| MATRIXSPACE 2326034 | MatrixSpace, Inc. | 9 Electronics42 Science | Pending | 2024 |
| MATRISSE 1940012 · TMA1192293 | Prollenium Medical Technologies, Inc. | 3 Cosmetics5 Pharmaceuticals10 Medical | Registered | 2023 |
| MATRIXLINK 2220620 · design | Matrix Absence Management, Inc. | 42 Science | Pending | 2022 |
| Matrescence 2036889 · TMA1282008 | Matrescence Inc. | 3 Cosmetics | Registered | 2025 |
| MATRIXFIBER 1835560 · TMA1077318 | L International IP Holdings, LLC | 17 Rubber | Registered | 2020 |
| MetricsLink 1637358 · TMA888174 | Motion Metrics International Corp. | 9 Electronics35 Advertising37 Construction+1 | Registered | 2014 |
| Matrixify 2094816 · TMA1172521 | an individual | 9 Electronics42 Science | Registered | 2023 |
| Matrixvisa 1993292 · TMA1257162 | an individual | 45 Legal | Registered | 2024 |
| MATRIXPRO 1936112 · TMA1154508 | DePuy Synthes, Inc. | 10 Medical | Registered | 2022 |
| METRISTORE 1931198 · TMA1124795 | Oxford Nanopore Technologies Limited | 35 Advertising42 Science44 Medical | Registered | 2022 |
| MATRIXWAVE 1682614 · TMA988500 | DePuy Synthes, Inc. | 10 Medical | Registered | 2018 |
| MATRIXRIB 1635446 · TMA890779 | DePuy Synthes, Inc. | 10 Medical | Registered | 2014 |
| MATRISTEM 1496565 · TMA886302 | ACell, Inc. | 5 Pharmaceuticals10 Medical | Registered | 2014 |
| MATRIXCOTE 1404978 · TMA752224 | DENTSPLY SIRONA Inc. | 1 Chemicals | Registered | 2009 |
| MATRICIUM 1312303 · TMA706046 | Owner not shown | 3 Cosmetics5 Pharmaceuticals18 Leather+1 | Registered | 2008 |
| MATRIKON 1183335 · TMA619409 | Honeywell Limited | 9 Electronics42 Science | Registered | 2004 |
| MATRICAN 0425748 · TMA248266 | an individual | 16 Paper41 Education | Registered | 1980 |
| MATRIXOME 2209499 | MATRIXOME, Inc. | 1 Chemicals5 Pharmaceuticals | Pending | 2022 |
| METROSPHERE 1966202 · TMA1247400 | Metrosphere Light Corp., a legal entity | 9 Electronics37 Construction42 Science | Registered | 2024 |
| MetricsCare 1766525 · TMA960635 | Motion Metrics International Corp. | 37 Construction | Registered | 2017 |
| METROSPHERE 1565515 · TMA850034 | METROSPHERE CORP. | 9 Electronics11 Lighting37 Construction+1 | Registered | 2013 |
| MATRIXBLEND 1404977 · TMA756401 | DENTSPLY SIRONA Inc. | 19 Building | Registered | 2010 |
| MATRIXMIDFACE 2279970 | Owner not listed | 10 Medical | Pending | 2023 |
| MATRIXSTERNUM 2257700 | Owner not listed | 10 Medical | Pending | 2023 |
| 245 MOTORSPORT 2260522 · TMA1281118 | 9460-5607 QUÉBEC INC. | 11 Lighting12 Vehicles16 Paper+4 | Registered | 2025 |