| Cloudcraft 2055150 · TMA1129345 | Cloudcraft Inc | 42 Science | Registered | 2022 |
| CLOUDSCAPE 2240171 · TMA1257003 | Amazon Technologies, Inc. | 42 Science | Registered | 2024 |
| CLOUDCREW 2043228 · TMA1154018 | an individual | 35 Advertising42 Science | Registered | 2022 |
| CloudGram 2023897 · TMA1188087 | CloudGram Corporation | 9 Electronics35 Advertising38 Telecommunications+3 | Registered | 2023 |
| CLOUDCAST 1755231 · TMA983102 | KNOWCK CO. LTD. | 9 Electronics | Registered | 2017 |
| CLOUDCAP 1669945 · TMA916326 | Precept Brands LLC | 33 Wine | Registered | 2015 |
| CLOUDCAMP 1431094 · TMA774788 | ENOMALY INC. | 9 Electronics16 Paper25 Clothing+1 | Registered | 2010 |
| CloudStage 2277127 | GPU Audio Inc. | 42 Science | Pending | 2023 |
| cloudeaz 2224649 | Korvaed Inc. | 42 Science | Pending | 2022 |
| CLOUDCOACH 2060266 | FOX 40 INTERNATIONAL INC. | 42 Science | Pending | 2020 |
| CLOUDCORNER 1695883 · TMA979381 · design | Cloud Service Limited | 9 Electronics39 Transport42 Science | Registered | 2017 |
| CLOUDSTRATA 2237993 | Washgesh Holdings Inc. | 42 Science | Pending | 2023 |
| Cloudeasy 2188015 · TMA1272599 | On Clouds GmbH | 25 Clothing28 Toys42 Science | Registered | 2024 |
| CloudCX 2143650 · TMA1263495 | CYBERCX PTY LTD | 42 Science | Registered | 2024 |
| CLOUDCO 2043382 · TMA1270842 | CLOUDCO BRANDS INC. | 34 Tobacco35 Advertising | Registered | 2024 |
| CLOUDSCENE 2017244 · TMA1210423 | Cloudscene (Services) Pty Limited | 35 Advertising38 Telecommunications42 Science | Registered | 2023 |
| CLOUDCC 1871268 · TMA1063079 · design | Beijing CloudCC.com Technology Co. Ltd. | 42 Science | Registered | 2019 |
| CloudStyle 1870254 · TMA1084535 | Zhejiang Yunduan Era of Technology CO. LTD. | 20 Furniture24 Textiles25 Clothing+2 | Registered | 2020 |
| CLOUDASH 1831532 · TMA1075718 | IDIGITAL INTERNET INC. | 9 Electronics42 Science | Registered | 2020 |
| CLOUDQA 1830901 · TMA1067297 | Real Time Medical Inc. | 42 Science | Registered | 2019 |
| CLOUDCOVER 1759285 · TMA1047381 | CloudCover Ltd. | 9 Electronics16 Paper35 Advertising+4 | Registered | 2019 |
| CLOUDSLANG 1739070 · TMA967777 | EntIT Software LLC | 9 Electronics | Registered | 2017 |
| CLOUDSPRAY 1688757 · TMA978680 | BitSpray Holding Corporation | 42 Science | Registered | 2017 |
| CLOUDHAWK 1673401 · TMA960119 | DBJay Ltd. | 9 Electronics35 Advertising42 Science | Registered | 2017 |
| CLÖUDZ 1569478 · TMA857762 | Sourcing Network International, LLC | 6 Metal9 Electronics10 Medical+8 | Registered | 2013 |