| Cmple 2165415 · TMA1257759 | Cmple.com Inc. | 9 Electronics | Registered | 2024 |
| Coinplay 2162776 · TMA1212334 | an individual | 36 Finance | Registered | 2023 |
| COMPLY 1992886 · TMA1252000 | 3M Company | 9 Electronics | Registered | 2024 |
| COMPLEX 1876248 · TMA1117323 | Commerce Media Holdings, LLC | 35 Advertising38 Telecommunications41 Education+1 | Registered | 2022 |
| COMPLEX 1670929 · TMA957655 | Nutricia North America, Inc. | 5 Pharmaceuticals | Registered | 2016 |
| CIMPL 1640174 · TMA911215 | UPLAND SOFTWARE INC. / LOGICIELS UPLAND INC | 9 Electronics16 Paper35 Advertising+3 | Registered | 2015 |
| COMPLEX 1363854 · TMA731992 | Commerce Media Holdings, LLC | 35 Advertising | Registered | 2009 |
| COMPLEX 1363853 · TMA697370 | Commerce Media Holdings, LLC | 38 Telecommunications | Registered | 2007 |
| COMPLY 1001943 · TMA527052 | 3M Company (a Delaware corporation) | 1 Chemicals | Registered | 2000 |
| COMPLY 0710024 · TMA419608 | STANDARD TEXTILE CO. INC. | 5 Pharmaceuticals | Registered | 1993 |
| COMPLY 0660818 · TMA386004 | 3M Company (a Delaware corporation) | 5 Pharmaceuticals16 Paper | Registered | 1991 |
| COMPLET 0490438 · TMA278603 | Diversey, Inc. (a Delaware corporation) | 3 Cosmetics | Registered | 1983 |
| CONAFLEX 0485658 · TMA275848 | H.L. BLACHFORD, LTD./LTEE. | 17 Rubber | Registered | 1983 |
| CINEPLEX 0444748 · TMA257056 | Cineplex Entertainment Limited Partnership | 35 Advertising36 Finance41 Education+2 | Registered | 1981 |
| CONVAL 0393017 · TMA219162 | CONVAL, INC. | 6 Metal | Registered | 1977 |
| Cannaply 2278102 | Magnolia North Ventures Inc. | 42 Science | Pending | 2023 |
| COMPLEO 2253148 | Owner not listed | 9 Electronics | Pending | 2023 |
| COINFIELD 2123028 | an individual | 42 Science | Pending | 2021 |
| CYMBAL 2264072 · TMA1283347 | KOHLER CO. | 11 Lighting | Registered | 2025 |
| COMBFFLE 2257455 · TMA1276340 | KI HING TRADING COMPANY LIMITED | 21 Housewares | Registered | 2024 |
| comfy4all 2253343 · TMA1272892 | an individual | 10 Medical24 Textiles25 Clothing | Registered | 2024 |
| CAMPLUX 2252484 · TMA1274378 | Junsky Appliances Limited | 9 Electronics20 Furniture21 Housewares+1 | Registered | 2024 |
| COMPLETE 2204287 · TMA1249699 | PrimeSource Building Products, Inc. (Delaware Corporation) | 6 Metal8 Hand | Registered | 2024 |
| CANNFLASH 2203909 · TMA1239989 · design | SANTAI SCIENCE INC. | 9 Electronics | Registered | 2024 |
| CIMPLATE 2203744 · TMA1239955 | Canadian Innovative Materials Ltd. | 6 Metal | Registered | 2024 |