| Business | Phone |
| Application Outfitters 11100 Dovedale Ct, Marriottsville 21104 | (410) 442-7740 |
| Atl Products Inc Marriottsville 21104 | (410) 442-0401 |
| Joseph B Fay Co 11660 Marriottsville Rd, Marriottsville 21104 | (410) 203-1484 |
| Marion Hall 1525 Marriottsville Rd, Marriottsville 21104 | (410) 442-8015 |
| Pioneer Standard Ele 11333 Barley Field Way, Marriottsville 21104 | (410) 442-2149 |
| Professionals On Request Ltd 2205 Warwick Way, Marriottsville 21104 | (410) 750-0000 |