| Company Name | Software Titles |
|---|---|
| Xerox | 32 |
| Xilisoft | 15 |
| XP Systems | 14 |
| Xtranormal | 8 |
| X-Rite | 8 |
| Xceed Software | 7 |
| Xara Group | 6 |
| Xiph.Org | 3 |
| Xilinx | 3 |
| Xobni | 3 |
| Xcode | 3 |
| Xantech | 2 |
| Xequte Software | 2 |
| Xara | 2 |
| XviD Team Koepi | 2 |
| Xmarks | 2 |
| XaviWare Software | 2 |
| Xtravirt Limited | 2 |
| XIMETA | 2 |
| X1 Technologies | 2 |
| Xactware | 2 |
| XemiComputers | 2 |
| XING AG | 2 |
| Xamarin | 2 |
| Xanga.com | 1 |
| XenSource | 1 |
| Xumbrus | 1 |
| Xperience Consulting | 1 |
| xvid | 1 |
| Xirrus | 1 |
| XPInstall | 1 |
| Xeran | 1 |
| Xvid Team | 1 |
| XLnow | 1 |
| XpoLog | 1 |
| XLNTIdea | 1 |
| Xarios | 1 |
| XQDC | 1 |
| XESystems | 1 |
| XXXXXXXX | 1 |
| Xmark | 1 |
| Xarka Software | 1 |
| Xsd2Code | 1 |
| xHarbour.com | 1 |
| XyberSleuth | 1 |
| Xato Network Security | 1 |
| XSManager | 1 |
| Xiaoxi Zhang | 1 |
| Xymantix | 1 |
| XMeeting project | 1 |