| COLOGIX 1498333 · TMA833500 | COLOGIX HOLDINGS, INC | 35 Advertising38 Telecommunications42 Science | Registered | 2012 |
| CYOLOGIST 1783119 · TMA991235 | CYOLOGY LABS INC. | 35 Advertising38 Telecommunications41 Education+1 | Registered | 2018 |
| CALOSEC 2290508 | an individual | 11 Lighting | Pending | 2023 |
| Collechic 2263078 · TMA1281451 | an individual | 25 Clothing | Registered | 2025 |
| ÇOLAKOGLU 1788950 · TMA1013131 · design | an individual | 6 Metal | Registered | 2019 |
| COLOSSUS 2238953 · TMA1258346 · design | Owner not listed | 9 Electronics | Registered | 2024 |
| CLOZOZ 2233957 · TMA1262865 · design | Shenzhen yangzhisen Trading Co.,Ltd | 25 Clothing | Registered | 2024 |
| CLICKHOUSE 2223250 · TMA1249924 · design | an individual | 19 Building37 Construction | Registered | 2024 |
| CHILIOCOSM 2208022 · TMA1241574 | an individual | 41 Education | Registered | 2024 |
| CELSIUS 2207715 · TMA1245188 | Toyo Tire Corporation, a legal entity | 12 Vehicles | Registered | 2024 |
| Classixblue 2192306 · TMA1233894 | Creative Classixblue Bags Ltd | 18 Leather | Registered | 2024 |
| 40Celsius 2178324 · TMA1190054 | CBINNOV INC | 19 Building20 Furniture22 Ropes+1 | Registered | 2023 |
| CLASSIC 2129521 · TMA1174031 | SWANSON GROUP INC. | 19 Building | Registered | 2023 |
| coolcustomize 2107678 · TMA1180531 | Putian Xufa Import & Export Trade Co.Ltd | 25 Clothing | Registered | 2023 |
| CLASICO 2089007 · TMA1182684 · design | Nantong Tianyuan Toys & Gifts Co. Ltd. | 24 Textiles28 Toys | Registered | 2023 |
| CLAWSOCKS 2074639 · TMA1209489 | MGC IP HOLDINGS LLC | 9 Electronics | Registered | 2023 |
| CLICKIEZ 2053741 · TMA1215903 | ZEAL GENERATION INC. | 9 Electronics | Registered | 2023 |
| Colossus 2032520 · TMA1115937 | LIDL STIFTUNG & CO. KG | 32 Beer | Registered | 2021 |
| CELSIUS 2026097 · TMA1269418 · design | Shenzhen Verdewell Technology Limited | 9 Electronics34 Tobacco | Registered | 2024 |
| ClickHouse 2007663 · TMA1211575 | ClickHouse, Inc. | 35 Advertising38 Telecommunications39 Transport+2 | Registered | 2023 |
| Calashock 1989065 · TMA1126137 | Calashock Ltd | 42 Science | Registered | 2022 |
| COOLCHECKER 1950901 · TMA1167316 | Premier Clothing Limited | 25 Clothing | Registered | 2023 |
| CLASSICFLAME 1941101 · TMA1102780 | Twin-Star International, Inc. | 11 Lighting | Registered | 2021 |
| CLASSICFLAME 1924222 · TMA1100987 · design | Twin-Star International, Inc. | 11 Lighting | Registered | 2021 |
| CLASSEQ 1919256 · TMA1106926 · design | Winterhalter Gastronom GmbH | 3 Cosmetics7 Machines9 Electronics+1 | Registered | 2021 |