| CASNITY 2095624 · TMA1181638 | Guangzhou Shoujia Electronic Technology Co.Ltd. | 21 Housewares | Registered | 2023 |
| COSNET 1994372 · TMA1233167 · design | COSNET | 6 Metal7 Machines19 Building+2 | Registered | 2024 |
| COCONUT 1624616 · TMA884060 | AMERICAN GIRL, LLC | 28 Toys | Registered | 2014 |
| CASHNET 0779083 · TMA479253 | ROYAL BANK OF CANADA | 36 Finance | Registered | 1997 |
| COCONUT 2071386 | TTP INVESTMENTS LIMITED | 9 Electronics35 Advertising41 Education+2 | Pending | 2020 |
| CIGNITION 2258792 · TMA1279272 | Cignition, Inc. | 41 Education | Registered | 2024 |
| COSMETTE 2250573 · TMA1268842 | Owner not listed | 3 Cosmetics4 Oils8 Hand+4 | Registered | 2024 |
| ChicWind 2223185 · TMA1249894 | an individual | 25 Clothing | Registered | 2024 |
| CHAIZONED 2163077 · TMA1213279 | an individual | 35 Advertising | Registered | 2023 |
| Cosmeticide 2130854 · TMA1221264 | The Stockroom (Kent) Limited | 1 Chemicals3 Cosmetics5 Pharmaceuticals+2 | Registered | 2024 |
| Chicmyth 2101131 · TMA1173876 | an individual | 28 Toys | Registered | 2023 |
| COGNITAVEN 2094758 · TMA1166042 | Anklam Extrakt GmbH | 1 Chemicals5 Pharmaceuticals30 Coffee | Registered | 2023 |
| Cuekondy 2088281 · TMA1184896 | an individual | 8 Hand | Registered | 2023 |
| CECYONT 2070256 · TMA1159317 | Merck Sharp & Dohme LLC | 5 Pharmaceuticals | Registered | 2023 |
| Cosmethical 2066157 · TMA1126440 | ZORAH BIO COSMÉTIQUES INC. | 3 Cosmetics | Registered | 2022 |
| Cosmitty 2065357 · TMA1178684 | an individual | 3 Cosmetics8 Hand35 Advertising | Registered | 2023 |
| COSMOTRON 2064738 · TMA1180061 | Cosmotron Limited | 9 Electronics | Registered | 2023 |
| COGNADIN 2061091 · TMA1155272 | UBAVET Ltd. | 5 Pharmaceuticals | Registered | 2022 |
| COZZMTS 2058308 · TMA1170915 | an individual | 7 Machines | Registered | 2023 |
| CYCMOTOR 2041661 · TMA1183564 | CYC MOTOR LIMITED | 12 Vehicles | Registered | 2023 |
| COGNYTICS 2005518 · TMA1279920 | ECI Software Solutions, Inc. | 9 Electronics42 Science | Registered | 2025 |
| COACHMATE 2000664 · TMA1129021 | COACHMATE LIMITED | 9 Electronics35 Advertising41 Education+1 | Registered | 2022 |
| CHECKMATE 1971488 · TMA1240681 | MOCON, INC. | 9 Electronics | Registered | 2024 |
| COGNITION + 1956951 · TMA1213673 · design | COGNITION+ INC. | 9 Electronics42 Science | Registered | 2023 |
| CYGENTA 1954668 · TMA1283633 | CYGENTA LIMITED | 9 Electronics41 Education42 Science+1 | Registered | 2025 |