| X4Impact, Inc. | Washington |
| X5 Software | California |
| X5 Studios, Inc. | Florida |
| X8, LLC | Maryland |
| Xact Data Discovery | Kansas |
| Xact IT Solutions | New Jersey |
| Xact TeleSolutions | Florida |
| Xactly Corporation | California |
| Xactware Solutions, Inc. | Utah |
| Xage, Inc. | California |
| Xailient, Inc. | California |
| Xaira | |
| Xairos Systems, Inc. | Colorado |
| Xanatek | Indiana |
| Xandar Kardian, Inc. | |
| Xandex, Inc. | California |
| Xandr, Inc. | New York |
| XanEdu Publishing, Inc. | Michigan |
| Xanga | New York |
| Xano | California |
| XANT, Inc. | Utah |
| Xanté Corporation | Alabama |
| Xantel, Inc. | Minnesota |
| Xantrion | California |
| Xapnet Productions | California |
| Xapo | California |
| XAPP AI | District of Columbia |
| XAPT Corporation | Florida |
| Xaptum, Inc. | Illinois |
| Xatabase, Inc. | California |
| Xaviant, LLC | Georgia |
| Xavier University - Computer Science | Ohio |
| Xavier University - Mathematics | Ohio |
| Xavier University of Louisiana | Louisiana |
| Xavier University of Louisiana - Computer Science Department | Louisiana |
| Xavor Corporation | California |
| Xaxis, LLC | New York |
| XB Software Ltd | Virginia |
| xBiologix, Inc. | Oregon |
| XBiotech USA, Inc. | Texas |
| XBLUE Networks, LLC | Kansas |
| XBOSoft Ltd | California |
| XBRL International, Inc. | District of Columbia |
| xByte Technologies | Florida |
| Xcase | New York |
| Xcast Labs | California |
| xCBL | Missouri |
| Xccelero, Inc. | Arkansas |
| XCEL Federal Credit Union | |
| XCEL Solutions Corporation | New Jersey |