| Company Name | Software Titles |
|---|---|
| Xteq Systems-dotec | 1 |
| Xteq Systems | 1 |
| XSManager | 1 |
| Xsd2Code | 1 |
| XQDC | 1 |
| XpoLog | 1 |
| XPInstall | 1 |
| Xperience Consulting | 1 |
| XP Systems | 14 |
| XP Software | 1 |
| XOsoft | 1 |
| xolido | 1 |
| Xobni | 3 |
| XnSoft | 1 |
| XMPie | 1 |
| XMLmind | 1 |
| XML Explorer | 1 |
| XMind | 1 |
| XMeeting project | 1 |
| Xmarks | 2 |
| Xmark | 1 |
| XLNTIdea | 1 |
| XLnow | 1 |
| Xirrus | 1 |
| Xiph.Org | 3 |
| Xingtone | 1 |
| XING AG | 2 |
| Xinet | 1 |
| XIMETA | 2 |
| Xilisoft | 15 |
| Xilinx | 3 |
| xiles | 1 |
| xIBL Software | 1 |
| xiberpix | 1 |
| Xiaoxi Zhang | 1 |
| xHarbour.com | 1 |
| XESystems | 1 |
| Xerox | 32 |
| Xeran | 1 |
| Xequte Software | 2 |
| XenSource | 1 |
| XenApp | 1 |
| XemiComputers | 2 |
| Xdrive | 1 |
| Xcode | 3 |
| XcelleNet, Inc. | 1 |
| Xceed Software | 7 |
| Xceed | 1 |
| Xcarab | 1 |
| XaviWare Software | 2 |