| COMBIDOME 1669329 · TMA1009151 | an individual | 6 Metal16 Paper20 Furniture | Registered | 2018 |
| COMBITROL 1119408 · TMA620640 | Roche Diagnostics GmbH | 1 Chemicals37 Construction | Registered | 2004 |
| COMBITUBE 0876435 · TMA542394 | Covidien LP | 10 Medical | Registered | 2001 |
| COMBITOP 0670128 · TMA448184 | an individual | 16 Paper | Registered | 1995 |
| COMBITOP 0669163 · TMA443790 | an individual | 16 Paper20 Furniture | Registered | 1995 |
| COMPUTRACE 1615936 · TMA876512 | ABSOLUTE SOFTWARE CORPORATION | 9 Electronics16 Paper45 Legal | Registered | 2014 |
| COMBITWIST 1488790 · TMA809188 | August Rüggeberg GmbH & Co. KG | 7 Machines | Registered | 2011 |
| COMBITEST 1298475 · TMA682875 | Ovo Fertility Inc. | 44 Medical | Registered | 2007 |
| COMBITHERM 1226565 · TMA643394 | ALTO-SHAAM, INC. | 11 Lighting | Registered | 2005 |
| COMBIT 1066247 · TMA589112 | combit Software GmbH | 9 Electronics35 Advertising37 Construction+4 | Registered | 2003 |
| COMPUTRACE 0760917 · TMA479016 | ABSOLUTE SOFTWARE CORPORATION | 9 Electronics42 Science | Registered | 1997 |
| COMBIDERM 0549561 · TMA342639 | ConvaTec Inc. | 5 Pharmaceuticals10 Medical | Registered | 1988 |
| COMPITOX 0270739 · TMA130437 | NUFARM UK LIMITED | 5 Pharmaceuticals | Registered | 1963 |
| COMBOTRACK 2285282 | Baker Hughes Holdings LLC | 7 Machines | Pending | 2023 |
| canupdog 2342487 · TMA1285099 | Shenzhen Honghelong Trading Co. Ltd. | 9 Electronics | Registered | 2025 |
| compuda 2260731 · TMA1279509 | Guangzhou Bafubali Import and Export Trade Co. Ltd. | 18 Leather | Registered | 2024 |
| CHAINPATROL 2249312 · TMA1268660 | Owner not listed | 9 Electronics42 Science | Registered | 2024 |
| Cinpode 2227040 · TMA1252624 | Shenzhen Hongming Innovation Co. Ltd. | 18 Leather | Registered | 2024 |
| CANFITCAN 2217310 · TMA1246689 | Guangdong Xizhongxi Technology Co.,Ltd. | 9 Electronics12 Vehicles | Registered | 2024 |
| CONFETTI 2183279 · TMA1207954 | Crayola Properties, Inc. | 16 Paper | Registered | 2023 |
| COMFYTEMP 2156455 · TMA1214419 · design | Shenzhen Yicai Network Technology Co. Ltd | 11 Lighting | Registered | 2023 |
| CAMPETELLA 2136874 · TMA1205086 · design | CAMPETELLA ROBOTIC CENTER S.R.L. | 7 Machines | Registered | 2023 |
| CYMBIOTIKA 2136814 · TMA1236975 | Cymbiotika, LLC | 5 Pharmaceuticals | Registered | 2024 |
| ConFitDance 2100530 · TMA1173815 | an individual | 41 Education | Registered | 2023 |
| CONFIDIAN 2090830 · TMA1191596 | Roche Diabetes Care GmbH | 9 Electronics10 Medical42 Science | Registered | 2023 |