| CENS 1586200 · TMA865213 | an individual | 35 Advertising40 Treatment42 Science | Registered | 2013 |
| CHENS 2358063 · design | Chens Enterprises Corporation | 35 Advertising36 Finance39 Transport | Pending | 2024 |
| C2SENSE 1769351 · TMA1032640 | C2Sense, Inc. | 9 Electronics42 Science | Registered | 2019 |
| CANS 2106387 · TMA1229265 | JOHNSON MATTHEY DAVY TECHNOLOGIES LIMITED | 7 Machines37 Construction42 Science | Registered | 2024 |
| CaEng 1900408 · TMA1089453 | Canadian Engineering Associates Ltd. | 42 Science | Registered | 2020 |
| CENX 1692618 · TMA928678 | an individual | 9 Electronics35 Advertising42 Science | Registered | 2016 |
| CSYNC 1634350 · TMA944538 | TEVA PHARMACEUTICAL INDUSTRIES LIMITED, a legal entity | 10 Medical | Registered | 2016 |
| CANS 1613611 · TMA900606 | THREE HEADED PRODUCTIONS, INC. (a corporation of Illinois) | 43 Restaurants | Registered | 2015 |
| CEMS 1477417 · TMA848705 | Owner not shown | 41 Education | Registered | 2013 |
| CNS 1395399 · TMA745798 | RSA Insurance Group Limited | 36 Finance | Registered | 2009 |
| CNEWS 0857044 · TMA500629 | Postmedia Network Inc. | 38 Telecommunications41 Education | Registered | 1998 |
| CONS 0767939 · TMA455425 | an individual | 16 Paper18 Leather21 Housewares | Registered | 1996 |
| CONS 0633711 · TMA377220 | an individual | 25 Clothing | Registered | 1990 |
| CAINS 0395082 · TMA226210 | Meal Preparation, Inc. | 29 Meat30 Coffee | Registered | 1978 |
| CENK 2087269 | ImmunityBio, Inc. | 1 Chemicals5 Pharmaceuticals44 Medical | Pending | 2021 |
| CHENOYS 0670363 · TMA435069 | N.K.D.S. CONSULTANTS AND INVESTMENTS INC. | 29 Meat30 Coffee43 Restaurants | Registered | 1994 |
| CHUNCHIU 2264469 · TMA1284854 · design | YONGSHENG INTERNATIONAL BRAND MANAGEMENT GROUP CO. LIMITED | 10 Medical | Registered | 2025 |
| CONSCO 2256123 · TMA1279193 | LES ALIMENTS CONSCO FOODS INC. | 29 Meat35 Advertising39 Transport+1 | Registered | 2024 |
| CAANQI 2253364 · TMA1271535 | Anqi Houshold CA Inc. | 11 Lighting18 Leather20 Furniture | Registered | 2024 |
| CANUCKS 2241870 · TMA1241949 · design | Vancouver Canucks Limited Partnership | 9 Electronics14 Jewellery16 Paper+5 | Registered | 2024 |
| CANACK 2233686 · TMA1254140 · design | Canack Technology Ltd | 10 Medical | Registered | 2024 |
| CANACK 2230188 · TMA1252964 · design | Canack Technology Ltd | 10 Medical | Registered | 2024 |
| CAMEOS 2225967 · TMA1252563 | PlayMonster Group LLC | 28 Toys | Registered | 2024 |
| CScience 2222176 · TMA1268472 | 9476-8082 Québec Inc. | 9 Electronics41 Education | Registered | 2024 |
| CANIX 2215654 · TMA1233967 | Entrc, Inc. | 9 Electronics42 Science | Registered | 2024 |