| COMVITA 1875869 · TMA1217836 | Comvita Limited | 3 Cosmetics5 Pharmaceuticals29 Meat+3 | Registered | 2024 |
| COMVITA 1471190 · TMA860137 · design | Comvita Limited | 3 Cosmetics5 Pharmaceuticals29 Meat+5 | Registered | 2013 |
| COMVITA 1266768 · TMA685096 | Comvita Limited | 3 Cosmetics5 Pharmaceuticals30 Coffee | Registered | 2007 |
| compuda 2260731 · TMA1279509 | Guangzhou Bafubali Import and Export Trade Co. Ltd. | 18 Leather | Registered | 2024 |
| CONVID 2018893 · TMA1135642 | an individual | 38 Telecommunications | Registered | 2022 |
| CANAVIDA 2001074 · TMA1129028 | GREAT MOUNTAIN GINSENG CO. LTD. | 5 Pharmaceuticals29 Meat30 Coffee+1 | Registered | 2022 |
| COMBIDEX 1868482 · TMA1068282 | Owner not shown | 5 Pharmaceuticals | Registered | 2020 |
| Canvita 2046368 · TMA1215882 | Canvita Canada ltd | 5 Pharmaceuticals | Registered | 2023 |
| ComFit 1877751 · TMA1060900 | TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION | 7 Machines | Registered | 2019 |
| COMBIT 1066247 · TMA589112 | combit Software GmbH | 9 Electronics35 Advertising37 Construction+4 | Registered | 2003 |
| COMPTIA 0774674 · TMA477498 | THE COMPUTING TECHNOLOGY INDUSTRY ASSOCIATION, INC. | 35 Advertising | Registered | 1997 |
| COMPTIA 2171993 | The Computing Technology Industry Association, Inc. DBA CompTIA, Inc. a legal entity | 35 Advertising41 Education42 Science | Pending | 2022 |
| COMFIT 2142104 · design | Specsavers Optical Superstores Limited | 9 Electronics | Pending | 2021 |
| CONVAID 2000587 | Convaid Products LLC. | 10 Medical12 Vehicles35 Advertising | Pending | 2019 |
| CONFIDIAN 2090830 · TMA1191596 | Roche Diabetes Care GmbH | 9 Electronics10 Medical42 Science | Registered | 2023 |
| COMBIDISC 1982822 · TMA1099080 · design | August Rüggeberg GmbH & Co. KG | 7 Machines | Registered | 2021 |
| CONFIDIAN 1904156 · TMA1067094 | Roche Diabetes Care GmbH | 1 Chemicals5 Pharmaceuticals | Registered | 2019 |
| CONFIDIAN 1903593 · TMA1067071 | Roche Diabetes Care GmbH | 9 Electronics38 Telecommunications42 Science+1 | Registered | 2019 |
| CONFIDIAN 1849170 · TMA1050594 | Roche Diabetes Care GmbH | 9 Electronics42 Science | Registered | 2019 |
| COMBIDOME 1669329 · TMA1009151 | an individual | 6 Metal16 Paper20 Furniture | Registered | 2018 |
| CONFIDANT 1623544 · TMA904698 | KOHLER CO. | 7 Machines12 Vehicles | Registered | 2015 |
| COMBIDERM 0549561 · TMA342639 | ConvaTec Inc. | 5 Pharmaceuticals10 Medical | Registered | 1988 |
| CONFIDERA 2169031 | INTERNATIONAL FLAVORS & FRAGRANCES INC. | 35 Advertising42 Science | Pending | 2022 |
| canupdog 2342487 · TMA1285099 | Shenzhen Honghelong Trading Co. Ltd. | 9 Electronics | Registered | 2025 |
| CHAINPATROL 2249312 · TMA1268660 | Owner not listed | 9 Electronics42 Science | Registered | 2024 |