| CROCKER 1140208 · TMA621760 | CROCKER MOTORCYCLE CO. INC. | 12 Vehicles25 Clothing | Registered | 2004 |
| CROCKER 2060024 · design | Guangzhou Yunduan Sharing Industrial Co. Ltd | 18 Leather25 Clothing | Pending | 2020 |
| CRAGAR 0313363 · TMA161878 | The Carlstar Group LLC | 7 Machines9 Electronics12 Vehicles | Registered | 1969 |
| CAROCARE 1282623 · TMA714919 | an individual | 1 Chemicals | Registered | 2008 |
| CAROCARE 1986699 | an individual | 5 Pharmaceuticals | Pending | 2019 |
| CREGEAR 2216320 · TMA1249749 · design | Shenzhen omeida E-commerce Ltd. | 16 Paper | Registered | 2024 |
| CROOZER 1765590 · TMA1020033 · design | Croozer GmbH | 12 Vehicles | Registered | 2019 |
| CROOZER 1579971 · TMA859298 | Croozer GmbH | 12 Vehicles | Registered | 2013 |
| CROSSER 1503408 · TMA878067 | C.R. BARD, INC. A LEGAL ENTITY | 10 Medical | Registered | 2014 |
| CARICAR 2324581 | Owner not shown | 12 Vehicles | Pending | 2024 |
| CROOZER 2243031 · design | Croozer GmbH | 12 Vehicles | Pending | 2023 |
| CRACKWEAR 1718307 · TMA1052021 | G & M Renew-A-Krete Ltd. | 25 Clothing | Registered | 2019 |
| CRACKAIRS 0827360 · TMA489774 | Owner not shown | 30 Coffee | Registered | 1998 |
| CROSSHAIR 2246648 | Crosshair Ventures Corp. | 7 Machines9 Electronics11 Lighting+5 | Pending | 2023 |
| CURACORO 2314425 · TMA1278021 | 11177753 Canada Corporation | 3 Cosmetics35 Advertising | Registered | 2024 |
| CRAZYROPE 2252765 · TMA1271494 | Fantu Shengke (Changzhou) Sporting Goods Technology Co. Ltd. | 28 Toys | Registered | 2024 |
| CERACORE 2252741 · TMA1282983 | DREW BRADY & CO. LIMITED | 25 Clothing | Registered | 2025 |
| Cargair 2243498 · TMA1282941 | CARGAIR LTEE | 41 Education | Registered | 2025 |
| CHARZORG 2243160 · TMA1251619 | Owner not listed | 1 Chemicals | Registered | 2024 |
| CRESCERA 2227513 · TMA1252692 | BASF Agricultural Solutions Canola US LLC | 1 Chemicals31 Fresh | Registered | 2024 |
| CROSSERY 2213897 · TMA1244330 | Adventure & Tackle Outfitters LLC | 9 Electronics28 Toys | Registered | 2024 |
| Cyrusher 2179930 · TMA1230169 | Shenzhen Cyrusher Technology Co. Ltd. | 12 Vehicles | Registered | 2024 |
| CherryGrow 2169428 · TMA1214595 | TerraLink Horticulture Inc. | 1 Chemicals | Registered | 2023 |
| COURSER 2157412 · TMA1205405 | Courser International Limited | 25 Clothing | Registered | 2023 |
| CIRCORED 2156430 · TMA1241078 | an individual | 7 Machines11 Lighting40 Treatment+1 | Registered | 2024 |