| WORKNC 0706725 · TMA419261 | Hexagon Manufacturing Intelligence, Inc. | 9 Electronics | Registered | 1993 |
| WORKSENSE 1630679 · TMA891461 | Owner not shown | 35 Advertising | Registered | 2014 |
| WORKZONE 1900370 · TMA1084869 | Cheng Shin Rubber Ind. Co. Ltd. | 12 Vehicles | Registered | 2020 |
| WARKWYN 1756195 · TMA968019 | MISCO/MINNEAPOLIS SPEAKER COMPANY, INC. | 40 Treatment42 Science | Registered | 2017 |
| WORKING 1427244 · TMA764420 | Postmedia Network Inc. | 35 Advertising38 Telecommunications39 Transport | Registered | 2010 |
| WORESANA 1394859 · TMA755648 | woresan GmbH | 3 Cosmetics | Registered | 2009 |
| WORKING 1285187 · TMA748293 | Postmedia Network Inc. | 9 Electronics16 Paper25 Clothing | Registered | 2009 |
| WORKMAN 1186411 · TMA629940 | THE TORO COMPANY, a legal entity | 12 Vehicles | Registered | 2005 |
| WORKSOME 2149338 | Worksome USA, Inc. | 42 Science | Pending | 2021 |
| WORKIND 1969801 · design | Kind innovations Inc. | 9 Electronics35 Advertising36 Finance+4 | Pending | 2019 |
| WORKIND 1969800 | Kind innovations Inc. | 9 Electronics35 Advertising41 Education+2 | Pending | 2019 |
| WORKINK 0913930 · design | The Canadian Council on Rehabilitation and Work | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2002 |
| WORKSMART 1585136 · TMA893967 | Vertafore, Inc. | 36 Finance42 Science | Registered | 2015 |
| WORKSMART 1482324 · TMA858831 | Vertafore, Inc. | 9 Electronics | Registered | 2013 |
| WORKSMART 1380339 · TMA753599 | an individual | 41 Education44 Medical | Registered | 2009 |
| WORKSMITH 1213540 · TMA651608 | Alltrade Tools LLC | 7 Machines | Registered | 2005 |
| WORKSMART 1184418 · TMA632878 | Worksmart Ergonomics Ltd. | 16 Paper35 Advertising41 Education+2 | Registered | 2005 |
| WORKSMART 1184417 · TMA632994 · design | Worksmart Ergonomics Ltd. | 16 Paper35 Advertising41 Education+2 | Registered | 2005 |
| WORKNSTAY 2063614 | Les Services Intermédiaires d'Hébergement Worknstay Inc. | 35 Advertising36 Finance38 Telecommunications+1 | Pending | 2020 |
| WorkGenie 1992959 | Automation Genie Inc. | 42 Science | Pending | 2019 |
| WorkingNB 0926562 | Her Majesty The Queen in Right of the Province of New Brunswick as represented by the Minister of Post-Secondary Education Training and Labour | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2021 |
| WORKJAM 2188054 · TMA1232663 | WorkJam Inc. | 41 Education | Registered | 2024 |
| WORKJAM 2124993 · TMA1232113 | WorkJam Inc. | 42 Science | Registered | 2024 |
| WORKMATE 2093296 · TMA1185043 | IGLOO PRODUCTS CORP. | 21 Housewares | Registered | 2023 |
| WORKINSIGHT 2041877 · TMA1166540 | Chubb INA Holdings LLC | 36 Finance | Registered | 2023 |