| COLDTUB 1487874 · TMA815917 · design | Spa Logic Inc. | 9 Electronics11 Lighting | Registered | 2012 |
| COLDFX 1239084 · TMA655100 | Bausch + Lomb Corporation | 5 Pharmaceuticals | Registered | 2005 |
| COLDWAVE 1966073 · TMA1237862 | GAMMA SALES INC. | 9 Electronics12 Vehicles18 Leather+1 | Registered | 2024 |
| COLDBOX 1434036 · TMA768042 | Coldbox Builders Inc. | 37 Construction42 Science | Registered | 2010 |
| COLDBREAK 1904211 · TMA1110348 | Cold Break Brewing, LLC | 6 Metal11 Lighting20 Furniture+1 | Registered | 2021 |
| COLDBLACK 1406163 · TMA829136 | an individual | 1 Chemicals2 Paints9 Electronics+4 | Registered | 2012 |
| COLDBREAK 2181570 · design | Cold Break Brewing, LLC | 11 Lighting | Pending | 2022 |
| Cloudprime 2186451 · TMA1272593 | On Clouds GmbH | 25 Clothing28 Toys42 Science | Registered | 2024 |
| CLOUDBADGING 2180697 · TMA1256331 · design | Barcodes, LLC | 42 Science | Registered | 2024 |
| CLOUDBADGING 2179379 · TMA1256316 | Barcodes, LLC | 42 Science | Registered | 2024 |
| CULTIVMI 2160253 · TMA1187899 | an individual | 5 Pharmaceuticals9 Electronics16 Paper+4 | Registered | 2023 |
| Cloudfarms 2159813 · TMA1228886 | an individual | 9 Electronics35 Advertising38 Telecommunications+3 | Registered | 2024 |
| Cloudful 2155905 · TMA1192167 | SINGAPORE FULL SCALE FULL SPEED PTE.LTD. | 24 Textiles25 Clothing35 Advertising | Registered | 2023 |
| Cloudvista 2154439 · TMA1272452 | On Clouds GmbH | 25 Clothing28 Toys42 Science | Registered | 2024 |
| CLOUDVISORY 2080495 · TMA1141998 | FireEye, Inc. | 9 Electronics42 Science | Registered | 2022 |
| CALTOP 2076338 · TMA1178805 | Air Liquide Canada Inc. | 6 Metal | Registered | 2023 |
| COLDFRESH 2051686 · TMA1168033 | The Procter & Gamble Company | 3 Cosmetics | Registered | 2023 |
| CULTIVATE 2044244 · TMA1123953 | Perceptyx, Inc. | 42 Science | Registered | 2022 |
| Cultivo 2042436 · TMA1164478 | Mucci International Marketing Inc. | 31 Fresh | Registered | 2023 |
| CULTIVATED 2042376 · TMA1144711 | an individual | 16 Paper21 Housewares24 Textiles+1 | Registered | 2022 |
| CLOUDFIT 2018374 · TMA1131674 | Cloudfit Software, LLC | 9 Electronics42 Science | Registered | 2022 |
| CLOUDBOOK 2000645 · TMA1144319 | HOLDHAM | 16 Paper | Registered | 2022 |
| CloudBuyer 1990092 · TMA1124951 | an individual | 17 Rubber | Registered | 2022 |
| CLOUDFALL 1960840 · TMA1135244 | SUTTER HOME WINERY, INC. | 33 Wine | Registered | 2022 |
| CloudValley 1947888 · TMA1192280 | Shenzhen Cloudvalley Maker Technology Co. Ltd. | 9 Electronics17 Rubber21 Housewares | Registered | 2023 |