| WASTEWORX 2261049 · TMA1279552 | The Cleaning Supplies Company | 16 Paper | Registered | 2024 |
| WASTEWARE 2097490 | Wastequip, LLC | 6 Metal7 Machines9 Electronics+5 | Pending | 2021 |
| WESTWORLD 0381006 · TMA214787 | B.C.A.A. HOLDINGS LTD. | 16 Paper | Registered | 1976 |
| WESTHROID 2264262 · TMA1284832 | SPUD Holdings, LLC | 5 Pharmaceuticals | Registered | 2025 |
| WESTERNACHER 2151408 · TMA1214404 | Owner not shown | 9 Electronics35 Advertising41 Education+2 | Registered | 2023 |
| WishDirect 2150247 · TMA1204295 | WISH DIRECT INC | 21 Housewares | Registered | 2023 |
| WestRiver 2083278 · TMA1167068 | an individual | 11 Lighting | Registered | 2023 |
| WISEDRY 2080819 · TMA1163677 · design | an individual | 1 Chemicals | Registered | 2023 |
| WishStern 2080053 · TMA1164879 | an individual | 11 Lighting | Registered | 2023 |
| WESTERLY 2055958 · TMA1182441 | RESIDENCES OF WESTERLY INC. | 36 Finance37 Construction42 Science | Registered | 2023 |
| WASHTOWER 2052154 · TMA1283908 | an individual | 20 Furniture | Registered | 2025 |
| WECODUR 2041255 · TMA1165456 | HPL Technologies GmbH | 6 Metal7 Machines40 Treatment+1 | Registered | 2023 |
| WESTWARD 2019275 · TMA1264980 | RESIDENCES OF WESTERLY INC. | 35 Advertising36 Finance37 Construction | Registered | 2024 |
| WesternFreedom 2002631 · TMA1127155 | 2226094 Alberta Ltd. | 30 Coffee32 Beer | Registered | 2022 |
| WAKEWATER 1989870 · TMA1253418 | 12526883 Canada Inc. (dba Wakewater Beverage Company) | 32 Beer | Registered | 2024 |
| WESTERLY 1985010 · TMA1135492 | AS America, Inc. | 11 Lighting | Registered | 2022 |
| WOOSTAR 1979806 · TMA1124246 · design | an individual | 12 Vehicles | Registered | 2022 |
| WAXTREAT 1952244 · TMA1159778 | an individual | 1 Chemicals42 Science | Registered | 2023 |
| WOOSTER 1933470 · TMA1152244 · design | THE WOOSTER BRUSH COMPANY | 3 Cosmetics16 Paper21 Housewares | Registered | 2022 |
| WEXSTAR 1891335 · TMA1082630 | Spacio Innovations Inc. | 9 Electronics11 Lighting | Registered | 2020 |
| WISHTREND 1884167 · TMA1062129 | Wishcompany Inc. | 3 Cosmetics | Registered | 2019 |
| WESTROSE 1858498 · TMA1017102 | 9359-4547 QUÉBEC INC. | 30 Coffee35 Advertising43 Restaurants | Registered | 2019 |
| WESTAR 1794777 · TMA1019378 | WESTAR DISTRIBUTION, LLC | 35 Advertising39 Transport | Registered | 2019 |
| WISTERIA 1780912 · TMA981175 | DAVID YURMAN IP LLC | 14 Jewellery35 Advertising | Registered | 2017 |
| WESTWARD 1776943 · TMA996454 | House Spirits Distillery LLC, Delaware limited liability company | 33 Wine | Registered | 2018 |