| WHATcorp Ltd | Ontario |
| Whatever Solutions & Media | Ontario |
| whatIf? Technologies, Inc. | Ontario |
| Whatifi | |
| Whetham Solutions | Ontario |
| Whirl, Inc. | Ontario |
| Whisky Echo Bravo | Quebec |
| Whistler Web Design Ltd | British Columbia |
| White Box Robotics | Ontario |
| White Label Services | Quebec |
| White Mountain Software | Saskatchewan |
| White Rock Consulting & Communications | Newfoundland and Labrador |
| White Whale Analytics Ltd | |
| WhiteBark | British Columbia |
| Whitecap Canada | Ontario |
| Whitecap Resources, Inc. | |
| Whitecap Scientific Corporation | Newfoundland and Labrador |
| Whitecap Venture Partners | Ontario |
| Whitespark | Alberta |
| Whitewolf Design & Copy | British Columbia |
| WhizzTesting | Ontario |
| whos.amung.us, Inc. | Alberta |
| Wi-Com Solutions | |
| Wibicom, Inc. | Quebec |
| Wicked Interactive Ltd | Ontario |
| Wider Funnel | British Columbia |
| WiDR, Inc. | Alberta |
| Wieland Electric Canada | Ontario |
| WIFI Computers | Ontario |
| Wifidelity | Ontario |
| Wightman Telecom | Ontario |
| Wil-Tech Software Ltd | Saskatchewan |
| WiLAN | Ontario |
| Wilcom Systems Ltd | Ontario |
| Wild Blueberry Games | |
| Wild Canary Solutions | Ontario |
| Wild Peek Design | Saskatchewan |
| Wild Rose IT | Alberta |
| Wild Web | Quebec |
| WildApricot | Ontario |
| WildBrain | |
| Wildfire Web Design & Development | |
| Wildwing Technology, Inc. | Nova Scotia |
| Wildwood Canada | Ontario |
| Wilfrid Laurier University | Ontario |
| Wilfrid Laurier University | |
| Wilfrid Laurier University - Mathematics | Ontario |
| Wilfrid Laurier University - Physics and Computer Science | Ontario |
| Wilkor Computing Services, Inc. | Alberta |
| WillBeCoded | |