| CERCOM 1815820 · TMA1013978 · design | an individual | 19 Building27 Carpets | Registered | 2019 |
| CIRCUM 1543683 · TMA866373 | an individual | 3 Cosmetics21 Housewares | Registered | 2013 |
| CorZymes 1950467 · TMA1194447 | CorRem Corporation | 1 Chemicals | Registered | 2023 |
| CERICOM 2159865 · TMA1275733 · design | Cericom GmbH | 7 Machines9 Electronics | Registered | 2024 |
| CORZYNA 2031937 · TMA1266610 | Kye Pharmaceuticals Inc. | 5 Pharmaceuticals | Registered | 2024 |
| CURICYN 1898258 · TMA1048970 · design | Eastern Technologies, Inc. | 5 Pharmaceuticals | Registered | 2019 |
| CURICYN 1862583 · TMA1062157 | Eastern Technologies, Inc. | 5 Pharmaceuticals | Registered | 2019 |
| CORISMO 1793665 · TMA990311 · design | an individual | 9 Electronics | Registered | 2018 |
| CARICOM 0971308 | CARIBBEAN COMMUNITY / COMMUNAUTÉ DES CARAÏBES | All goods and services | Protected | 2001 |
| CORAGUM 0175948 · UCA12056 | Corn Products Development, Inc. | 17 Rubber30 Coffee | Registered | 1939 |
| CRGSM 2231297 · TMA1253959 | an individual | 25 Clothing | Registered | 2024 |
| CURCUMED 2091180 · TMA1219005 | MODERN PHARM Naturprodukte GmbH | 5 Pharmaceuticals30 Coffee32 Beer | Registered | 2024 |
| CORESYNC 1907512 · TMA1119819 | Molex, LLC | 9 Electronics11 Lighting37 Construction+1 | Registered | 2022 |
| CURCUMSK 1854432 · TMA1030176 | Biologic Publishing Inc. | 5 Pharmaceuticals | Registered | 2019 |
| COREYKIN 1828105 · TMA1008399 · design | an individual | 9 Electronics11 Lighting | Registered | 2018 |
| COERCION 1677626 · TMA917948 | THE TJX COMPANIES, INC. | 25 Clothing | Registered | 2015 |
| CORESCAN 1633758 · TMA932451 | an individual | 9 Electronics42 Science | Registered | 2016 |
| CORESCAN 1523263 · TMA865287 | GE Precision Healthcare LLC | 9 Electronics | Registered | 2013 |
| CURACOMP 1387907 · TMA768242 | an individual | 10 Medical | Registered | 2010 |
| CERCON 1117640 · TMA593718 | DeguDent GmbH | 5 Pharmaceuticals9 Electronics | Registered | 2003 |
| CRCHUM 0919435 | CENTRE HOSPITALIER DE L'UNIVERSITÉ DE MONTRÉAL | All goods and services | Protected | 2010 |
| CIRCON 0769286 · TMA457928 | Efficient Building Automation Corp. | 9 Electronics11 Lighting12 Vehicles+2 | Registered | 1996 |
| CEREZYME 0746594 · TMA439958 | Genzyme Corporation | 5 Pharmaceuticals | Registered | 1995 |
| CORZAN 0737402 · TMA475295 | Lubrizol Advanced Materials, Inc. | 1 Chemicals17 Rubber | Registered | 1997 |
| CAREZYME 0672318 · TMA409033 | Owner not shown | 1 Chemicals | Registered | 1993 |