| MECHOSYSTEMS 1534251 · TMA830149 | Mechoshade Systems, LLC | 9 Electronics | Registered | 2012 |
| MAGICOS 2239876 · TMA1277562 · design | Honor Device Co., Ltd. | 9 Electronics | Registered | 2024 |
| MASAHISASAKU 2209918 · TMA1282864 · design | MAC Corporation | 8 Hand | Registered | 2025 |
| Magiacous 2187534 · TMA1231668 | Shenzhen Guiyang Network Technology Co. Ltd. | 11 Lighting | Registered | 2024 |
| MYKISSEX 2166174 · TMA1232324 | an individual | 10 Medical | Registered | 2024 |
| Magiques 2151416 · TMA1209779 | an individual | 9 Electronics | Registered | 2023 |
| MIXASSIST 2148416 · TMA1204155 | McKesson Canada Corporation | 9 Electronics | Registered | 2023 |
| MEZIXUS 2145646 · TMA1218214 | Celgene Corporation | 5 Pharmaceuticals | Registered | 2024 |
| MEZKIXUS 2145645 · TMA1221337 | Celgene Corporation | 5 Pharmaceuticals | Registered | 2024 |
| magAssist 2123766 · TMA1227860 | magAssist Co. Ltd. | 10 Medical | Registered | 2024 |
| MUSICOZY 2119554 · TMA1156587 · design | SHENZHEN HEYE FIBER NETWORK CO. LTD. | 9 Electronics | Registered | 2022 |
| MYCOCYCLE 2074397 · TMA1138820 | MYCOCYCLE, INC. | 40 Treatment | Registered | 2022 |
| mkicesky 2066093 · TMA1156450 | SHENZHEN QISHENGXIENENG ELECTRONIC CO. LTD | 20 Furniture | Registered | 2022 |
| MAGICHESTRA 1915684 · TMA1092729 | SAMSUNG ELECTRONICS CO. LTD. | 9 Electronics42 Science | Registered | 2021 |
| Macochico 1905981 · TMA1104051 | Hangzhou Lanbowan Home Fashion Co. Ltd. | 24 Textiles | Registered | 2021 |
| MAXIGESIC 1758170 · TMA974551 | AFT Pharmaceuticals Ltd. | 5 Pharmaceuticals | Registered | 2017 |
| MAGIKIST 1756409 · TMA958007 | MAGIKIST LTD. | 7 Machines | Registered | 2016 |
| MESSAGESERV 1749850 · TMA1006279 | FUNDSERV INC. | 38 Telecommunications42 Science | Registered | 2018 |
| MAGICJACKEXPRESS 1732289 · TMA963001 · design | magicJack LP | 9 Electronics38 Telecommunications | Registered | 2017 |
| MEGASYS 1714147 · TMA966726 · design | MEGASYS ENTERPRISES LTD. | 9 Electronics35 Advertising41 Education+2 | Registered | 2017 |
| MEGASYS 1714146 · TMA966729 · design | MEGASYS ENTERPRISES LTD. | 9 Electronics35 Advertising41 Education+2 | Registered | 2017 |
| MICOKAST 1709593 · TMA986605 | Fosbel Inc | 17 Rubber19 Building37 Construction+2 | Registered | 2017 |
| MISSISSAUGA 1702546 · TMA980522 · design | 2325224 Ontario Inc. | 6 Metal11 Lighting14 Jewellery+8 | Registered | 2017 |
| MUSICAST 1635155 · TMA977128 | Personet Solutions and Technologies Inc. | 38 Telecommunications | Registered | 2017 |
| MEGASYS 1569545 · TMA845950 | GATES CORPORATION (A DELAWARE CORPORATION) | 6 Metal17 Rubber | Registered | 2013 |