| MICROTOX 0732502 · TMA443272 | MW Monitoring IP Limited | 1 Chemicals5 Pharmaceuticals9 Electronics | Registered | 1995 |
| MICROBLOK 2048709 · TMA1273724 | Chroma Color Corporation | 5 Pharmaceuticals | Registered | 2024 |
| MICROFLEX 1865824 · TMA1050204 | Shure Incorporated | 9 Electronics | Registered | 2019 |
| MICROFLOW 1793791 · TMA1003710 | Cloud Software Group, Inc. | 42 Science | Registered | 2018 |
| MICROCLOR 1718502 · TMA950273 | Process Solutions, Inc. | 11 Lighting | Registered | 2016 |
| MICROPLEX 1321438 · TMA752717 | Luminex Corporation | 1 Chemicals5 Pharmaceuticals | Registered | 2009 |
| MICROFLEX 1236899 · TMA731404 | MARK'S WORK WEARHOUSE LTD. | 25 Clothing | Registered | 2008 |
| MICROFLEX 1163771 · TMA606988 | EPICOR INDUSTRIES, INC. (a Delaware corporation) | 6 Metal | Registered | 2004 |
| MICROFLEX 0881452 · TMA519233 | Spectrum Brands, Inc. | 8 Hand | Registered | 1999 |
| MICROFLOW 0864988 · TMA503671 | BAUSCH & LOMB INCORPORATED (A NEW YORK CORPORATION) | 10 Medical | Registered | 1998 |
| MICROFLEX 0783828 · TMA472514 | Live Nation Entertainment, Inc. a Delaware corporation | 9 Electronics39 Transport42 Science | Registered | 1997 |
| MICROFLEX 0720503 · TMA476351 | Ansell Healthcare Products LLC | 2 Paints9 Electronics10 Medical | Registered | 1997 |
| MICRO-LOK 0482988 · TMA336781 | JOHNS MANVILLE CANADA INC. | 17 Rubber | Registered | 1988 |
| MicroGlow 2372645 | an individual | 5 Pharmaceuticals | Pending | 2025 |
| MICROFLOW 2364278 | A. RICHARD TOOLS CO./OUTILS A. RICHARD CO. a Canadian Corporation | 16 Paper | Pending | 2024 |
| MicroBloc 2181869 | an individual | 36 Finance37 Construction42 Science | Pending | 2021 |
| MICROMAX 2190601 · TMA1233753 | DuPont Electronics, Inc. | 2 Paints | Registered | 2024 |
| MICROCNX 2057831 · TMA1145957 | COLDER PRODUCTS COMPANY | 17 Rubber | Registered | 2022 |
| MICROMIX 1943605 · TMA1239206 | an individual | 5 Pharmaceuticals | Registered | 2024 |
| MICROCON 1920613 · TMA1101845 · design | RGF Environmental Group, Inc. | 11 Lighting | Registered | 2021 |
| MICROBIX 1899233 · TMA1169381 | MICROBIX BIOSYSTEMS INC. | 1 Chemicals5 Pharmaceuticals9 Electronics+6 | Registered | 2023 |
| MICROMAX 1872001 · TMA1078988 | Regal Beloit America, Inc. | 7 Machines | Registered | 2020 |
| MICROSOL 1870072 · TMA1081290 | an individual | 35 Advertising40 Treatment41 Education+1 | Registered | 2020 |
| MicroDx 1819774 · TMA1056556 | 4D PHARMA PLC | 42 Science | Registered | 2019 |
| MicroRx 1819773 · TMA1056547 | 4D PHARMA PLC | 42 Science | Registered | 2019 |