1. 
MARSH DATA SYSTEMS
2. MCKISSOCK DATA SYSTEMS
3. MICROWAVE DATA SYSTEMS
4. MILLENNIUM DATA SYSTEMS
5. MIZELL DATA SYSTEMS
6. MOBILE DATA SYSTEMS
7. OLIVER DATA SYSTEMS
8. ONCOLOGY DATA SYSTEMS
9. OSPREY DATA SYSTEMS
10. PALADIN DATA SYSTEMS
11. PROGRESSIVE DATA SYSTEMS
12. PROMETHEUS DATA SYSTEMS
13. REMOTE DATA SYSTEMS
14. RESOURCE DATA SYSTEMS
15. RPM DATA SYSTEMS
16. RTL DATA SYSTEMS
17. SANDPIPER DATA SYSTEMS
18. SCIENTIFIC DATA SYSTEMS
19. SEMANTIC DATA SYSTEMS
20. SIMPLIFIED DATA SYSTEMS
21. STRATEGIC DATA SYSTEMS
22. STRATEGIC DATA SYSTEMS
23. TAMPA DATA SYSTEMS
24. TAPESTRY DATA SYSTEMS
25. TAYLOR DATA SYSTEMS
26. TC DATA SYSTEMS
27. TITAN DATA SYSTEMS
28. TRAQUAIR DATA SYSTEMS
29. TRITON DATA SYSTEMS
30. TYCHO DATA SYSTEMS
31. UNITRONIX DATA SYSTEMS
32. VOICE & DATA SYSTEMS
33. WHITECO DATA SYSTEMS
34. WILLAMETTE DATA SYSTEMS
35. WOLFE DATA SYSTEMS