| WORKTRUK 1751321 · TMA967047 · design | an individual | 9 Electronics35 Advertising38 Telecommunications | Registered | 2017 |
| WORKKIT 1665140 · TMA929679 | Chico's Brands Investments, Inc. | 25 Clothing | Registered | 2016 |
| WORKSITE 1080785 · TMA576672 | TAI LUNG (CANADA) LTD. a corporation incorporated under the laws of the Province of Ontario | 25 Clothing | Registered | 2003 |
| WORKSTEPS 2190795 | WorkSTEPS, Inc. | 35 Advertising44 Medical45 Legal | Pending | 2022 |
| WORKTHRU 2043235 | S.i. Systems ULC | 35 Advertising38 Telecommunications41 Education+1 | Pending | 2020 |
| WORKTECH 2276436 · TMA1261996 | SOCIÉTÉ HUMANFASHIONATION INC. | 9 Electronics25 Clothing | Registered | 2024 |
| WYRESTORM 2221797 · TMA1252485 · design | Wyrestorm Technologies Limited | 9 Electronics | Registered | 2024 |
| WERCSTAR 2130238 · TMA1234359 | Fruvac Ltd. | 7 Machines | Registered | 2024 |
| WORKATO 2083874 · TMA1198636 | WORKATO, Inc. | 9 Electronics42 Science | Registered | 2023 |
| WARGATE 2048591 · TMA1283901 · design | 9416-3441 Québec inc. | 9 Electronics18 Leather25 Clothing+2 | Registered | 2025 |
| WearSeed 2033701 · TMA1268041 | an individual | 6 Metal | Registered | 2024 |
| WORKTRIC. 2016218 · TMA1135620 · design | Worktric Inc. | 9 Electronics42 Science | Registered | 2022 |
| WORKTRIC 2015941 · TMA1134874 | Worktric Inc. | 9 Electronics42 Science | Registered | 2022 |
| WRISTWIDGET 1916689 · TMA1093884 | an individual | 10 Medical | Registered | 2021 |
| WORKSTORM 1900205 · TMA1088657 | WORKSTORM.COM LLC | 9 Electronics42 Science | Registered | 2020 |
| WERKSTAR 1885307 · TMA1073950 | Werksitz GmbH W. Milewski | 20 Furniture | Registered | 2020 |
| WORKTOPIA 1844535 · TMA1022395 | The Sinneave Family Foundation | 41 Education44 Medical45 Legal | Registered | 2019 |
| WORKXID 1843988 · TMA1068079 · design | XIDCORP LIMITED | 42 Science | Registered | 2020 |
| WORKXID 1843987 · TMA1046731 | XIDCORP LIMITED | 42 Science | Registered | 2019 |
| WRECKED 1730438 · TMA939577 | Fox Media LLC | 41 Education | Registered | 2016 |
| WRIST 1710040 · TMA955671 | Owner not shown | 35 Advertising39 Transport | Registered | 2016 |
| wrestlers 1706296 · TMA932064 | 8167087 Canada Limited | 12 Vehicles18 Leather21 Housewares+10 | Registered | 2016 |
| wrightmoment 1668960 · TMA917961 | an individual | 16 Paper41 Education | Registered | 2015 |
| WARSTEINER 1753 1666094 · TMA965374 · design | Owner not shown | 32 Beer | Registered | 2017 |
| WRECKATEER 1569570 · TMA899236 | Microsoft Corporation | 9 Electronics | Registered | 2015 |