| METAFIL 0888782 · TMA533884 | VESUVIUS U S A CORPORATION | 5 Pharmaceuticals6 Metal | Registered | 2000 |
| METAFILE 0494634 · TMA286540 | METAFILE INFORMATION SYSTEMS INC. | 9 Electronics | Registered | 1984 |
| METAFLEX 2022952 · TMA1224135 · design | an individual | 6 Metal19 Building37 Construction | Registered | 2024 |
| METAFLEX 2022946 · TMA1190328 | an individual | 6 Metal19 Building37 Construction | Registered | 2023 |
| METAPILL 1808331 · TMA994833 | an individual | 5 Pharmaceuticals | Registered | 2018 |
| METAFLEX 1118480 · TMA616957 | Owner not shown | 2 Paints | Registered | 2004 |
| METFILM 0315368 · TMA163154 | DEARBORN ELECTRONICS INC. | 9 Electronics | Registered | 1969 |
| MOTOFIL 2245516 · TMA1265712 · design | an individual | 7 Machines | Registered | 2024 |
| METABOLY 2205001 · TMA1240114 | METABOLY RESEARCH GROUP INC. | 42 Science44 Medical | Registered | 2024 |
| MATFILL 1944785 · TMA1188994 | Biotechnology Institute, S.L. | 5 Pharmaceuticals10 Medical | Registered | 2023 |
| METAPLEX 1797883 · TMA1049933 | Schlumberger Canada Limited | 6 Metal7 Machines17 Rubber+2 | Registered | 2019 |
| METAFOLIN 1468725 · TMA850337 · design | an individual | 5 Pharmaceuticals | Registered | 2013 |
| METAFOLIN 1387637 · TMA752489 | an individual | 1 Chemicals5 Pharmaceuticals | Registered | 2009 |
| MÉDIAFILM 1327300 · TMA704546 | ORGANISATION COMMUNICATIONS ET SOCIÉTÉ OCS INC. | 38 Telecommunications41 Education | Registered | 2008 |
| MEDBUILD 1235847 · TMA648102 | Williams Scotsman, Inc. | 36 Finance37 Construction42 Science | Registered | 2005 |
| METAFOLIN 1020751 · TMA773235 | an individual | 5 Pharmaceuticals | Registered | 2010 |
| METAFLUX 0884751 · TMA533599 · design | an individual | 1 Chemicals7 Machines9 Electronics | Registered | 2000 |
| METABLEN 0335600 · TMA199013 | Mitsubishi Chemical Corporation | 1 Chemicals | Registered | 1974 |
| METAPLEX 2238260 | Metaplex Studios, Inc. | 9 Electronics35 Advertising36 Finance+1 | Pending | 2022 |
| METHOFILL 2223894 | Accord Healthcare Limited | 5 Pharmaceuticals10 Medical | Pending | 2022 |
| METAVOLT 2173733 | Performance Designed Products LLC | 9 Electronics | Pending | 2022 |
| MODOOPLAY 2123813 · TMA1268254 · design | Nanjing Modoo Interactive Entertainment Information Technology Co. Ltd. | 9 Electronics35 Advertising41 Education+1 | Registered | 2024 |
| metFlow 2118071 · TMA1213031 | Nedschroef Altena GmbH | 6 Metal | Registered | 2023 |
| MITUBULARS 2098011 · TMA1219025 | Marubeni-Itochu Steel Inc. | 6 Metal9 Electronics35 Advertising+4 | Registered | 2024 |
| MEDIBULK 2086118 · TMA1168728 · design | Western Extraction Ltd. | 5 Pharmaceuticals34 Tobacco | Registered | 2023 |