| Business | Phone |
| Telacomp Corp 14401 Weathered Barn Ct, Germantown 20874 | (301) 527-6077 |
| Comstor Inc 18928 Pine Ridge Ln, Germantown 20874 | (301) 972-1243 |
| Nerdboy Computer Svc 20 Father Hurley Blvd, Germantown 20874 | (301) 515-7980 |
| Hewlett-Packard Co 18047 Cottage Garden Dr, Germantown 20874 | (301) 528-9300 |