| WorksBase 1740099 · TMA949154 | an individual | 42 Science | Registered | 2016 |
| WORKWAVE 1733727 · TMA999382 | WorkWave LLC | 9 Electronics35 Advertising42 Science | Registered | 2018 |
| WORKPASS 1616245 · TMA921357 | Workpass Limited | 9 Electronics35 Advertising36 Finance+5 | Registered | 2015 |
| WORKFACE 1560644 · TMA841243 | Industrial Audit Corporation | 9 Electronics35 Advertising42 Science | Registered | 2013 |
| WORKBOSS 1069858 · TMA587395 | AIRBOSS OF AMERICA CORP. | 12 Vehicles | Registered | 2003 |
| WORKSAFE 0684858 · TMA401752 | Wearwell, LLC | 27 Carpets | Registered | 1992 |
| WORKSAFE 0923189 · design | Electrical Safety Authority | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2015 |
| WORKSAFE 0909321 · design | WORKER'S COMPENSATION BOARD OF BRITISH COLUMBIA | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1997 |
| WORKPULSE 1777615 · TMA1067412 | When I Work, Inc. | 42 Science | Registered | 2019 |
| WORKPLACE 1164285 · TMA621983 | Workplace Modular Systems, LLC | 20 Furniture42 Science | Registered | 2004 |
| Workbrain 1038871 · TMA559096 | Infor IP Holdings, LLC | 9 Electronics30 Coffee35 Advertising+3 | Registered | 2002 |
| WORKPLACE 0879377 · TMA565288 | Workplace Modular Systems, LLC | 20 Furniture | Registered | 2002 |
| WORKSCAPE 0919585 | CANADIAN CENTRE FOR OCCUPATIONAL HEALTH AND SAFETY | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2010 |
| WORKBOT 2083873 · TMA1259211 | WORKATO, Inc. | 9 Electronics42 Science | Registered | 2024 |
| Workpath 1999439 · TMA1120292 | Workpath GmbH | 9 Electronics16 Paper35 Advertising+2 | Registered | 2022 |
| WORKBOOK 1977668 · TMA1171841 | DELTEK, INC. | 9 Electronics35 Advertising42 Science | Registered | 2023 |
| WORKABLE 1948666 · TMA1230881 | Workable Technology Limited | 9 Electronics35 Advertising38 Telecommunications+1 | Registered | 2024 |
| WORKPAC 1277784 · TMA681323 | CASCADES HOLDING US INC. | 21 Housewares | Registered | 2007 |
| WORKBOAT 2210568 | an individual | 35 Advertising41 Education | Pending | 2022 |
| WORXSAFE 2204526 · design | an individual | 6 Metal | Pending | 2022 |
| WORXSAFE 2159740 | an individual | 6 Metal | Pending | 2021 |
| WORKBRUTES 1774114 · TMA989068 | Bunzl IP Holdings, LLC | 9 Electronics25 Clothing | Registered | 2018 |
| WORKBRIDGE 1654816 · TMA956884 | Motion Recruitment Partners LLC | 35 Advertising | Registered | 2016 |
| WorkSafeNB 0919538 | Workplace Health, Safety and Compensation Commission / Commission de la santé, de la sécurité et de l'indemnisation des accidents au travail | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2009 |
| WORKSAFEBC 0916984 · design | The WORKERS' COMPENSATION BOARD OF BRITISH COLUMBIA | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2006 |