| CATALYTIC 1865961 · TMA1085587 | Catalytic, Inc. | 9 Electronics42 Science | Registered | 2020 |
| CATALYTIC 2324542 | Owner not listed | 3 Cosmetics5 Pharmaceuticals | Pending | 2024 |
| CUTWELDER 2215226 · TMA1271212 | Lincoln Global, Inc. | 7 Machines8 Hand9 Electronics | Registered | 2024 |
| Cuddletex 2149279 · TMA1204254 | an individual | 24 Textiles | Registered | 2023 |
| Cathyladi 2072126 · TMA1160395 | Xiamen Leimaier Trading Co. Ltd. | 9 Electronics14 Jewellery21 Housewares | Registered | 2023 |
| CITYLITICS 2069607 · TMA1278563 | WatrHub Inc. | 35 Advertising | Registered | 2024 |
| CATHLETE 1568038 · TMA878840 | JenaValve Technology Inc. | 5 Pharmaceuticals10 Medical44 Medical | Registered | 2014 |
| CADILITE 1549956 · TMA853645 | Thomas & Betts International, Inc. | 9 Electronics11 Lighting | Registered | 2013 |
| CITILED 1430078 · TMA844895 · design | Citizen Tokei Kabushiki Kaisha also trading as Citizen Watch Co. Ltd. | 9 Electronics11 Lighting | Registered | 2013 |
| CUDDLEDRY 1375211 · TMA850775 · design | Cuddledry Limited | 24 Textiles25 Clothing27 Carpets+1 | Registered | 2013 |
| CITILED 1371774 · TMA785823 · design | Citizen Electronics Co. Ltd. | 9 Electronics11 Lighting | Registered | 2010 |
| CHEDLET 0991533 · NFLD1533 | UNIGATE FOODS LIMITED | 29 Meat | Registered | 1927 |
| CITYLITE 0853735 · TMA530110 | INTELPROP AUTHORITY INC. | 9 Electronics | Registered | 2000 |
| CATALITE 0684117 · TMA406941 | Industrial Technologies & Services Americas Inc. | 11 Lighting | Registered | 1993 |
| CATHILD 0563887 · TMA331945 · design | an individual | 11 Lighting | Registered | 1987 |
| CADWELD 0418998 · TMA238432 | ERICO INTERNATIONAL CORPORATION | 6 Metal9 Electronics | Registered | 1979 |
| "COTLETS" 0199004 · UCA28909 | LIBERTY ORCHARDS COMPANY, INC. (A WASHINGTON CORPORATION) | 30 Coffee | Registered | 1948 |
| "CADWELD" 0185717 · UCA22516 | ERICO INTERNATIONAL CORPORATION | 1 Chemicals7 Machines9 Electronics | Registered | 1944 |
| COTILED 2362788 | SHENZHEN XINRUISI TRADING CO. LTD | 27 Carpets | Pending | 2024 |
| CUDDLETOT 2343081 | Owner not listed | 20 Furniture28 Toys | Pending | 2024 |
| CataLite 2331306 | an individual | 1 Chemicals7 Machines11 Lighting | Pending | 2024 |
| CATWYLDA 2261330 | Autolus Limited | 5 Pharmaceuticals | Pending | 2023 |
| Codehealth 2213439 | an individual | 9 Electronics42 Science | Pending | 2022 |
| CATALATE 2141892 | Catalate Commerce, Inc. | 42 Science | Pending | 2021 |