| ClearEvent, Inc. | Ontario |
| Clearly InSight | Manitoba |
| Clearly Payments, Inc. | |
| ClearlyCore | Ontario |
| Clearmind Medicines, Inc. | |
| Clearmotive | Alberta |
| ClearOS | Ontario |
| ClearPath Digital | British Columbia |
| Clearpath Robotics | |
| Clearpath Robotics, Inc. | |
| ClearPC.ca | British Columbia |
| ClearPicture | Nova Scotia |
| ClearRisk, Inc. | Newfoundland and Labrador |
| Clearview | |
| Clearview Business Solutions, Inc. | Ontario |
| Clearwave Electronics | Ontario |
| Cleffex Digital Ltd | |
| CLEIO | |
| Clemex | Quebec |
| Clever Calico | |
| Clever Endeavour Games | Quebec |
| Clever IT | |
| Clever Plays | Quebec |
| Clevercodes | British Columbia |
| CleverNet Multimedia | Ontario |
| Clicappel Canada Communications | Ontario |
| Click 'n Fix Computer Expert | |
| Click Armor Corporation | Ontario |
| Click Capital Corporation | |
| Click Star Marketing | |
| Click-Into, Inc. | Ontario |
| Click.Inspire Solutions | |
| Click2Order | |
| Clicked by Design Marketing Solutions | New Brunswick |
| ClickHelp | Ontario |
| ClickInsight | Ontario |
| Clickom | |
| Clickon Mac Solutions | Ontario |
| ClickRight Computer Solutions | British Columbia |
| Clickspace Interactive | Alberta |
| clickTributes | British Columbia |
| Clickwave | |
| ClicNet Telecommunications, Inc. | Quebec |
| Clicpro | Quebec |
| ClicShop | Quebec |
| ClicShopping | Quebec |
| Client Track | |
| ClientServ Technologies, Inc. | British Columbia |
| ClientSide Concepts Development, Inc. | Yukon |
| ClientWeb | Quebec |