| Business | Phone |
| Lock Technology Inc 6505 Mid Cities Ave, Beltsville 20705 | (301) 931-0070 |
| N & D Auto Lock Specialist 10402 46th Ave # 101, Beltsville 20705 | (301) 937-4999 |
| R C's Lock & Key Beltsville 20705 | (301) 937-4411 |
| Usa Lock Beltsville 20705 | (301) 725-5469 |
| Ace Door & Key Services 11750 Baltimore Ave Ste A, Beltsville 20705 | (301) 660-3583 |