| Willcraft Technologies Ltd | Alberta |
| William Stewart | British Columbia |
| Williams Communication Services Ltd | Ontario |
| Williams Telecommunications Corporation | Ontario |
| Willing Software | British Columbia |
| Willis College | Ontario |
| Willowglen Systems, Inc. | Alberta |
| Wilmot Technologies, Inc. | Ontario |
| Wilson's Business Solutions | Ontario |
| Wilsons Security | Nova Scotia |
| WimInfo | Quebec |
| Win2ix Systems, Inc. | Ontario |
| WinCatalog | British Columbia |
| WinCleaner | Ontario |
| Wincruise Systems | British Columbia |
| Wind-Net Computer Solutions, Inc. | Ontario |
| Winding River Solutions, Inc. | Alberta |
| WindRiver Power Corporation | |
| Windrose Web Design | Nova Scotia |
| Windsor Graphics | Alberta |
| Windsor Web Hosting | Ontario |
| Windsor Web Solutions.ca | Ontario |
| Windswept Integrated Technologies, Inc. | Ontario |
| Windward Software, Inc. | British Columbia |
| Wine Direct | British Columbia |
| Winfly Informatique, Inc. | Quebec |
| Wing-X Stol | |
| Wingenback, Inc. | Alberta |
| Wingspan Creative Communications | Nova Scotia |
| WinMac, Inc. | Ontario |
| WinMagic | Ontario |
| Winmate TTX | Ontario |
| Winnipeg Airports Authority | |
| Winnipeg Police Credit Union | |
| Winnipeg@Home | Manitoba |
| Winnotel Technology Co. Ltd | |
| WINR Games, Inc. | |
| Winsoft Software, Inc. | Ontario |
| WINstorm | |
| Wintel computers | Ontario |
| Winterlight Labs | |
| Wintertree Software | Ontario |
| Winterwind, Inc. | British Columbia |
| Wintronic Computers Plus | Ontario |
| Wiptec | Quebec |
| WipWare, Inc. | Ontario |
| Wire World Internet | Ontario |
| Wired 2000 Corporation | Ontario |
| Wired for the Future | |
| Wired Messenger, Inc. | Ontario |