| CORECHECK 1910927 · TMA1096366 | Galvion Ltd. | 9 Electronics | Registered | 2021 |
| CORECHECK 2292009 | an individual | 9 Electronics42 Science | Pending | 2023 |
| CoreShack 1605571 · TMA883370 | Trans Globe Communications inc. | 35 Advertising38 Telecommunications41 Education+1 | Registered | 2014 |
| CRYOCHECK 1515189 · TMA851348 | Precision BioLogic Incorporated. | 5 Pharmaceuticals | Registered | 2013 |
| CARECHECK 2349312 | Jettsen Pty Ltd | 38 Telecommunications | Pending | 2024 |
| CROCUS 1670859 · TMA919705 | an individual | 33 Wine | Registered | 2015 |
| CROJACK 2358268 | CROJACK CAPITAL INC. | 35 Advertising | Pending | 2024 |
| CRICKGIZER 2229344 · TMA1259660 | Claireport Corporation | 1 Chemicals | Registered | 2024 |
| CHARGECORE 2169687 · TMA1220644 | SHENZHEN CARKU.TECHNOLOGY CO.LTD | 7 Machines9 Electronics12 Vehicles | Registered | 2024 |
| CROCKIES 2161581 · TMA1211202 | Canadian Rockies Natural Spring Water Inc. | 32 Beer | Registered | 2023 |
| CROCKIES 2161578 · TMA1213249 · design | Canadian Rockies Natural Spring Water Inc. | 32 Beer | Registered | 2023 |
| Crzwok 2130261 · TMA1193728 | Shenzhen Skyline Telecom Co. Ltd | 9 Electronics | Registered | 2023 |
| CORESIGNAL 2090757 · TMA1209547 · design | Binary House LLC | 9 Electronics35 Advertising38 Telecommunications+1 | Registered | 2023 |
| CRAccessories 2075530 · TMA1168454 | an individual | 9 Electronics | Registered | 2023 |
| CROSSEIGHT 2068962 · TMA1175620 · design | DONGGUAN PENGYUAN INDUSTRIAL CO. LTD. | 25 Clothing | Registered | 2023 |
| CHARGEGUARD 2063177 · TMA1225803 | Havis, Inc. | 9 Electronics | Registered | 2024 |
| Corciosy 2029785 · TMA1160036 | Yangzhou Xinyichao Shoes Co.Ltd | 21 Housewares | Registered | 2023 |
| Croquis 2021869 · TMA1166433 | Samyang Holdings Corporation | 10 Medical | Registered | 2023 |
| CrazyCap 2020783 · TMA1164199 | UBO-Technologies | 11 Lighting | Registered | 2023 |
| CRAZIX 2007557 · TMA1134829 | DJECO | 28 Toys | Registered | 2022 |
| CARGOWISE 2006437 · TMA1143482 · design | WiseTech Global (Licensing) Pty Ltd | 9 Electronics41 Education42 Science | Registered | 2022 |
| CHEERYCHEWS 2005886 · TMA1273510 · design | Infin8 Brands Inc. | 30 Coffee35 Advertising | Registered | 2024 |
| CURCUGEN 2005272 · TMA1196324 | Dolcas Biotech, LLC | 5 Pharmaceuticals | Registered | 2023 |
| CURCUGENESIS 2004302 · TMA1146532 | Dolcas Biotech, LLC | 5 Pharmaceuticals | Registered | 2022 |
| Carassauga 1979302 · TMA1155921 | Carassauga Festival Inc. | 35 Advertising41 Education | Registered | 2022 |