| CLEARWELL 1690375 · TMA990182 | ClearWELL Oilfield Solutions Limited | 9 Electronics | Registered | 2018 |
| CLEARWELL 1276583 · TMA727064 | Veritas Technologies LLC | 9 Electronics | Registered | 2008 |
| CLERAL 1898066 · TMA1118232 | CLERAL INC. | 9 Electronics12 Vehicles37 Construction+1 | Registered | 2022 |
| CLARYL 1371541 · TMA782186 | an individual | 2 Paints20 Furniture21 Housewares | Registered | 2010 |
| CLARYL 0512700 · TMA294574 | an individual | 17 Rubber | Registered | 1984 |
| CLARYL 0509314 · TMA291287 | an individual | 17 Rubber | Registered | 1984 |
| CLEARALIF 2225951 · TMA1250215 | GUANGZHOU GEWU MEDIA CO., LTD. | 3 Cosmetics | Registered | 2024 |
| ClerLunge 2167664 · TMA1220558 | Clermark Equestrian Inc | 18 Leather | Registered | 2024 |
| COLOURLOCK 2161249 · TMA1241094 · design | Lederzentrum GmbH | 1 Chemicals2 Paints3 Cosmetics | Registered | 2024 |
| COLORLOMO 2146877 · TMA1204084 | Colorlomo(Shanghai) International Trade Co. Ltd | 3 Cosmetics | Registered | 2023 |
| COLOURLAM 2104929 · TMA1159405 · design | ADVANIDE HOLDINGS PTE. LTD. | 9 Electronics | Registered | 2023 |
| CLEARLINK 2093475 · TMA1172457 | Culligan International Company | 9 Electronics | Registered | 2023 |
| CLEERLY 2061902 · TMA1201175 | Cleerly, Inc. | 9 Electronics42 Science44 Medical | Registered | 2023 |
| COLORLUX 2044581 · TMA1165539 | Amerlux, LLC | 11 Lighting | Registered | 2023 |
| COLORLUXE 1974571 · TMA1138166 | Alcon Inc. a legal entity | 9 Electronics | Registered | 2022 |
| COLERLINE 1947586 · TMA1126001 | Anji Wanbao Furniture Co. Ltd. | 20 Furniture | Registered | 2022 |
| COLORLINK 1870788 · TMA1065073 | Moroccanoil Israel Ltd. | 1 Chemicals3 Cosmetics | Registered | 2019 |
| CLEARLIGHT 1864749 · TMA1096554 | Sauna Works Inc. AKA Far Infrared Sauna Technology Co. | 11 Lighting35 Advertising | Registered | 2021 |
| CLEARLY 1842893 · TMA1099009 | CC US Intermediate Holdings LLC | 32 Beer | Registered | 2021 |
| COOLRAIL 1839228 · TMA1022948 | AtriCure, Inc. | 10 Medical | Registered | 2019 |
| CLARILAX 1829455 · TMA1019580 | FINCHLEY RESEARCH & DEVELOPMENT INC. | 5 Pharmaceuticals | Registered | 2019 |
| CLEARLY 1809825 · TMA1099010 · design | CC US Intermediate Holdings LLC | 32 Beer | Registered | 2021 |
| COLORLOCK 1791346 · TMA1021716 | EasyTrim Reveals Inc. | 36 Finance | Registered | 2019 |
| CLEARLY 1782856 · TMA1005166 | EssilorLuxottica Canada Inc. | 2 Paints3 Cosmetics5 Pharmaceuticals+10 | Registered | 2018 |
| COLORLOK 1711594 · TMA987059 | Finale Post Production Inc. | 41 Education42 Science | Registered | 2017 |