| Index | X0 | XA | XB | XC | XD | XE | XF | XG | XH | XI | XJ | XK | XL | XM | XN | XO | XP | XQ | XR | XS | XT | XU | XV | XW | XX | XY | XZ | Home |
| Company | Country | Branch |
| XAAR | United Kingdom | Electronics |
| Xansa | United Kingdom | IT Service |
| XATA Corporation | USA | |
| XCare.net, Inc. | USA | |
| Xceed, Inc. | USA | |
| Xcelera.com, Inc. | USA | |
| Xeikon, N.V. | Netherlands | |
| Xenova Group | United Kingdom | Pharmaceuticals |
| Xerox | USA | Electronics |
| XETA Technologies, Inc. | USA | |
| XeTel Corporation | USA | |
| Xicor, Inc. | USA | |
| Xilinx, Inc. | USA | Electronics |
| Xircom, Inc. | USA | |
| XKO Group | United Kingdom | Software |
| XL Capital | Bermuda | Finance |
| XM Satellite Radio Holdings Inc. | USA | |
| Xoma Ltd. | USA | |
| Xpedian | USA | Finance |
| Xpedior Incorporated | USA | |
| Xpertise Group | United Kingdom | Others |
| Xplore Technologies | Canada | Computer |
| X-Rite, Incorporated | USA | |
| Xybernaut Corporation | USA |
| Index | X0 | XA | XB | XC | XD | XE | XF | XG | XH | XI | XJ | XK | XL | XM | XN | XO | XP | XQ | XR | XS | XT | XU | XV | XW | XX | XY | XZ | Home |