| MICROZOOM 0838689 · TMA500440 | an individual | 9 Electronics10 Medical | Registered | 1998 |
| MICROSYN 1589393 · TMA899877 | Owner not shown | 1 Chemicals | Registered | 2015 |
| MICROCYN 1235324 · TMA743079 | Sonoma Pharmaceutical, Inc. | 5 Pharmaceuticals | Registered | 2009 |
| MICROZA 0684430 · TMA430572 | an individual | 7 Machines10 Medical11 Lighting | Registered | 1994 |
| MICROSYN 2073796 · design | an individual | 3 Cosmetics | Pending | 2020 |
| MICROCHEM 1660000 · TMA925392 | Ansell Microgard Limited | 9 Electronics | Registered | 2016 |
| MICROZONE 1520480 · TMA847937 | Span Tech LLC | 7 Machines | Registered | 2013 |
| MIGRASTEM 1464238 · TMA837275 | STEMTECH INTERNATIONAL, INC. | 5 Pharmaceuticals | Registered | 2012 |
| MICROSEMI 1342944 · TMA762469 | Microsemi Corporation | 9 Electronics | Registered | 2010 |
| MICROZONE 0831606 · TMA489098 | LOUIS GARNEAU SPORTS INC. | 9 Electronics12 Vehicles28 Toys | Registered | 1998 |
| MICRHOGAM 0370154 · TMA208845 · design | Kedrion Melville Inc. (a Delaware corporation) | 5 Pharmaceuticals | Registered | 1975 |
| MICROSYSTEM 0754283 · TMA496400 · design | COLTENE/WHALEDENT, INC. (A CORPORATION OF DELAWARE) | 5 Pharmaceuticals7 Machines10 Medical | Registered | 1998 |
| MXRSDF 2261811 · TMA1281298 | an individual | 14 Jewellery | Registered | 2025 |
| MASQUERS 2247402 · TMA1261924 · design | PHOENYX VENTURES LIMITED | 33 Wine | Registered | 2024 |
| MACROSOURCE 2244329 · TMA1250334 · design | MACROSOURCE, LLC | 1 Chemicals36 Finance | Registered | 2024 |
| MAKERZ 2243001 · TMA1260169 | NEWCORP INTERNATIONAL CO. | 20 Furniture | Registered | 2024 |
| MICROS 2237129 · TMA1254191 · design | Owner not listed | 9 Electronics | Registered | 2024 |
| MACROSOURCE 2232112 · TMA1250286 | MACROSOURCE, LLC | 1 Chemicals36 Finance | Registered | 2024 |
| MIKERQO 2226833 · TMA1218781 | GLAXO GROUP LIMITED | 5 Pharmaceuticals | Registered | 2024 |
| MEQIRKO 2225385 · TMA1265512 | GLAXO GROUP LIMITED | 5 Pharmaceuticals | Registered | 2024 |
| MAXIRICCO 2220190 · TMA1249792 · design | Max InterAmericas Inc | 30 Coffee | Registered | 2024 |
| MYKURS 2202600 · TMA1238865 | Jieyangshi Zhongkai Trading Co., Ltd. | 25 Clothing26 Sewing | Registered | 2024 |
| MYCOWORKS 2196147 · TMA1277475 | MycoWorks, Inc. | 1 Chemicals25 Clothing40 Treatment+1 | Registered | 2024 |
| meowcrystal 2190157 · TMA1233682 | Guangzhou Qidian Cross-border E-commerce Co. Ltd. | 14 Jewellery | Registered | 2024 |
| MNGARISTA 2190142 · TMA1232878 | an individual | 16 Paper | Registered | 2024 |