| MetricsCare 1766525 · TMA960635 | Motion Metrics International Corp. | 37 Construction | Registered | 2017 |
| METROSPEC 1821887 · TMA999617 | NEESH EYEWEAR INC | 3 Cosmetics9 Electronics21 Housewares | Registered | 2018 |
| METROSEAL 0548729 · TMA326517 | Mueller International, LLC | 6 Metal | Registered | 1987 |
| METROSPHERE 1966202 · TMA1247400 | Metrosphere Light Corp., a legal entity | 9 Electronics37 Construction42 Science | Registered | 2024 |
| METROSPHERE 1565515 · TMA850034 | METROSPHERE CORP. | 9 Electronics11 Lighting37 Construction+1 | Registered | 2013 |
| METRICA 2185250 · TMA1254923 | Vividata | 16 Paper35 Advertising38 Telecommunications+1 | Registered | 2024 |
| Motroce 2146009 · TMA1201788 | Wuhan Zhichanghang Electronic Commerce Co. Ltd. | 20 Furniture | Registered | 2023 |
| METRISTORE 1931198 · TMA1124795 | Oxford Nanopore Technologies Limited | 35 Advertising42 Science44 Medical | Registered | 2022 |
| metrica 1602043 · TMA877645 | an individual | 41 Education42 Science | Registered | 2014 |
| METRECAL 1362637 · TMA794556 · design | Metrecal Holdings LLC | 5 Pharmaceuticals | Registered | 2011 |
| METROSONIX 0876635 · TMA536295 | SOUND CITY ELECTRONICS CORP. | 9 Electronics | Registered | 2000 |
| METRICURE 0876455 · TMA557143 | an individual | 5 Pharmaceuticals | Registered | 2002 |
| METROCRÈME 0817519 · TMA505708 | Galderma Holding SA | 5 Pharmaceuticals | Registered | 1998 |
| METRIXWARE 0798716 · TMA491110 | WORLDPAC, INC. | 9 Electronics | Registered | 1998 |
| METRICAN 0698060 · TMA419509 | LES ATTACHES METRICAN LTEE/METRICAN FASTENERS LTD. | 6 Metal35 Advertising37 Construction | Registered | 1993 |
| METROCOAT 2235699 | an individual | 5 Pharmaceuticals35 Advertising | Pending | 2022 |
| METRICSQUARE 2371577 | Dongguan Jinyue Department Store Co. Ltd. | 9 Electronics | Pending | 2024 |
| Matrescence 2036889 · TMA1282008 | Matrescence Inc. | 3 Cosmetics | Registered | 2025 |
| METROACTION 1219865 · TMA700531 | Galderma Holding SA | 41 Education | Registered | 2007 |
| MATRIXSPACE 2326034 | MatrixSpace, Inc. | 9 Electronics42 Science | Pending | 2024 |
| 245 MOTORSPORT 2260522 · TMA1281118 | 9460-5607 QUÉBEC INC. | 11 Lighting12 Vehicles16 Paper+4 | Registered | 2025 |
| MATRIX 2259698 · TMA1277934 | 15450772 Canada Inc. | 8 Hand | Registered | 2024 |
| MADTRACE 2216888 · TMA1248306 · design | an individual | 12 Vehicles | Registered | 2024 |
| MODRSA 2206899 · TMA1241473 | an individual | 14 Jewellery | Registered | 2024 |
| MATHRIX 2190913 · TMA1282729 | Mathrix Holding GmbH | 36 Finance | Registered | 2025 |