| WATERGENIE 1260422 · TMA675726 | Owner not shown | 7 Machines11 Lighting | Registered | 2006 |
| WATERSCENE 1074009 · TMA566791 | Waterscene Designs Inc. | 1 Chemicals6 Metal11 Lighting+9 | Registered | 2002 |
| WATERSENTRY 0791583 · TMA463007 | ELKAY MANUFACTURING COMPANY, a Delaware corporation | 11 Lighting | Registered | 1996 |
| WATERSTAGE 2143181 · TMA1284308 | FUJITSU GENERAL LIMITED | 9 Electronics11 Lighting | Registered | 2025 |
| WATERSTAGE 2143180 · TMA1284307 · design | FUJITSU GENERAL LIMITED | 9 Electronics11 Lighting | Registered | 2025 |
| WATERGEN 2011599 · TMA1137363 | WATERGEN LTD. | 11 Lighting | Registered | 2022 |
| WATERSIDE 1824296 · TMA1024605 | an individual | 16 Paper44 Medical | Registered | 2019 |
| WATERSEER 1813835 · TMA996108 · design | Shanghai Trustech Technology Development Co. Ltd | 10 Medical11 Lighting21 Housewares | Registered | 2018 |
| WATERSYS 1611815 · TMA904039 | Procesco Inc. | 6 Metal7 Machines9 Electronics+3 | Registered | 2015 |
| WATERSTONE 1326414 · TMA754881 | Waterstone Partners Inc. | 35 Advertising36 Finance45 Legal | Registered | 2009 |
| WATERSTONE 1298183 · TMA682525 | VANITY FASHIONS LIMITED | 14 Jewellery | Registered | 2007 |
| WATERWISE 0923889 | GREATER VANCOUVER REGIONAL DISTRICT | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2016 |
| WATERSHEDGEO 1716167 · TMA990256 | Watershed Geosynthetics LLC, Limited Liability Company under the laws of the State of Georgia, U.S.A | 19 Building27 Carpets | Registered | 2018 |
| WATERSCAPES 1631091 · TMA886013 | Mattamy (Monarch) Limited | 36 Finance37 Construction | Registered | 2014 |
| WATERKEEPER 1500170 · TMA818579 | an individual | 9 Electronics14 Jewellery16 Paper+6 | Registered | 2012 |
| WATERKEEPER 1285237 · TMA688967 · design | an individual | 35 Advertising41 Education42 Science | Registered | 2007 |
| WATERESTORE 2284845 | Owner not listed | 1 Chemicals11 Lighting25 Clothing+3 | Pending | 2023 |
| WATERSTONES 2183486 | Waterstones Booksellers Limited | 9 Electronics16 Paper18 Leather+4 | Pending | 2021 |
| WATERSPIDER 2022637 | Professional Water Products, Inc. | 7 Machines | Pending | 2020 |
| WATERSHIP 2113604 · TMA1181795 · design | an individual | 35 Advertising | Registered | 2023 |
| WATERSHED 2049345 · TMA1164546 | Watershed Technology, Inc. | 9 Electronics42 Science | Registered | 2023 |
| WATERKING 1850478 · TMA1013306 | BORDER CHEMICAL COMPANY LIMITED | 1 Chemicals | Registered | 2019 |
| WATERS 1846068 · TMA1095044 | Waters Technologies Corporation | 1 Chemicals9 Electronics35 Advertising+3 | Registered | 2021 |
| WATERSTEEL 1831454 · TMA1005095 | Entreprises Shippagan Ltée | 22 Ropes | Registered | 2018 |
| WATERSHED 1718301 · TMA1002824 · design | SanEcoTec Ltd. | 11 Lighting | Registered | 2018 |