| CLOUDLITE 0671002 · TMA398740 | T.T. Group Limited | 25 Clothing | Registered | 1992 |
| CLOUDLINE 1694748 · TMA1003348 | Hewlett Packard Enterprise Development LP | 9 Electronics | Registered | 2018 |
| CLOUDLINE 1566676 · TMA855129 | Domaine Drouhin Oregon, Inc. | 33 Wine | Registered | 2013 |
| CloudLocate 2145020 · TMA1204064 | Owner not shown | 9 Electronics38 Telecommunications42 Science | Registered | 2023 |
| CLOUDHALER 1904266 · TMA1096759 | an individual | 5 Pharmaceuticals | Registered | 2021 |
| CLOUDLINK 1840130 · TMA1081809 | Uptake Technologies, Inc. | 42 Science | Registered | 2020 |
| CLOUDHALER 1745053 · TMA1038793 | an individual | 10 Medical44 Medical | Registered | 2019 |
| CloudLink 1590487 · TMA867130 | Dell Inc. | 9 Electronics | Registered | 2013 |
| CloudLinx 1558365 · TMA942233 | Cloudlinx Hosted Services Inc. | 42 Science | Registered | 2016 |
| CloudTilt 2245974 | Owner not listed | 25 Clothing | Pending | 2023 |
| CLOUDLI 2060581 · design | Cloudli Communications Corp. | 9 Electronics38 Telecommunications | Pending | 2020 |
| CLOUDLI 2047195 | Cloudli Communications Corp. | 9 Electronics38 Telecommunications | Pending | 2020 |
| Cloudultra 2053671 · TMA1137631 | On Clouds GmbH | 25 Clothing28 Toys42 Science | Registered | 2022 |
| CHILDLIFE 1736936 · TMA996684 | an individual | 5 Pharmaceuticals | Registered | 2018 |
| CloudLogix 1507814 · TMA814873 | Hostway Corporation | 42 Science | Registered | 2012 |
| COLDELITE 0285754 · TMA141103 | Owner not shown | 7 Machines | Registered | 1965 |
| Cloudleap 2332468 | On Clouds GmbH | 25 Clothing | Pending | 2024 |
| Cloudalpine 2281218 | On Clouds GmbH | 25 Clothing | Pending | 2023 |
| CLOUDOLE 2217879 | Weston Distance Learning, Inc. | 42 Science | Pending | 2022 |
| Cladletun 2240694 · TMA1260074 | Shenzhen Yunsi Electronic Commerce Co. Ltd. | 21 Housewares | Registered | 2024 |
| CLOTILD 1922545 · TMA1222669 | Owner not shown | 5 Pharmaceuticals9 Electronics10 Medical+2 | Registered | 2024 |
| CLOUDHEALTH 1867156 · TMA1084696 | VMware LLC | 9 Electronics42 Science | Registered | 2020 |
| CALDWELL 1858749 · TMA1071685 · design | THE CALDWELL PARTNERS INTERNATIONAL INC. | 35 Advertising42 Science | Registered | 2020 |
| CALDWELL 1793704 · TMA992645 · design | ASSA ABLOY Fenestration, LLC | 6 Metal7 Machines9 Electronics+2 | Registered | 2018 |
| CLOUDIOLOGY 1791440 · TMA1035458 | Sivantos Pte. Ltd. | 9 Electronics10 Medical37 Construction+2 | Registered | 2019 |