| WEATHERMASTER 1925360 · TMA1116036 | Sunspace Modular Enclosures Inc. | 6 Metal37 Construction | Registered | 2021 |
| WEATHERMASTER 1658231 · TMA917765 | Franklin International, Inc. | 17 Rubber | Registered | 2015 |
| WEATHERMASTER 0292083 · TMA145480 | CHICAGO BRIDGE & IRON COMPANY | 6 Metal | Registered | 1966 |
| WEATHERMASTER 0160086 · TMDA56876 | CARRIER CORPORATION, (A DELAWARE CORPORATION) | 1 Chemicals6 Metal7 Machines+2 | Registered | 1933 |
| WEATHERMAKER 0146707 · TMDA47128 | CARRIER CORPORATION, (A DELAWARE CORPORATION) | 11 Lighting | Registered | 1929 |
| WEATHERMATE 1550452 · TMA902184 | Walmart Apollo, LLC | 12 Vehicles | Registered | 2015 |
| WEATHERMATE 1493989 · TMA809511 | COMMONWEALTH HOME FASHIONS INC./ DÉCORS DE MAISON COMMONWEALTH INC. | 24 Textiles | Registered | 2011 |
| WEATHERMATE 1088175 · TMA601673 | DDP Specialty Electronic Materials US, LLC | 16 Paper19 Building | Registered | 2004 |
| WEATHERMAN 0871933 · TMA516915 | Jaymat Design Worx Inc. | 25 Clothing | Registered | 1999 |
| WEATHERONE 0831081 · TMA491284 | CLOVERDALE PAINT INC. | 2 Paints6 Metal12 Vehicles+3 | Registered | 1998 |
| WEATHERMAXX 1626181 · TMA884909 | Nexen Tire Corporation | 12 Vehicles | Registered | 2014 |
| WATERMINER 1608156 · TMA925480 | Boydel Investments Group Inc. | 11 Lighting | Registered | 2016 |
| WATERMASTER 1456749 · TMA794287 | an individual | 7 Machines37 Construction42 Science | Registered | 2011 |
| WEATHERNOW 0609564 · TMA353909 | Pelmorex Weather Networks (Television) Inc. | 35 Advertising | Registered | 1989 |
| WATERMASTER 0360637 · TMA209636 · design | G & S SALES LTD. | 7 Machines37 Construction | Registered | 1975 |
| WATERMÜLLER 2333678 · design | Beasun Electronic Co. Ltd | 11 Lighting | Pending | 2024 |
| WETRANSFER 2138685 | an individual | 35 Advertising37 Construction38 Telecommunications+3 | Pending | 2021 |
| WaterMake 2257518 · TMA1279234 | an individual | 28 Toys | Registered | 2024 |
| Woodronic 2221945 · TMA1249836 | an individual | 28 Toys34 Tobacco | Registered | 2024 |
| Waterman 2188565 · TMA1232722 | an individual | 25 Clothing28 Toys | Registered | 2024 |
| WATROMAT 2171865 · TMA1206608 · design | an individual | 11 Lighting | Registered | 2023 |
| WHITERHINO 2144591 · TMA1201694 · design | Shenzhen Heigeek Technology Co.Ltd | 21 Housewares | Registered | 2023 |
| WAITROOM 2094668 · TMA1189355 | WaitRoom Inc. | 9 Electronics38 Telecommunications42 Science | Registered | 2023 |
| WITRON 2026552 · TMA1181208 | Witron Logistik + Informatik GmbH | 7 Machines9 Electronics37 Construction+1 | Registered | 2023 |
| WEIDERINJELLY 2023192 · TMA1158827 · design | XIAMEN DONGWANSHENG TRADING CO. LTD. | 3 Cosmetics5 Pharmaceuticals35 Advertising | Registered | 2023 |