| COMPAMED 0702835 · TMA412161 | MESSE DUSSELDORF GMBH | 35 Advertising41 Education | Registered | 1993 |
| CAMPMINDER 2129711 · design | CampMinder, LLC | 35 Advertising42 Science | Pending | 2021 |
| CAMPMINDER 2098725 | CampMinder, LLC | 35 Advertising42 Science | Pending | 2021 |
| COMFYMOVE 2261010 · TMA1279542 | 1895968 Ontario Inc. | 39 Transport45 Legal | Registered | 2024 |
| COMBINED 2208163 · TMA1241593 · design | COMBINED INSURANCE COMPANY OF AMERICA | 9 Electronics35 Advertising36 Finance+1 | Registered | 2024 |
| COMBINE 2183064 · TMA1230411 | CENTURY GROUP LANDS CORPORATION | 43 Restaurants | Registered | 2024 |
| COMPANION 2045450 · TMA1282058 | an individual | 9 Electronics44 Medical | Registered | 2025 |
| COMBINE 2008763 · TMA1160936 · design | LIDL STIFTUNG & CO. KG | 20 Furniture | Registered | 2023 |
| COMBIONE 1956802 · TMA1088397 | Colpac Limited | 16 Paper | Registered | 2020 |
| COMPANIO 1813246 · TMA1073146 | an individual | 9 Electronics10 Medical38 Telecommunications+2 | Registered | 2020 |
| COMPANION 1571433 · TMA861105 | Uniwell International Enterprises Corp | 12 Vehicles35 Advertising37 Construction | Registered | 2013 |
| COMPOUND 1537061 · TMA910833 | Zumiez Services Inc. a Washington corporation | 28 Toys | Registered | 2015 |
| COMBINE 1460271 · TMA843425 | Under Armour, Inc. | 25 Clothing28 Toys | Registered | 2013 |
| COMPANION 1391808 · TMA743660 | GROWTH PRODUCTS LTD., a Corporation of the State of New York | 5 Pharmaceuticals | Registered | 2009 |
| CAMPINE 1197021 · TMA629666 | CAMPINE , joint stock company | 1 Chemicals | Registered | 2005 |
| COMPANION 1176102 · TMA621713 | BOSE CORPORATION | 9 Electronics | Registered | 2004 |
| COMPANION 1093738 · TMA711496 | DPH Biologicals, LLC | 1 Chemicals | Registered | 2008 |
| CombiMat 1080573 · TMA579023 | JOHNS MANVILLE EUROPE GMBH | 1 Chemicals11 Lighting17 Rubber+3 | Registered | 2003 |
| COMPANION 1042698 · TMA553523 · design | GROUPE CIS LTÉE/CIS GROUP LTD | 35 Advertising | Registered | 2001 |
| COMPANION 1034472 · TMA587532 | Transform SR Brands LLC | 7 Machines8 Hand9 Electronics+3 | Registered | 2003 |
| COMPANION 1034471 · TMA545837 · design | Transform SR Brands LLC | 7 Machines8 Hand9 Electronics+2 | Registered | 2001 |
| CAMPANILE 0878760 · TMA531865 | Treasury Wine Estates Americas Company | 33 Wine | Registered | 2000 |
| COMBIMAT 0804138 · TMA479899 | Owner not shown | 11 Lighting | Registered | 1997 |
| COMBIMAX 0792753 · TMA480601 | an individual | 7 Machines11 Lighting12 Vehicles+1 | Registered | 1997 |
| COMPANION 0709142 · TMA440817 | Industrielle Alliance, Assurance et services financiers inc. / Industrial Alliance Insurance and Financial Services Inc. | 36 Finance | Registered | 1995 |