| Xelerance Corporation | Ontario |
| Xello, Inc. | |
| Xelys | Quebec |
| Xenex Enterprises, Inc. | Ontario |
| Xenium IT Corporation | |
| Xeno Games | Quebec |
| Xenoom Technologies | Quebec |
| Xentrax | Ontario |
| Xeo Marketing & Strategic Consultancy, Inc. | Ontario |
| Xeos Technologies, Inc. | Nova Scotia |
| Xerox Canada | Ontario |
| XGen Studios, Inc. | Alberta |
| XGestion, Inc. | Quebec |
| Xguru | Ontario |
| XI Digital | Ontario |
| xiBOSS Corporation | Ontario |
| XiiTec IT Solutions, Inc. | British Columbia |
| Xilligence | Ontario |
| Xiphos Systems Corporation | Quebec |
| Xittel | Quebec |
| xix3D | |
| XllenTech Solutions, Inc. | |
| XLPub, Inc. | Quebec |
| XLSCOUT | |
| xMac informatique et communications, Inc. | Quebec |
| XMachina | |
| XMedius | Quebec |
| XMetaL | British Columbia |
| XMG Studio, Inc. | Ontario |
| Xn Québec | Quebec |
| Xod Media | Ontario |
| Xogenus | Ontario |
| Xona Games, Inc. | |
| XOPHOS Conseils Canada | Quebec |
| Xorlogics | British Columbia |
| Xorosoft | British Columbia |
| Xpan | Alberta |
| Xpan, Inc. | |
| Xpasoft Technologies | |
| XPC Web Hosting | British Columbia |
| Xperigo | |
| Xperio Labs Ltd | |
| Xpertics solutions, Inc. | Quebec |
| Xpertkeyboard | British Columbia |
| Xplor Canada Association | Ontario |
| Xplore, Inc. | |
| Xplornet Communications, Inc. | New Brunswick |
| XPMsoftware, Inc. | Ontario |
| xPosito | Quebec |
| XPR Labs, Inc. | |