| MEXTROL 0786623 · TMA557977 | Nufarm Agriculture Inc. | 5 Pharmaceuticals | Registered | 2002 |
| MEGATROL 1766055 · TMA1039758 | an individual | 7 Machines9 Electronics11 Lighting | Registered | 2019 |
| MECHTRON 2345921 · design | Owner not listed | 7 Machines | Pending | 2024 |
| MYCOTROL 2056899 | an individual | 1 Chemicals5 Pharmaceuticals | Pending | 2020 |
| MEGATRON 2079861 · TMA1284103 | Votatec Group Corp. | 11 Lighting | Registered | 2025 |
| MICTORYL 1748124 · TMA970243 | Apogepha Arzneimittel GmbH | 5 Pharmaceuticals | Registered | 2017 |
| MAZATROL 0644883 · TMA380897 | an individual | 7 Machines9 Electronics | Registered | 1991 |
| MAXITROL 0366173 · TMA198284 | an individual | 5 Pharmaceuticals | Registered | 1974 |
| MAXITROL 0211289 · UCA39712 | MAXITROL COMPANY | 11 Lighting | Registered | 1951 |
| MECHTRONIX 1400858 · TMA766002 · design | MECHTRONIX INC. | 9 Electronics41 Education42 Science | Registered | 2010 |
| MECHATROLINK 0851053 · TMA529051 | an individual | 7 Machines8 Hand9 Electronics+2 | Registered | 2000 |
| MISTRAL 2242290 · TMA1261709 | Mistral, LLC | 3 Cosmetics4 Oils5 Pharmaceuticals+1 | Registered | 2024 |
| MYSTRO 2224727 · TMA1252544 | L'OREAL | 3 Cosmetics | Registered | 2024 |
| MAESTRO 2223852 · TMA1264123 | Master Meter, Inc. | 9 Electronics42 Science | Registered | 2024 |
| MAESTRO 2171071 · TMA1223773 | an individual | 11 Lighting | Registered | 2024 |
| MAESTRO 2167262 · TMA1274069 · design | an individual | 9 Electronics | Registered | 2024 |
| MICDROP 2017207 · TMA1142630 | Freedman Electronics Pty Limited | 9 Electronics | Registered | 2022 |
| MISTRAL 1983873 · TMA1227605 | Somavrac (C.C.) Inc. | 1 Chemicals | Registered | 2024 |
| MAESTRO 1976823 · TMA1117433 | an individual | 29 Meat30 Coffee32 Beer | Registered | 2022 |
| MAESTRO 1962277 · TMA1126049 | LUTRON ELECTRONICS CO., INC. | 9 Electronics | Registered | 2022 |
| MAESTRO 1953743 · TMA1200702 | MP ACQUISITION, LLC | 10 Medical | Registered | 2023 |
| MAESTRO 1940574 · TMA1123586 | Oldcastle Building Products Canada, Inc./Les Matériaux de Construction Oldcastle Canada, Inc. | 19 Building | Registered | 2022 |
| MAESTRO 1932906 · TMA1202116 | SANDVINE CORPORATION | 9 Electronics38 Telecommunications42 Science | Registered | 2023 |
| MIXTRON 1930955 · TMA1118200 · design | an individual | 7 Machines9 Electronics20 Furniture | Registered | 2022 |
| MISTRAL 1912030 · TMA1111756 | Owner not shown | 9 Electronics13 Firearms | Registered | 2021 |