| WINTERPLEX 2119385 · TMA1203978 | TIB MOLBIOL Syntheselabor GmbH | 1 Chemicals5 Pharmaceuticals | Registered | 2023 |
| WINTERFLEX 1503664 · TMA809525 | Winter Equipment Company, Inc. | 7 Machines | Registered | 2011 |
| WINTERFLEX 0847186 · TMA529899 | WIIP, INC. | 9 Electronics | Registered | 2000 |
| WINTERLUDE 0909286 | Sa Majesté la Reine du Chef du Canada, représentée par la Ministre du Patrimoine canadien | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1997 |
| WANDERLUX 2335720 | berlana e-commerce enterprises inc. | 18 Leather24 Textiles | Pending | 2024 |
| WINTERLAND 2019830 · TMA1160972 | SLEEMAN BREWERIES LTD. | 32 Beer | Registered | 2023 |
| WINTERMUTE 1827869 · TMA1014864 | Hinterland Studio Inc. | 9 Electronics14 Jewellery16 Paper+9 | Registered | 2019 |
| WANDERLUXE 1783783 · TMA988187 | Air Canada Foundation | 36 Finance | Registered | 2018 |
| WINTERTRAX 1329696 · TMA775313 | Implus Footcare, LLC | 6 Metal25 Clothing | Registered | 2010 |
| WINTERLACE 2312536 | MK Labs, Inc. | 25 Clothing | Pending | 2024 |
| WINTERPRO 1815993 · TMA993533 · design | Shandong Jinyu Tire Co. Ltd. | 12 Vehicles | Registered | 2018 |
| WINTER 1748392 · TMA949422 | Bath & Body Works Brand Management, Inc. | 3 Cosmetics4 Oils | Registered | 2016 |
| WINTERFIT 1740606 · TMA951150 | Owner not shown | 24 Textiles | Registered | 2016 |
| WINTERFLO 1730712 · TMA978528 | MILLER MANUFACTURING COMPANY | 11 Lighting | Registered | 2017 |
| WINTER 1503662 · TMA809524 · design | Winter Equipment Company, Inc. | 7 Machines | Registered | 2011 |
| WINTER 1429145 · TMA765488 | Winter Equipment Company, Inc. | 7 Machines | Registered | 2010 |
| WINTER 1401578 · TMA879736 | CLEARWATER MARINE AQUARIUM, INC. | 16 Paper21 Housewares25 Clothing+3 | Registered | 2014 |
| WINTREX 1368261 · TMA724369 | HOUGHTON CHEMICAL CORPORATION | 1 Chemicals | Registered | 2008 |
| WINTERGAS 1053039 · TMA642500 | Suncor Energy Inc. | 4 Oils | Registered | 2005 |
| WINTERM 0818976 · TMA570641 | Dell Inc. | 9 Electronics | Registered | 2002 |
| WINTER 0489805 · TMA290237 | SAINT-GOBAIN Diamantwerkzeuge GmbH & Co. KG | 3 Cosmetics7 Machines30 Coffee | Registered | 1984 |
| WINTER 2364461 · design | Owner not listed | 25 Clothing | Pending | 2024 |
| WINTERGUARD 1346793 · TMA721529 | CertainTeed Corporation | 19 Building | Registered | 2008 |
| WINTERGUARD 2360947 | Tireco, Inc. | 12 Vehicles | Pending | 2024 |
| WINTERLICIOUS 0916133 | CITY OF TORONTO | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2004 |