| Business | Phone |
| Pci Data Systems 3761 Commerce Dr # 410, Halethorpe 21227 | (410) 242-8540 |
| Pro Tech Computers Svc Inc 1939 Lansdowne Rd, Halethorpe 21227 | (410) 242-5501 |
| Amtek Computer Svc 1500 Caton Center Dr # C, Halethorpe 21227 | (410) 247-7800 |
| Computer Cleaners Plus 4367 Hollins Ferry Rd # 2b, Halethorpe 21227 | (410) 247-7000 |
| Laser Serv 1581 Sulphur Spring Rd # 113, Halethorpe 21227 | (410) 247-8766 |