| MAXXTRACT 1771054 · TMA1048685 | Sterling Specialty Chemicals Holding UK Limited | 1 Chemicals42 Science | Registered | 2019 |
| MAXTRAC 1267445 · TMA672650 · design | Lincoln Global, Inc. | 7 Machines9 Electronics | Registered | 2006 |
| MAXTRAC 1267425 · TMA676731 | Lincoln Global, Inc. | 7 Machines9 Electronics | Registered | 2006 |
| MAXTRAK 2125419 · TMA1227867 | ROLL-N-LOCK Corporation | 12 Vehicles | Registered | 2024 |
| Macator 1994601 · TMA1102142 | Owner not shown | 9 Electronics | Registered | 2021 |
| MAGTRACE 1851450 · TMA1073240 | ENDOMAGNETICS LIMITED | 5 Pharmaceuticals10 Medical | Registered | 2020 |
| MAXTRON 1703891 · TMA922779 | CHS Inc. | 1 Chemicals4 Oils | Registered | 2015 |
| MAXTRA 1400744 · TMA745409 · design | JIANGMEN DACHANGJIANG GROUP CO., LTD. | 9 Electronics12 Vehicles28 Toys | Registered | 2009 |
| MAGTRACE 1263995 · TMA715792 | PRODUITS CHIMIQUES MAGNUS LTEE | 1 Chemicals | Registered | 2008 |
| MAXTRA 1241271 · TMA731174 | BRITA GmbH | 11 Lighting | Registered | 2008 |
| MAXTRAD 1113684 · TMA619890 | NatWest Group PLC. | 36 Finance | Registered | 2004 |
| MAXITRAT 1099696 · TMA582461 | LIDL STIFTUNG & CO. KG | 3 Cosmetics5 Pharmaceuticals | Registered | 2003 |
| MaxTrax 1091332 · TMA575270 | Canadian Pacific Railway Company | 35 Advertising39 Transport | Registered | 2003 |
| MAXTOR 0546091 · TMA319428 | Seagate Technology LLC | 9 Electronics | Registered | 1986 |
| MEGATRACTION 2037072 · TMA1249413 | 8082464 Canada Inc. | 7 Machines12 Vehicles35 Advertising+2 | Registered | 2024 |
| MASTERCOLOR 1553244 · TMA904237 | Construction Research & Technology GmbH | 1 Chemicals | Registered | 2015 |
| MASTERFLOOR 1207002 · TMA698008 | Kaindl Marken GmbH | 19 Building | Registered | 2007 |
| MASTERSTORE 0774156 · TMA468270 | LF, LLC | 35 Advertising | Registered | 1997 |
| MasterBlaster 2158726 · TMA1209932 | Forge Capital Ltd. | 28 Toys | Registered | 2023 |
| MASTERLY 2296275 · TMA1263377 · design | Owner not listed | 9 Electronics35 Advertising41 Education+3 | Registered | 2024 |
| MYSTERIA 2258106 · TMA1241970 | Owner not listed | 31 Fresh | Registered | 2024 |
| MYGDRV 2255182 · TMA1253183 | Grand Design RV, LLC | 9 Electronics42 Science | Registered | 2024 |
| MOISTUREGLOW 2254602 · TMA1264576 | LJULJA BEAUTY INC. | 3 Cosmetics | Registered | 2024 |
| MAESTRALE 2253287 · TMA1282991 · design | an individual | 35 Advertising | Registered | 2025 |
| MEXITERRANEAN 2247025 · TMA1267159 | Owner not listed | 29 Meat | Registered | 2024 |