| CUWATER 0806420 · TMA473942 | CU WATER LIMITED | 35 Advertising42 Science | Registered | 1997 |
| CUTTER 2171513 · TMA1186816 | UNITED INDUSTRIES CORPORATION | 5 Pharmaceuticals8 Hand10 Medical | Registered | 2023 |
| CUTTER 2143235 · TMA1284309 | UNITED INDUSTRIES CORPORATION | 4 Oils5 Pharmaceuticals7 Machines+2 | Registered | 2025 |
| CUTTER 2068097 · TMA1208243 | UNITED INDUSTRIES CORPORATION | 5 Pharmaceuticals | Registered | 2023 |
| CATER 1910261 · TMA1103449 | KOHLER CO. | 11 Lighting21 Housewares | Registered | 2021 |
| CUTTER 1769248 · TMA981224 | Owner not shown | 20 Furniture21 Housewares27 Carpets+1 | Registered | 2017 |
| CUTTER 0160753 · UCA2000 | United Industries Corporation (a Delaware corporation) | 1 Chemicals5 Pharmaceuticals10 Medical | Registered | 1932 |
| Cheater 1545136 · TMA844299 | Shipman Associates LLC | 3 Cosmetics | Registered | 2013 |
| CHATTER 1512884 · TMA944445 | Salesforce, Inc. | 9 Electronics35 Advertising38 Telecommunications+2 | Registered | 2016 |
| COWATER 0824241 · TMA537765 | Cowater International Inc. | 9 Electronics11 Lighting12 Vehicles+3 | Registered | 2000 |
| CHEATER 2333018 | Milwaukee Electric Tool Corporation | 8 Hand | Pending | 2024 |
| CHATTER 2266725 | Owner not shown | 20 Furniture | Pending | 2023 |
| CUTERO 2095954 · TMA1212960 | Xiamen Qiujia Trading Co.Ltd. | 25 Clothing | Registered | 2023 |
| CHATR 1465623 · TMA811561 · design | Rogers Communications Canada Inc. | 9 Electronics35 Advertising38 Telecommunications | Registered | 2011 |
| CHATR 1452160 · TMA810471 | Rogers Communications Canada Inc. | 9 Electronics35 Advertising38 Telecommunications | Registered | 2011 |
| CUTERA 1196892 · TMA635598 | Cutera, Inc. | 10 Medical | Registered | 2005 |
| Cewiter 2160081 · TMA1210057 | an individual | 20 Furniture | Registered | 2023 |
| CUÉTARA 0707458 · TMA469395 · design | an individual | 30 Coffee | Registered | 1997 |
| Cotrio 2258929 · TMA1277817 | Owner not shown | 25 Clothing | Registered | 2024 |
| CCDR 2242018 · TMA1197304 | Canadian Customer Debt Relief Inc. | 35 Advertising36 Finance41 Education | Registered | 2023 |
| COTERIE 2187679 · TMA1269198 · design | Coterie Brands Inc. | 3 Cosmetics5 Pharmaceuticals9 Electronics+5 | Registered | 2024 |
| CTR 2171694 · TMA1204348 · design | CTR Co.Ltd. | 12 Vehicles | Registered | 2023 |
| CITREA 2108333 · TMA1227781 · design | Citizen Tokei Kabushiki Kaishaalso trading as Citizen Watch Co. Ltd. | 9 Electronics | Registered | 2024 |
| CIDER 2108239 · TMA1181725 · design | Beijing Xide International Network Technology Co.,Ltd. | 14 Jewellery18 Leather25 Clothing+1 | Registered | 2023 |
| Cadoro 2089432 · TMA1234271 | Cadoro Plaster Inc. | 19 Building | Registered | 2024 |