| CARESIMPLE 2079236 | CareSimple Canada Inc. | 9 Electronics42 Science44 Medical | Pending | 2021 |
| CARGOMILER 1906004 · TMA1089353 | African Tire Inc Pte. Ltd. | 12 Vehicles | Registered | 2020 |
| CORECONNECT 1804098 · TMA1040646 | C.R. BARD, INC. A LEGAL ENTITY | 41 Education | Registered | 2019 |
| CoreContact 1531590 · TMA863520 | The Canada Life Assurance Company | 35 Advertising41 Education44 Medical+1 | Registered | 2013 |
| CURACOMP 1387907 · TMA768242 | an individual | 10 Medical | Registered | 2010 |
| CoreXymide 2300485 | SHISEIDO COMPANY, LIMITED | 1 Chemicals3 Cosmetics | Pending | 2023 |
| CrossComply 2096867 | AUDITBOARD, INC., a legal entity | 42 Science | Pending | 2021 |
| CHARISMA 2290168 · TMA1270335 | Owner not listed | 27 Carpets | Registered | 2024 |
| CRESCENT 2264078 · TMA1283348 | KOHLER CO. | 11 Lighting | Registered | 2025 |
| CROISSANTON 2259141 · TMA1279297 | an individual | 30 Coffee35 Advertising | Registered | 2024 |
| CHARGENCO 2249639 · TMA1267426 | LEC Lighting Enhancement Corporation | 9 Electronics37 Construction | Registered | 2024 |
| CARSCNEN 2239737 · TMA1259973 · design | Jiafeng Yongrun Trade (Guangzhou) Co. Ltd | 4 Oils | Registered | 2024 |
| CRGSM 2231297 · TMA1253959 | an individual | 25 Clothing | Registered | 2024 |
| CRESCENT 2221699 · TMA1257909 | Apex Brands, Inc. | 7 Machines | Registered | 2024 |
| CERRXIAN 2204057 · TMA1240040 · design | an individual | 9 Electronics | Registered | 2024 |
| CREAKONG 2203755 · TMA1243580 | FIT FOODS LTD. | 5 Pharmaceuticals | Registered | 2024 |
| CREAKONG 2203754 · TMA1261300 | FIT FOODS LTD. | 5 Pharmaceuticals | Registered | 2024 |
| CoreSense 2200766 · TMA1223896 | an individual | 9 Electronics | Registered | 2024 |
| Chargenyang 2189791 · TMA1233634 | an individual | 10 Medical | Registered | 2024 |
| CARGONERDS 2165420 · TMA1282564 · design | Röhlig Logistics GmbH & Co. KG | 9 Electronics39 Transport42 Science | Registered | 2025 |
| CERICOM 2159865 · TMA1275733 · design | Cericom GmbH | 7 Machines9 Electronics | Registered | 2024 |
| CROSSWIND 2158555 · TMA1196008 | RAYPAK, INC. | 7 Machines | Registered | 2023 |
| Cresimo 2153321 · TMA1250867 | Foundation Commerce Foundry LLC | 21 Housewares | Registered | 2024 |
| COREGINS 2152241 · TMA1206373 | Astrix Inc. | 3 Cosmetics5 Pharmaceuticals | Registered | 2023 |
| CHURRASKING 2149511 · TMA1188744 · design | an individual | 8 Hand21 Housewares35 Advertising | Registered | 2023 |