| Business | Phone |
| Coact Inc 9140 Guilford Rd # G, Columbia 21046 | (301) 498-0150 |
| Complete Computing Svc 10495 Fair Oaks, Columbia 21044 | (410) 772-1023 |
| Platform Computing Inc 8830 Stanford Blvd, Columbia 21045 | (410) 290-0105 |
| Select Computing Inc 9841 Brokenland Pkwy # 202, Columbia 21046 | (410) 381-0082 |