| MICROSURE 0840940 · TMA543356 | MICROBAN CANADA INC. | 5 Pharmaceuticals | Registered | 2001 |
| MICROSERVE 0606159 · TMA354998 | 341234 B.C. LTD. | 35 Advertising37 Construction | Registered | 1989 |
| MICROSERE 0306667 · TMA157861 | The International Group, Inc. (a Delaware corporation) | 3 Cosmetics4 Oils5 Pharmaceuticals | Registered | 1968 |
| MICROCURE 2316870 · design | Microcure(Suzhou) Medical Technology Co. Ltd. | 10 Medical | Pending | 2024 |
| MACROSOURCE 2244329 · TMA1250334 · design | MACROSOURCE, LLC | 1 Chemicals36 Finance | Registered | 2024 |
| MACROSOURCE 2232112 · TMA1250286 | MACROSOURCE, LLC | 1 Chemicals36 Finance | Registered | 2024 |
| MICROSCREEN 0787321 · TMA470960 | MICROGEN BIOPRODUCTS LIMITED | 1 Chemicals5 Pharmaceuticals | Registered | 1997 |
| MICROAGE 2132041 · TMA1195823 | FRONTIER TECHNOLOGY, LLC, LIMITED LIABILITY COMPANY ARIZONA | 37 Construction42 Science | Registered | 2023 |
| MICROSAFE 1995856 · TMA1102986 | DRUMMOND SCIENTIFIC COMPANY | 10 Medical | Registered | 2021 |
| MICROSOLVE 1774502 · TMA1055571 | an individual | 5 Pharmaceuticals | Registered | 2019 |
| MICROCORE 1655866 · TMA921511 | an individual | 7 Machines8 Hand | Registered | 2015 |
| MICROSUL 1588439 · TMA861154 | Corteva Agriscience LLC | 1 Chemicals | Registered | 2013 |
| MicroCage 1582713 · TMA858621 | MEGLAB ÉLECTRONIQUE INC. | 9 Electronics | Registered | 2013 |
| MicroGuide 1582709 · TMA858630 | MEGLAB ÉLECTRONIQUE INC. | 9 Electronics | Registered | 2013 |
| MICROGÀRDE 1575328 · TMA874357 · design | an individual | 5 Pharmaceuticals | Registered | 2014 |
| MICROSLICE 1499532 · TMA823152 | BANK OF AMERICA CORPORATION (a Delaware Corporation) | 36 Finance | Registered | 2012 |
| MICROSCRUB 1377836 · TMA738453 | IMPACT PRODUCTS, LLC | 21 Housewares | Registered | 2009 |
| MICROSLICE 1086193 · TMA589487 | URSCHEL LABORATORIES INCORPORATED | 7 Machines | Registered | 2003 |
| MICROSULIS 1006093 · TMA539210 | UK Investment Associates, LLC | 10 Medical | Registered | 2001 |
| MICROSIZE 0719049 · TMA472932 | Nagel Precision Inc. | 7 Machines | Registered | 1997 |
| MICROAGE 0424120 · TMA242609 | Frontier Technology, LLC | 9 Electronics35 Advertising | Registered | 1980 |
| MICROCARE 2213292 | Thor Specialities (UK) Ltd | 1 Chemicals | Pending | 2022 |
| MICROSAR 2076095 · design | Owner not shown | 9 Electronics42 Science | Pending | 2020 |
| MICROSAFE 2073798 · design | an individual | 3 Cosmetics | Pending | 2020 |
| Microstruct 2027648 · TMA1134110 | Cohesive Engineering Inc. | 9 Electronics | Registered | 2022 |