| Wexit 1992551 · TMA1124981 | an individual | 45 Legal | Registered | 2022 |
| WEST 1605719 · TMA918835 | DUPUIS LANGEN FINANCIAL MANAGEMENT (1985) LTD. | 36 Finance44 Medical45 Legal | Registered | 2015 |
| WEST 1399474 · TMA796768 · design | WEST PHARMACEUTICAL SERVICES, INC. | 6 Metal10 Medical17 Rubber+2 | Registered | 2011 |
| WCT 1365031 · TMA792251 | Worldwide Clinical Trials, Inc. | 35 Advertising39 Transport41 Education+1 | Registered | 2011 |
| WEST 1294464 · TMA700636 | Western Financial Group (Network) Inc. | 16 Paper25 Clothing | Registered | 2007 |
| WEST 0568327 · TMA394385 | REEMTSMA CIGARETTENFABRIKEN GMBH | 34 Tobacco | Registered | 1992 |
| WEST 0559443 · TMA335348 | TGA Industries Limited | 9 Electronics | Registered | 1987 |
| WWCT 2289728 | WORLD WIDE CANADIAN TOBACCO (WWCT) INC. | 34 Tobacco | Pending | 2023 |
| WESCOTT 1452403 · TMA830391 | KOHLER CO. a corporation organized and existing under the laws of the State of Wisconsin | 11 Lighting | Registered | 2012 |
| Wisewatt 2264556 · TMA1284867 | an individual | 9 Electronics | Registered | 2025 |
| WOSADO 2263675 · TMA1284772 · design | Shenzhen Qianhai Magwow Technology Co. Ltd. | 3 Cosmetics8 Hand21 Housewares | Registered | 2025 |
| Waxetty 2233719 · TMA1255288 | 14542355 Canada Inc. | 4 Oils | Registered | 2024 |
| WASOTO 2221929 · TMA1248667 | an individual | 11 Lighting | Registered | 2024 |
| WESTWAY 2216637 · TMA1245460 | Federated Co-operatives Limited | 35 Advertising37 Construction | Registered | 2024 |
| WOZYIHDD 2179745 · TMA1228363 | an individual | 21 Housewares | Registered | 2024 |
| Wieysdoo 2172611 · TMA1222395 | Shenzhenshi Puhua Yongcheng Technology Co. Ltd. | 25 Clothing | Registered | 2024 |
| WISEDAY 2161714 · TMA1226563 · design | Wiseday Financial Inc. | 36 Finance | Registered | 2024 |
| wakytu 2161494 · TMA1211189 | Caden (Shenzhen) Electronic Commerce Co.Ltd | 18 Leather | Registered | 2023 |
| Whywaste 2157168 · TMA1259366 | an individual | 9 Electronics42 Science | Registered | 2024 |
| WEICHIDA 2154796 · TMA1217419 | an individual | 11 Lighting | Registered | 2024 |
| WYOST 2144957 · TMA1185540 | an individual | 5 Pharmaceuticals | Registered | 2023 |
| Wizkit 2123042 · TMA1165010 | an individual | 10 Medical | Registered | 2023 |
| WWCDA 2109910 · TMA1157596 | Women's White Collar Defense Association | 35 Advertising41 Education | Registered | 2022 |
| WEEKYDO 2108294 · TMA1223627 | an individual | 42 Science | Registered | 2024 |
| WEKITY 2091509 · TMA1179065 | an individual | 21 Housewares | Registered | 2023 |