| XRPeds | Connecticut |
| XRVZN | Maryland |
| XS Consulting Group | Minnesota |
| XS International | Georgia |
| XS Media | Oregon |
| XS Supply | |
| XSB, Inc. | New York |
| Xscape Photonics | |
| Xscode | Alaska |
| XSeed Capital | California |
| XSEED Games | California |
| Xsell Resources | Pennsylvania |
| Xsite Digital, Inc. | Florida |
| XSoft | Indiana |
| XSoft Group, Inc. | |
| Xsolla (USA), Inc. | California |
| Xsolla Backend | |
| XSolutions Consulting Services, LLC | New York |
| XSpand, LLC | Florida |
| Xsphera Biosciences, Inc. | Massachusetts |
| xSQL Software | Georgia |
| Xssentials | Colorado |
| Xstim, Inc. | |
| Xstreme Media | Kentucky |
| Xsys, Inc. | Illinois |
| XT Capital Partners, LLC | Connecticut |
| XtalPI, Inc. | |
| Xtant Medical | Montana |
| Xtapps | Missouri |
| Xtapps | |
| XTAR | Virginia |
| XTEC, Inc. | Kansas |
| Xtel Communications | New Jersey |
| XTEN-AV, LLC | |
| Xtend | |
| Xtend AI | Florida |
| Xtendly, LLC | |
| Xtenit | New York |
| Xtensio, Inc. | California |
| Xtenti, LLC | |
| Xtenxion | California |
| Xtera | Texas |
| Xtern Software, Inc. | North Carolina |
| XTGlobal, Inc. | Texas |
| xTiles | |
| Xtime, Inc. | California |
| XTIUM | Florida |
| XTIVIA, Inc. | Colorado |
| XTK Systems | Pennsylvania |
| Xtramayo Design | Texas |