| ExportDoc | Ontario |
| Exposoft | Ontario |
| Express Systems & Parts Net | British Columbia |
| Express Web Agency | Ontario |
| ExPretio | Quebec |
| Exquison Marketing | |
| Extanet | Ontario |
| Extel Communications and Cabling | Ontario |
| Extend Communications, Inc. | Ontario |
| Extensible Point Solutions, Inc. | Ontario |
| Extergy | Quebec |
| Exterra | |
| eXtra Contact | British Columbia |
| Extra Dimension Games | |
| Extracomm, Inc. | Ontario |
| Extreme Accelerator, Inc. | Ontario |
| Extreme Gamer | Quebec |
| Extreme Optimization | Ontario |
| Extreme PC | Ontario |
| Extreme Tech | |
| Extreme Venture Partners | |
| Exware Solutions, Inc. | British Columbia |
| Eyam Health | |
| Eye Mean Graphics Ltd | British Columbia |
| Eye T Consulting | |
| Eye-In Media | Quebec |
| Eyedia Marketing & Design | Ontario |
| Eyelit | Ontario |
| EyeLook | Ontario |
| eyeQ CRM | Ontario |
| EyeQ Imaging, Inc. | Alberta |
| Eyereturn Marketing | Ontario |
| Eyes Everywhere IT Consulting | Ontario |
| Eyesover | |
| Eyesurf Corporation | Ontario |
| Eyetoeye Design | |
| Ez Custom Software Solutions, Inc. | Ontario |
| EZ Ops, Inc. | |
| EZ Results | Ontario |
| EZ Tech Consulting | |
| EZ-Robot | |
| EZ-Ship Softwares | |
| EZ5 Systems Ltd | British Columbia |
| EzeAD | |
| EZI Technologies, Inc. | Ontario |
| Ezone Systems | British Columbia |
| EzoTech, Inc. | |
| EZSoftTech.com | Ontario |
| F1 Computer Services | British Columbia |
| F12.net | Alberta |