| mCOVFLU 2311269 | ModernaTX, Inc. | 5 Pharmaceuticals | Pending | 2024 |
| MCFLY 1216835 · TMA693666 | RASHMAN CORPORATION | 41 Education | Registered | 2007 |
| MYCOFLEX 1300658 · TMA726803 | Boehringer Ingelheim Vetmedica GmbH | 5 Pharmaceuticals | Registered | 2008 |
| MCVALUE 1039699 · TMA550432 | MCDONALD'S CORPORATION | 29 Meat30 Coffee32 Beer+1 | Registered | 2001 |
| MICOFLAME 1681795 · TMA926038 | Camus Hydronics Limited | 11 Lighting | Registered | 2016 |
| MSBLUE 2260739 · TMA1279513 | ZHO INC | 14 Jewellery18 Leather | Registered | 2024 |
| MAXBLENDS 2257753 · TMA1267508 | PetSmart Home Office LLC | 31 Fresh | Registered | 2024 |
| MJOYFUL 2253884 · TMA1284670 · design | Shenzhen MJoyful Electronics Limited | 26 Sewing | Registered | 2025 |
| MasiBloom 2241804 · TMA1265567 | Shenzhen Huafengsheng Electronic Technology Co. Ltd | 9 Electronics | Registered | 2024 |
| Mochiville 2202028 · TMA1238782 | an individual | 14 Jewellery16 Paper | Registered | 2024 |
| Makeblock 2189564 · TMA1170436 | MAKEBLOCK CO. LTD. | 7 Machines28 Toys | Registered | 2023 |
| Maxfill 2160161 · TMA1194910 | Shenzhen Obuy Technology Co. Ltd | 21 Housewares | Registered | 2023 |
| MAGPUL 2149434 · TMA1192919 | Magpul Industries Corp. | 18 Leather20 Furniture21 Housewares | Registered | 2023 |
| MAGOVOLT 2133820 · TMA1216231 | an individual | 5 Pharmaceuticals | Registered | 2023 |
| MEGABOLT 2123911 · TMA1269658 · design | MGI TECH CO. LTD. | 9 Electronics42 Science | Registered | 2024 |
| MAXIFLOW 2098036 · TMA1153237 | ILLINOIS TOOL WORKS INC. | 20 Furniture | Registered | 2022 |
| MSBELLE 2089575 · TMA1186072 | Owner not shown | 26 Sewing | Registered | 2023 |
| MASHBILL 2069996 · TMA1163461 | Small Batch Caps LLC | 21 Housewares25 Clothing | Registered | 2023 |
| McPLANT 2062572 · TMA1278439 | MCDONALD'S CORPORATION | 29 Meat | Registered | 2024 |
| MEECABLE 2044193 · TMA1123227 | an individual | 9 Electronics | Registered | 2022 |
| MESOBLAST 2034981 · TMA1226680 · design | MESOBLAST LIMITED | 5 Pharmaceuticals42 Science | Registered | 2024 |
| MAXFLOW 2011186 · TMA1202353 | an individual | 10 Medical | Registered | 2023 |
| MESOPEEL 2002372 · TMA1111983 | Owner not shown | 3 Cosmetics5 Pharmaceuticals | Registered | 2021 |
| MAXXFILL 1945817 · TMA1144144 | LVD Acquisition, LLC | 11 Lighting | Registered | 2022 |
| MIXPEEL 1931795 · TMA1123360 | Owner not shown | 7 Machines8 Hand | Registered | 2022 |