| Waterloo Region Small Business Centre | Ontario |
| WaterPower Canada | |
| Waterstreet Technology Group, Inc. | British Columbia |
| WaterWerks | Newfoundland and Labrador |
| Watsec Cyber Risk Management | Ontario |
| Wattech Web | Quebec |
| Wattpad | Ontario |
| WaudWare, Inc. | Ontario |
| Wave Accounting, Inc. | Ontario |
| WaveBase, Inc. | |
| Wavepoint M&A, Inc. | Ontario |
| Waverley Pharma, Inc. | |
| Waverly | |
| Waves In Space | Ontario |
| Wavetrak Electronics Ltd | Alberta |
| Wavo | |
| Waxworks Creative | Ontario |
| WayTo Integration and Consulting, Inc. | Alberta |
| WaZa Mobile Device Management | |
| WbC Design | Quebec |
| WBM Technologies, Inc. | Saskatchewan |
| WCG:ITX | |
| WDI Graphics | Ontario |
| WDS Solutions, Inc. | Alberta |
| We Are Wearables | Ontario |
| We Build Great Websites | Ontario |
| We Develop | Ontario |
| We Improve Search Engine Rankings | British Columbia |
| We Know Training | |
| We Make Stuff Happen | British Columbia |
| We the Collective | British Columbia |
| We Think Solutions, Inc. | Ontario |
| We Work Remotely | British Columbia |
| WE3 Solutions | British Columbia |
| Wealth One Bank of Canada | Ontario |
| Wealthica Financial Technology, Inc. | |
| Wealthsimple Technologies, Inc. | |
| Weather Innovations, L.P. | |
| Weave Digital | |
| Web & Creativity | Quebec |
| Web Alchemy Concepts | Ontario |
| Web and Marketing Studio | |
| Web Candy Design | |
| Web Code Tools | |
| Web Community Resource Networks | Ontario |
| Web Creative Designs | Ontario |
| Web Creatr | |
| Web Design Chilliwack | British Columbia |
| Web Design Corp Toronto | |
| Web Design Pro | Nova Scotia |