| COOLADA 1417258 · TMA804486 | Victoria's Secret Stores Brand Management, LLC | 3 Cosmetics | Registered | 2011 |
| CLADE 2027408 · TMA1278068 | an individual | 18 Leather25 Clothing35 Advertising | Registered | 2024 |
| CYLAD 2017257 · TMA1242222 | CYLAD | 35 Advertising41 Education42 Science | Registered | 2024 |
| CALDO 2238514 | P.C. Campana, Inc. | 6 Metal7 Machines | Pending | 2022 |
| COLLATIO 1663673 · TMA913821 | MAISON DE LA POMME DE FRELIGHSBURG INC. | 31 Fresh | Registered | 2015 |
| CALÉIDO 2138419 · TMA1179541 · design | M.S.TRADING Company Limited | 25 Clothing | Registered | 2023 |
| Coloody 2076407 · TMA1162589 | Wuhan Yunni Technology Co. Ltd | 25 Clothing | Registered | 2023 |
| ColoAid 1879601 · TMA1086717 | Owner not shown | 5 Pharmaceuticals | Registered | 2020 |
| COLWOOD 1757188 · TMA961979 · design | TWAM VENTURE GROUP LTD. | 18 Leather25 Clothing | Registered | 2017 |
| CALIDOU 1692454 · TMA923522 · design | 9191-6346 Québec Inc. | 3 Cosmetics | Registered | 2015 |
| CALIDOU 0884610 · TMA516488 · design | 9191-6346 Québec Inc. | 3 Cosmetics10 Medical11 Lighting+5 | Registered | 1999 |
| CALADAY 0535882 · TMA315525 | FINCHLEY RESEARCH & DEVELOPMENT INC. | 5 Pharmaceuticals | Registered | 1986 |
| CHALET 2310186 · TMA1257139 | Delta Faucet Company | 11 Lighting | Registered | 2024 |
| COLT 2286925 · TMA1281571 | Colt's Manufacturing IP Holding Company LLC | 13 Firearms | Registered | 2025 |
| COLT 2286920 · TMDA56264 · design | an individual | 6 Metal7 Machines9 Electronics+2 | Registered | 1933 |
| COLT 2286919 · TMDA56264 · design | Colt's Manufacturing IP Holding Company LLC | 13 Firearms | Registered | 1933 |
| Coold 2264825 · TMA1283451 | Vancouver Community Garden Builders Inc. | 11 Lighting25 Clothing | Registered | 2025 |
| CGLTD 2255029 · TMA1279177 · design | Custom Gaskets Ltd. | 6 Metal7 Machines16 Paper+3 | Registered | 2024 |
| Cloud7 2237046 · TMA1253108 | Cloud7 GmbH | 18 Leather20 Furniture | Registered | 2024 |
| Caliwood 2214740 · TMA1246593 | an individual | 25 Clothing35 Advertising | Registered | 2024 |
| Cileday 2167804 · TMA1213533 | Shenzhen Huoshi Network Technology Co. Ltd. | 28 Toys | Registered | 2023 |
| Coolhut 2166261 · TMA1213438 | Ningbo Cishi Trading Co. Ltd. | 9 Electronics | Registered | 2023 |
| CULTI 2165837 · TMA1249598 · design | an individual | 3 Cosmetics4 Oils5 Pharmaceuticals | Registered | 2024 |
| CLOUD 2161882 · TMA1249579 | Smarter Homes Ltd. | 35 Advertising36 Finance37 Construction | Registered | 2024 |
| CGSULIT 2150085 · TMA1217293 | Shenzhen Changguang Technology Co. Ltd. | 9 Electronics | Registered | 2024 |