| Catchyourdreams 2232236 · TMA1254022 | Fidelis Health Services Inc. | 16 Paper | Registered | 2024 |
| CATCHGRO 2193927 · TMA1259521 | an individual | 9 Electronics41 Education44 Medical | Registered | 2024 |
| CYTOSORBENTS 1935944 · TMA1136049 | CYTOSORBENTS CORPORATION | 10 Medical | Registered | 2022 |
| CYTOSORB 1935943 · TMA1128648 | CYTOSORBENTS CORPORATION | 10 Medical | Registered | 2022 |
| CADCAR 1898847 · TMA1115339 | AST Trust Company (Canada) | 36 Finance42 Science | Registered | 2021 |
| CATCHCORNER 1841886 · TMA1015834 | Team63 Solutions Inc. | 9 Electronics | Registered | 2019 |
| CYTOSURG 1813905 · TMA1005994 | Salvin Dental Specialties, LLC | 10 Medical | Registered | 2018 |
| CUDASHARE 1742529 · TMA1031622 | Barracuda Networks, Inc. | 9 Electronics42 Science | Registered | 2019 |
| CATCHWIRE 1716489 · TMA973207 | WAW Technologies Inc. | 9 Electronics35 Advertising41 Education | Registered | 2017 |
| COTEGRA 1707462 · TMA998696 | Owner not shown | 5 Pharmaceuticals | Registered | 2018 |
| CATEGORY 12 1682154 · TMA909358 | Category 12 Brewing Inc. | 21 Housewares25 Clothing32 Beer | Registered | 2015 |
| CODEGUARD 1665253 · TMA951442 | HUBBELL INCORPORATED | 9 Electronics | Registered | 2016 |
| CEUTICORE 1655972 · TMA916333 | Ceuticore Nutrition Inc. | 5 Pharmaceuticals | Registered | 2015 |
| CYTOGARDE 1603393 · TMA1034526 | Cook Medical Technologies LLC | 5 Pharmaceuticals10 Medical | Registered | 2019 |
| CYTOGREENS 1530892 · TMA829906 | Allmax Nutrition Inc. | 5 Pharmaceuticals | Registered | 2012 |
| CITYGRID 1499292 · TMA918362 | CityGrid Media, LLC | 35 Advertising | Registered | 2015 |
| CityGreen 1473395 · TMA793419 | Strata Innovations Pty Limited | 6 Metal19 Building20 Furniture | Registered | 2011 |
| CatégorieSélect 1404327 · TMA752501 | BANK OF MONTREAL | 36 Finance | Registered | 2009 |
| CATOGRAPHY 1324094 · TMA838535 | Guy Carpenter & Company, LLC | 42 Science45 Legal | Registered | 2012 |
| CEDESORB 1263816 · TMA711468 | an individual | 1 Chemicals | Registered | 2008 |
| CYTOCHROMA 1215000 · TMA828984 · design | Cytochroma Inc. | 5 Pharmaceuticals9 Electronics10 Medical+1 | Registered | 2012 |
| CYDCOR 1191613 · TMA655631 | Cydcor LLC | 35 Advertising | Registered | 2005 |
| COATCARE 1045705 · TMA618483 | Mars Canada Inc. | 31 Fresh | Registered | 2004 |
| CUTICURA 0990084 · NFLD84 | THE DIAL CORPORATION (A DELAWARE CORPORATION) | 5 Pharmaceuticals | Registered | 1899 |
| CHEWITSAURUS 0885317 · TMA533042 | Owner not shown | 30 Coffee | Registered | 2000 |