| CSU(C) 0891391 · TMA517903 | CANADIAN NURSES ASSOCIATION ASSOCIATION DES INFIRMIÈRES ET INFIRMIERS DU CANADA | 44 Medical | Registered | 1999 |
| CSU(C) 0906563 · design | CANADIAN NURSES ASSOCIATION | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1994 |
| C+C 2159604 · TMA1232277 | Production Builder Services, Inc. | 42 Science | Registered | 2024 |
| CC C 2143459 · TMA1185503 · design | an individual | 9 Electronics16 Paper41 Education | Registered | 2023 |
| CC C 2052811 · TMA1174449 · design | Owner not shown | 9 Electronics21 Housewares24 Textiles+5 | Registered | 2023 |
| CC C 2033907 · TMA1135022 · design | Zomedica Inc. | 10 Medical | Registered | 2022 |
| CC C 1952325 · TMA1203345 · design | Common C Services, LLC | 3 Cosmetics5 Pharmaceuticals29 Meat+4 | Registered | 2023 |
| CC C 1949136 · TMA1223376 · design | Common C Services, LLC | 3 Cosmetics4 Oils5 Pharmaceuticals+15 | Registered | 2024 |
| CC C 1925254 · TMA1117355 · design | Calgary Sports and Entertainment Corporation | 5 Pharmaceuticals8 Hand9 Electronics+15 | Registered | 2022 |
| C C 1864538 · TMA1059030 · design | CHAMPION FIBERGLASS, INC. | 40 Treatment | Registered | 2019 |
| CC C 1863347 · TMA1048292 · design | an individual | 9 Electronics11 Lighting42 Science | Registered | 2019 |
| C + C 1843506 · TMA1022470 · design | Vitaly Design Ltd. | 14 Jewellery | Registered | 2019 |
| C&C 1767490 · TMA1044631 | NEC CORPORATION | 9 Electronics38 Telecommunications42 Science | Registered | 2019 |
| C & C 1616974 · TMA917969 | ACH C&C LLC | 25 Clothing | Registered | 2015 |
| CC C 1578100 · TMA953174 · design | Acmeda Pty Ltd | 6 Metal19 Building20 Furniture+1 | Registered | 2016 |
| CQ C 1463116 · TMA835146 · design | AUTUMNPAPER LIMITED | 3 Cosmetics9 Electronics14 Jewellery+3 | Registered | 2012 |
| C & C 1432227 · TMA812990 | C&C Industries, Inc. | 6 Metal7 Machines9 Electronics+2 | Registered | 2011 |
| C/C 1391040 · TMA795202 · design | CLACK CORPORATION | 1 Chemicals11 Lighting17 Rubber+1 | Registered | 2011 |
| C&C 1388436 · TMA767017 · design | Canada Optimal Nature Inc. | 5 Pharmaceuticals29 Meat | Registered | 2010 |
| C/C 0448172 · TMA261213 · design | THE CHEMICAL INSTITUTE OF CANADA | 35 Advertising41 Education | Registered | 1981 |
| C.C. 0274462 · TMA137616 | Canadian Club Canada Inc. | 33 Wine | Registered | 1964 |
| CC C 2366387 · design | Kerecis Limited | 9 Electronics42 Science44 Medical | Pending | 2024 |
| C&C 2303047 · design | Owner not shown | 18 Leather20 Furniture24 Textiles+1 | Pending | 2023 |
| CC C 2251104 · design | Owner not listed | 35 Advertising36 Finance41 Education+3 | Pending | 2023 |
| CC C 2225072 · design | Copper Technologies (UK) Limited | 9 Electronics36 Finance42 Science | Pending | 2022 |