| MICROSAFE 1995856 · TMA1102986 | DRUMMOND SCIENTIFIC COMPANY | 10 Medical | Registered | 2021 |
| MICROSTEAM 1978049 · TMA1245878 | Aqua Star (USA), Corp. | 29 Meat | Registered | 2024 |
| MICROSTEAM 1790768 · TMA1035445 | Reckitt & Colman (Overseas) Health Limited | 10 Medical | Registered | 2019 |
| MICROSTRAIN 1249210 · TMA669132 | Hottinger Bruel & Kjaer Inc. | 9 Electronics | Registered | 2006 |
| MICRUSPHERE 1074071 · TMA572184 | DePuy Synthes, Inc. | 10 Medical | Registered | 2002 |
| 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 |
| MICROSURGE 2195688 | TALC USA, LLC | 1 Chemicals | Pending | 2022 |
| MICROSAFE 2073798 · design | an individual | 3 Cosmetics | Pending | 2020 |
| MICROSTRATEGY 1946549 · TMA1227504 | MicroStrategy Incorporated | 9 Electronics41 Education42 Science | Registered | 2024 |
| MICROAGE 2132041 · TMA1195823 | FRONTIER TECHNOLOGY, LLC, LIMITED LIABILITY COMPANY ARIZONA | 37 Construction42 Science | Registered | 2023 |
| MICROSMART 2116369 · TMA1191957 | an individual | 7 Machines | Registered | 2023 |
| Microstruct 2027648 · TMA1134110 | Cohesive Engineering Inc. | 9 Electronics | Registered | 2022 |
| MICROSTRONG 1909505 · TMA1089091 | Freudenberg Household Products LP | 21 Housewares | Registered | 2020 |
| MICROSCAN 1875146 · TMA1134286 · design | OMRON CORPORATION | 9 Electronics11 Lighting | Registered | 2022 |
| MICROSEAL 1810268 · TMA1031374 | Micropulse, Inc. | 39 Transport | Registered | 2019 |
| MICROSOLVE 1774502 · TMA1055571 | an individual | 5 Pharmaceuticals | Registered | 2019 |
| MICROSPAR 1662409 · TMA1044737 | QUARZWERKE GMBH | 19 Building | Registered | 2019 |
| MICROCORE 1655866 · TMA921511 | an individual | 7 Machines8 Hand | Registered | 2015 |
| MICROSTAR 1593338 · TMA884314 | Mirka Ltd | 3 Cosmetics7 Machines | Registered | 2014 |
| MicroCage 1582713 · TMA858621 | MEGLAB ÉLECTRONIQUE INC. | 9 Electronics | Registered | 2013 |
| MICROGÀRDE 1575328 · TMA874357 · design | an individual | 5 Pharmaceuticals | Registered | 2014 |
| MICROSHEATH 1503407 · TMA868643 | C.R. BARD, INC. A LEGAL ENTITY | 10 Medical | Registered | 2014 |
| MICROSLICE 1499532 · TMA823152 | BANK OF AMERICA CORPORATION (a Delaware Corporation) | 36 Finance | Registered | 2012 |