| Business | Phone |
| P S Consultants Hyattsville 20781 | (301) 927-1368 |
| Rosetta Networking Systems Inc 5710 38th Ave, Hyattsville 20782 | (301) 985-1291 |
| American Computer Utopia 2781 Hamilton St, Hyattsville 20782 | (301) 559-0234 |
| Computer Sciences Corp 8400 Corporate Dr # 3, Hyattsville 20785 | (301) 429-3100 |
| Vecna Technologies 6525 Belcrest Rd, Hyattsville 20782 | (301) 864-7253 |
| Your Concepts Inc 6495 New Hampshire Ave # 170, Hyattsville 20783 | (301) 270-9240 |
| Zone Systems Inc 4806 68th Ave, Hyattsville 20784 | (301) 583-1700 |