| MCDONNELLS 1713248 · TMA980101 · design | an individual | 29 Meat30 Coffee | Registered | 2017 |
| MCDANTIM 1693323 · TMA939660 · design | McDantim, Inc. | 7 Machines9 Electronics | Registered | 2016 |
| MCDANTIM 1693322 · TMA939670 | McDantim, Inc. | 7 Machines9 Electronics | Registered | 2016 |
| MCDONALD 1046003 · TMA574346 · design | A. Y. McDonald Mfg. Co. (an Iowa corporation) | 7 Machines11 Lighting | Registered | 2003 |
| MCDONUTS 0429338 · TMA340281 | MCDONALD'S CORPORATION | 30 Coffee43 Restaurants | Registered | 1988 |
| MistMingle 2259280 · TMA1281085 | Crystal Castle Limited | 34 Tobacco | Registered | 2025 |
| Mustang 2237805 · TMA1199408 | FENDER MUSICAL INSTRUMENTS CORPORATION | 9 Electronics | Registered | 2023 |
| Magidome 2216451 · TMA1248296 | an individual | 6 Metal | Registered | 2024 |
| MOSTON 2181453 · TMA1232374 · design | an individual | 11 Lighting | Registered | 2024 |
| MOKDUN 2178384 · TMA1228199 | Shenzhen Honghuihang Technology Co. Ltd. | 9 Electronics | Registered | 2024 |
| MYKIDNEYPLAN 2161119 · TMA1197124 | BAXTER INTERNATIONAL INC. | 9 Electronics42 Science | Registered | 2023 |
| Masctiniy 2153184 · TMA1208653 | Owner not shown | 25 Clothing | Registered | 2023 |
| MAGTEIN 2116340 · TMA1207405 | Magceutics, Inc. | 1 Chemicals5 Pharmaceuticals | Registered | 2023 |
| MAGTEIN 2116339 · TMA1207404 · design | Magceutics, Inc. | 5 Pharmaceuticals | Registered | 2023 |
| Makedoing 2091394 · TMA1181605 | Shenzhen Tiandizhengyuan Technology Co. Ltd. | 21 Housewares | Registered | 2023 |
| MOSDIMMER 2071840 · TMA1161342 | Gray Instruments Inc | 9 Electronics | Registered | 2023 |
| MAXTHANE 2067847 · TMA1199914 | Watson-Marlow Limited | 7 Machines17 Rubber | Registered | 2023 |
| mStand 2067152 · TMA1134212 | Rain Design, Inc. | 9 Electronics | Registered | 2022 |
| MAXTON 2057073 · TMA1224194 | KOHLER CO. | 11 Lighting | Registered | 2024 |
| MachTeams 2045338 · TMA1116402 | an individual | 9 Electronics38 Telecommunications42 Science | Registered | 2021 |
| MEGATON 2004608 · TMA1128389 | NATURAL FERVOR INC. | 5 Pharmaceuticals | Registered | 2022 |
| MOSQUITOMAN 1979010 · TMA1166332 | Mosquitoman Inc. | 37 Construction | Registered | 2023 |
| MISTINE 1950590 · TMA1160706 · design | BETTER WAY (THAILAND) COMPANY LIMITED | 3 Cosmetics | Registered | 2023 |
| MISTANA 1935721 · TMA1155765 | Wayfair LLC | 6 Metal8 Hand11 Lighting+7 | Registered | 2022 |
| MICTUNING 1924546 · TMA1110253 | MICO INDUSTRIAL LIMITED | 11 Lighting | Registered | 2021 |