| Name
| Country
| Market Cap (US$)
|
|---|
| American Megatrends, Inc. | United States | Private |
| American TeleCare, Inc. | United States | Private |
| Ameritech Information Industry Srvcs | United States | Private |
| Ameritech Library Services, Inc. | United States | Private |
| Amicore, Inc. | United States | Private |
| Amisys Managed Care Systems, Inc. | United States | Private |
| Amisys Synertech, Inc | United States | Private |
| Amphus, Inc. | United States | Private |
| Amplexus Corporation | United States | Private |
| Amplicon Liveline Limited | United Kingdom | Private |
| AMS Group | United States | Private |
| AMX International, Inc. | United States | Private |
| Anadigm, Inc. | United States | Private |
| Analytical Graphics, Inc. | United States | Private |
| ANALYTICi, Inc. | United States | Private |
| Andromeda Entertainment | United Kingdom | Private |
| Andyne Computing Ltd. | Canada | Private |
| Ansotech Inc. | United States | Private |
| Antarctica Systems, Inc. | Canada | Private |
| Antenna Software, Inc. | United States | Private |
|