| MASTERLISE 2199165 · TMA1222519 · design | Kabushiki Kaisha Bandai Spirits(Bandai Spirits Co. Ltd.) | 28 Toys | Registered | 2024 |
| MASTERLINE 1623336 · TMA890007 | ES OpCo USA LLC | 5 Pharmaceuticals7 Machines8 Hand+3 | Registered | 2014 |
| MASTERLIFT 1345681 · TMA793832 · design | MASTERLIFT INC. | 7 Machines8 Hand12 Vehicles+3 | Registered | 2011 |
| MASTERLIFT 1345680 · TMA793833 | MASTERLIFT INC. | 7 Machines8 Hand12 Vehicles+3 | Registered | 2011 |
| MASTERLINE 1300008 · TMA753125 | BEAULIEU GROUP, LLC | 27 Carpets | Registered | 2009 |
| MASTERLINER 1771062 · TMA1030517 | GPCP IP Holdings LLC | 16 Paper | Registered | 2019 |
| MASTERELITE 1593891 · TMA939389 | BMIC LLC | 37 Construction | Registered | 2016 |
| MASTERLINK 1444698 · TMA772786 | Longyear TM, Inc. | 7 Machines | Registered | 2010 |
| MASTERFILE 1299558 · TMA815130 · design | an individual | 9 Electronics39 Transport40 Treatment+1 | Registered | 2012 |
| MASTERLIGN 0870610 · TMA519509 | an individual | 7 Machines9 Electronics | Registered | 1999 |
| MASTERFILE 0470348 · TMA268851 | MASTERFILE CORPORATION | 9 Electronics16 Paper19 Building+6 | Registered | 1982 |
| MASTERFILE 0909319 | THE CANADIAN MEDICAL ASSOCIATION/ASSOCIATION MÉDICAL CANADIENNE ("CMA") | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1997 |
| MASTERSHIFT 2197164 · TMA1237352 · design | Mastershift Inc. | 42 Science | Registered | 2024 |
| MASTERPIECE 1920831 · TMA1107778 | Chubb INA Holdings LLC | 35 Advertising36 Finance | Registered | 2021 |
| MASTERPIECE 1841729 · TMA1010278 | CHARM JEWELRY LIMITED | 14 Jewellery35 Advertising36 Finance+2 | Registered | 2018 |
| MASTERPIECE 1794074 · TMA985017 | Waddington North America, Inc. | 21 Housewares | Registered | 2017 |
| MASTERPIECE 1794073 · TMA987745 · design | Waddington North America, Inc. | 21 Housewares | Registered | 2018 |
| MASTERPIECE 1760623 · TMA955887 | Chubb INA Holdings LLC | 36 Finance | Registered | 2016 |
| MASTERPIECE 1673631 · TMA967666 | The Procter & Gamble Company | 3 Cosmetics | Registered | 2017 |
| MASTERCLAVE 1649799 · TMA915015 | Owner not shown | 9 Electronics | Registered | 2015 |
| MASTERFLAME 1640836 · TMA888557 · design | Homestar Corporation | 4 Oils6 Metal11 Lighting+2 | Registered | 2014 |
| MASTERFLAME 1464906 · TMA846322 · design | Homestar Corporation | 9 Electronics11 Lighting | Registered | 2013 |
| Masterpiece 1437113 · TMA813517 | LG ELECTRONICS INC. | 9 Electronics | Registered | 2011 |
| MASTERFIBER 1400704 · TMA770632 | Construction Research & Technology GmbH | 6 Metal17 Rubber | Registered | 2010 |
| MASTERPIECE 1377304 · TMA826823 · design | Masterpiece Care Corporation | 36 Finance37 Construction43 Restaurants | Registered | 2012 |