Redford Lock Inc 26515 Grand River Ave, Redford 48240 | (313) 535-0400 |