| Business | Phone |
| Paramount Marketing Inc 11433 Cronridge Dr # K2, Owings Mills 21117 | (410) 356-9420 |
| Communications Electronics Inc 9400 Reisterstown Rd, Owings Mills 21117 | (410) 356-7800 |
| Global Cellular 10300 Mill Run Cir, Owings Mills 21117 | (410) 356-0744 |