| WTECH 1619860 · TMA930993 · design | Conair LLC | 8 Hand21 Housewares | Registered | 2016 |
| WTECH 2365430 · design | Owner not listed | 9 Electronics37 Construction42 Science | Pending | 2024 |
| WTECH 2365429 | Owner not listed | 9 Electronics37 Construction42 Science | Pending | 2024 |
| WITECH 1384264 · TMA744532 | FCA US LLC | 9 Electronics | Registered | 2009 |
| WATECH 2340371 · design | Suzhou Watech Electronics Co. Ltd. | 9 Electronics35 Advertising | Pending | 2024 |
| WTC 1734207 · TMA1005806 | WORLD TRADE CENTERS ASSOCIATION, INC. | 35 Advertising36 Finance38 Telecommunications+3 | Registered | 2018 |
| WTC 1555926 · TMA857550 | KGIC Inc. | 41 Education | Registered | 2013 |
| WTC 1457969 · TMA797144 · design | Western Tube & Conduit Corporation | 6 Metal9 Electronics | Registered | 2011 |
| WTC 0833560 · TMA484249 · design | Atlas Tube (Chicago), LLC | 6 Metal | Registered | 1997 |
| WTC 0598392 · TMA360884 · design | WILSON TRAILER COMPANY | 12 Vehicles | Registered | 1989 |
| WTC 0358677 · TMA211309 | WORLD TRADE CENTERS ASSOCIATION, INC. | 35 Advertising41 Education42 Science | Registered | 1976 |
| WTC 0340572 · TMA187322 | WORLD TRADE CENTERS ASSOCIATION, INC. | 38 Telecommunications42 Science | Registered | 1972 |
| Watch 2298448 | Systèmes de contrôle actif Soft dB inc. | 9 Electronics | Pending | 2023 |
| WTIS 0924140 | an individual | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2016 |
| WATACHE 2249706 · TMA1268740 | Owner not listed | 9 Electronics | Registered | 2024 |
| WITOUCH 1615639 · TMA874886 | Hollywog, LLC | 10 Medical | Registered | 2014 |
| WETTECH 2069213 | WestRock Shared Services, LLC, a legal entity | 16 Paper | Pending | 2020 |
| WEEDSKI 2233397 · TMA1255262 | FLAMINGO VAPE SHOP LTD. | 31 Fresh34 Tobacco | Registered | 2024 |
| WEDSSKY 2233370 · TMA1254127 | Shenzhen Yu Laishun Technology Co. LTD | 28 Toys | Registered | 2024 |
| WATOSA 2182049 · TMA1264032 | WATOSA GLOBAL CO., LTD. | 3 Cosmetics21 Housewares35 Advertising | Registered | 2024 |
| Wowteck 2168864 · TMA1216389 | LIRU TECHNOLOGY CO. LIMITED | 9 Electronics | Registered | 2023 |
| Wwtoukui 2157777 · TMA1218362 | Ruian Junwanglai Trading Company | 9 Electronics | Registered | 2024 |
| WHITEHOUSE 2125085 · TMA1170309 | White House Network LLC | 41 Education | Registered | 2023 |
| Wowteez 2100858 · TMA1173859 | DONGGUAN KEGUANGYANG TRADING CO. LTD. | 8 Hand9 Electronics11 Lighting | Registered | 2023 |
| WEDGE 2098734 · TMA1183924 | an individual | 9 Electronics16 Paper35 Advertising+1 | Registered | 2023 |