| WORKING 1427244 · TMA764420 | Postmedia Network Inc. | 35 Advertising38 Telecommunications39 Transport | Registered | 2010 |
| WORKING 1285187 · TMA748293 | Postmedia Network Inc. | 9 Electronics16 Paper25 Clothing | Registered | 2009 |
| Working NB 0926561 | 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 |
| WORKING.COM 1427245 · TMA764669 | Postmedia Network Inc. | 35 Advertising38 Telecommunications39 Transport | Registered | 2010 |
| WORKING.COM 1285192 · TMA751166 | Postmedia Network Inc. | 9 Electronics16 Paper25 Clothing | Registered | 2009 |
| WORKING AS 1 1924712 · TMA1158585 | JEFFKRO INC. | 9 Electronics42 Science | Registered | 2022 |
| WORKING COPY 1679357 · TMA946604 | an individual | 9 Electronics41 Education | Registered | 2016 |
| WORKING SM@RT 1378989 · TMA740671 | PRIORITY MANAGEMENT INTERNATIONAL INC. | 9 Electronics16 Paper41 Education | Registered | 2009 |
| WORKING ON IT 1875135 · design | Monday.com Ltd | 9 Electronics38 Telecommunications42 Science | Pending | 2017 |
| WORKING THEORY 1823641 · TMA1035151 | Snowdon Consulting Incorporated | 9 Electronics16 Paper35 Advertising+1 | Registered | 2019 |
| ALWAYS WORKING. 1621355 · TMA910338 | Paragon Technologies, Inc. | 37 Construction | Registered | 2015 |
| WORKING ROYALS 2374756 | Working Royals Worldwide Music Inc. | 9 Electronics16 Paper25 Clothing+1 | Pending | 2025 |
| WORKING CAPITAL 1910904 · TMA1114542 | Owner not shown | 35 Advertising36 Finance | Registered | 2021 |
| Feel It Working 1811049 · TMA1003646 | NEW ROOTS HERBAL INC. | 5 Pharmaceuticals16 Paper | Registered | 2018 |
| WORKING ON FIRE 1636132 · TMA898577 · design | Working on Fire International Holdings Ltd | 39 Transport45 Legal | Registered | 2015 |
| WORKING FOR YOU 1479736 · TMA790508 | Bell Media Inc. | 38 Telecommunications41 Education | Registered | 2011 |
| WORKING WONDERS 1408090 · TMA758231 | ADESA, Inc. a Delaware corporation | 35 Advertising | Registered | 2010 |
| WORKING WARRIORS 1904010 · TMA1082496 · design | Running Deer Resources Inc. | 42 Science | Registered | 2020 |
| THE WORKING MIND 1833008 · TMA1013256 | Mental Health Commission of Canada | 9 Electronics16 Paper35 Advertising+2 | Registered | 2019 |
| WORKING WITH YOU 1764604 · TMA1009475 | Owner not shown | 42 Science | Registered | 2018 |
| WALK OUT WORKING 1702451 · TMA933412 | BBY Solutions, Inc. | 37 Construction | Registered | 2016 |
| THE WORKING BANK 1432614 · TMA772728 | CANADIAN WESTERN BANK | 36 Finance | Registered | 2010 |
| WALK OUT WORKING 1419336 · TMA764589 | BBY Solutions, Inc. | 35 Advertising36 Finance37 Construction | Registered | 2010 |
| WORKING IN TRUST 1126761 · TMA612159 | VeriSign, Inc. (a Delaware corporation) | 36 Finance42 Science | Registered | 2004 |
| WORKING TOGETHER 0928460 | Owner not listed | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2024 |