| Company Name | Software Titles |
|---|---|
| Clipsal Integrated Systems | 6 |
| COWON | 5 |
| CubexSoft Technologies | 5 |
| ComputerAssociates | 5 |
| Canopus | 5 |
| Calyx Software | 5 |
| CapaSystems A-S | 5 |
| CT Summation | 5 |
| Canary Labs | 5 |
| Citeknet | 4 |
| CS Odessa | 4 |
| Coremetrics | 4 |
| ChoicePoint | 4 |
| Colin Harrison | 4 |
| Compliance Systems | 4 |
| CASIO | 4 |
| Camtech | 4 |
| Computer | 4 |
| ContMedia | 4 |
| ConeXware | 4 |
| Cypherix | 4 |
| CareerTrack | 4 |
| ClickView | 4 |
| Cmotech | 4 |
| Chikka Asia | 4 |
| Centrify | 4 |
| CompanionLink | 4 |
| Creative Home | 4 |
| Camera Maker | 4 |
| company | 4 |
| Cognex | 4 |
| Cogniview | 4 |
| Clarity Systems | 4 |
| Citect | 4 |
| Caligari | 4 |
| CodeSmith Tools | 4 |
| Cognos Incorporated | 4 |
| Caliper | 3 |
| ChristianSteven Software | 3 |
| CSC | 3 |
| Capital IQ | 3 |
| Cedrick Collomb | 3 |
| Cardiac Science | 3 |
| Control4 | 3 |
| Compumedics Limited | 3 |
| ConnectWise | 3 |
| CommunityViz | 3 |
| Cingular | 3 |
| CRYPTOCard | 3 |
| Cardinal Health | 3 |