| Company Name | Software Titles |
|---|---|
| ACL Software | 2 |
| ACL Services | 2 |
| ACL | 2 |
| Acksen | 2 |
| ACI Services | 1 |
| ACI | 4 |
| acgme | 1 |
| ACG | 3 |
| AcezSoft | 2 |
| Acez Software | 10 |
| Acesoft | 1 |
| AceSmileys | 1 |
| Acertant | 1 |
| Acer Crystal Eye Webcam | 1 |
| Acer | 50 |
| Acelogix Software | 1 |
| Acelogix | 1 |
| Aceeca | 1 |
| ACECO | 1 |
| ACECAD | 2 |
| AceBus | 1 |
| AceBIT | 4 |
| ACE DESIGN Software | 1 |
| ACD-Labs | 6 |
| ACD Systems | 17 |
| AccuZIP | 2 |
| AccuWeather.com | 1 |
| AccuWeather | 8 |
| AccuTracking | 1 |
| Accutel | 1 |
| Accusystems | 1 |
| AccuStudio | 1 |
| AccuSolve | 1 |
| AccuSoft Enterprises | 1 |
| AccuSoft | 3 |
| AccuRev | 1 |
| Accurate Image Marketing | 1 |
| Accurate Image | 1 |
| AccuProcess | 1 |
| Acculog | 1 |
| AccuFund | 1 |
| Accubid | 6 |
| Accretech | 1 |
| ACCPAC International | 2 |
| Accountable Software, Datacuity | 2 |
| Accountable Software | 1 |
| Accordiva | 1 |
| Accord.NET | 1 |
| Accord Software & Systems | 2 |
| Accoona | 2 |