| Business | Phone |
| Maron Computer Svc 7900 Old Branch Ave, Clinton 20735 | (301) 868-1500 |
| Mc Millan & Assoc 7801 Old Branch Ave, Clinton 20735 | (301) 877-4940 |
| Compu Ment 7104 Killarney St, Clinton 20735 | (301) 868-0298 |
| Enlightened Inc 11511 Piscataway Rd, Clinton 20735 | (301) 203-7658 |