| WESTECH 1199332 · TMA677659 | Timken Gears & Services Inc. | 7 Machines12 Vehicles37 Construction+1 | Registered | 2006 |
| WESTECH 0785965 · TMA520324 | Westech Building Products, Inc. | 19 Building | Registered | 1999 |
| WESTEC 1247539 · TMA657965 | Society of Manufacturing Engineers | 41 Education | Registered | 2006 |
| WASTECH 0632710 · TMA370764 | WASTECH SERVICES LTD. | 39 Transport40 Treatment | Registered | 1990 |
| WESTEC 0498832 · TMA304301 | THE WESTEC SECURITY GROUP, INC. | 37 Construction42 Science44 Medical+1 | Registered | 1985 |
| WESTEC 0498831 · TMA304300 | THE WESTEC SECURITY GROUP, INC. | 9 Electronics | Registered | 1985 |
| WASATCH 2275039 · design | Monster Brewing Company LLC | 32 Beer33 Wine43 Restaurants | Pending | 2023 |
| WASATCH 2275036 | Monster Brewing Company LLC | 33 Wine43 Restaurants | Pending | 2023 |
| WESTCO 2001968 · TMA1123919 | BakeMark USA LLC | 29 Meat30 Coffee | Registered | 2022 |
| WESTEX 1756532 · TMA973357 | MILLIKEN & COMPANY | 24 Textiles | Registered | 2017 |
| WESTICK 1681295 · TMA930284 · design | Excel Prix Grossiste en Alimentation inc. | 29 Meat | Registered | 2016 |
| WESTAC 1382472 · TMA746514 | Western Transportation Advisory Council, a legal entity | 35 Advertising39 Transport41 Education | Registered | 2009 |
| WESTCO 1282900 · TMA685954 | Congebec Inc. | 39 Transport | Registered | 2007 |
| WESTCO° 1268076 · TMA686654 · design | Congebec Inc. | 39 Transport | Registered | 2007 |
| WESTEX 1164667 · TMA607423 · design | 1754523 Ontario Inc. | 20 Furniture22 Ropes24 Textiles+3 | Registered | 2004 |
| WxTech 1142182 · TMA593966 | SI-Products, LLC | 1 Chemicals | Registered | 2003 |
| WESTCO 1095906 · TMA575452 | Nutrien Ag Solutions (Canada) Inc. | 1 Chemicals35 Advertising42 Science | Registered | 2003 |
| WASHTEC 1056508 · TMA564045 · design | WashTec Holding GmbH | 7 Machines12 Vehicles | Registered | 2002 |
| WashTec 1056507 · TMA564033 | WashTec Holding GmbH | 7 Machines12 Vehicles | Registered | 2002 |
| WESTEX 0869572 · TMA549679 | 1754523 Ontario Inc. | 20 Furniture22 Ropes24 Textiles+3 | Registered | 2001 |
| WESTCO 0549407 · TMA321554 · design | Nutrien Ag Solutions (Canada) Inc. | 1 Chemicals | Registered | 1986 |
| WESTEX 0274876 · TMA136113 | Convoy Supply Ltd. Distribution Convoy Ltée. | 17 Rubber19 Building | Registered | 1964 |
| WESTDECK 2117358 | WESTDECK LTD. | 37 Construction | Pending | 2021 |
| WAGTASTIC 2249442 · TMA1263326 | Owner not listed | 31 Fresh | Registered | 2024 |
| WHYKJTEK 2246556 · TMA1265797 | Owner not listed | 9 Electronics | Registered | 2024 |