| Business | Phone |
| 5r Computer Svc 12221 Parklawn Dr # 160, Rockville 20852 | (301) 881-5222 |
| A A Computer Supplies 15733 Crabbs Branch Way, Rockville 20855 | (301) 921-8287 |
| Acom Computers 932 Hungerford Dr # 40a, Rockville 20850 | (301) 294-9101 |
| American Business Machine Co Rockville 20852 | (301) 231-0993 |
| Tst Inc 4956 Wyaconda Rd, Rockville 20852 | (301) 881-8050 |
| City Computers 966 Hungerford Dr # 9a, Rockville 20850 | (301) 762-6880 |
| Compcamp Inc 12730 Twinbrook Pkwy, Rockville 20852 | (301) 984-8889 |
| Computer Extreme 1330 Veirs Mill Rd, Rockville 20851 | (301) 315-9294 |
| Computer Parts & Svc 966 Hungerford Dr, Rockville 20850 | (301) 251-2613 |
| Daob Holding Inc 15405 Reprise Ter, Rockville 20850 | (301) 661-3151 |
| Progressive Office Inc 622 Lincoln St, Rockville 20850 | (301) 309-1490 |
| Doctor Dos 11901 Ashley Dr, Rockville 20852 | (301) 881-8222 |
| Dynamic Difference 601 Dover Rd, Rockville 20850 | (301) 251-5490 |
| Micro Care Inc 330 N Stonestreet Ave # H, Rockville 20850 | (301) 294-5350 |
| International Computer Systems 10724 Gloxinia Dr, Rockville 20852 | (301) 881-9493 |