| Comfelie 2178787 · TMA1228961 | Shenzhen Xihe E-Commerce Co. Ltd. | 25 Clothing | Registered | 2024 |
| COMFLO 1906118 · TMA1088894 | COMFLO INC. | 9 Electronics36 Finance42 Science+1 | Registered | 2020 |
| COMPLIT 1808891 · TMA1015189 · design | an individual | 25 Clothing26 Sewing | Registered | 2019 |
| COMPOOL 1140480 · TMA600965 | Pentair Water Pool & Spa, Inc. (a Delaware Corporation) | 9 Electronics | Registered | 2004 |
| Comfalo 2300120 | an individual | 20 Furniture | Pending | 2023 |
| COMPLEO 2253148 | Owner not listed | 9 Electronics | Pending | 2023 |
| COMPLiQ 2248119 | Collaborative Digital Innovations LLC (Florida Limited Liability Company) | 9 Electronics35 Advertising42 Science+1 | Pending | 2023 |
| COMPLYLOOP 2228612 | an individual | 9 Electronics42 Science | Pending | 2022 |
| COMBFFLE 2257455 · TMA1276340 | KI HING TRADING COMPANY LIMITED | 21 Housewares | Registered | 2024 |
| COMPALOX 2180611 · TMA1253710 | Martinswerk GmbH | 1 Chemicals | Registered | 2024 |
| COMPLEOS 2164158 · TMA1198140 | CP KELCO U.S., INC. | 1 Chemicals | Registered | 2023 |
| COMPLOTS 2141027 · TMA1205111 | an individual | 25 Clothing | Registered | 2023 |
| COINFLIP 2110129 · TMA1192636 · design | GPD Holdings, LLC | 9 Electronics36 Finance | Registered | 2023 |
| COINFLIP 2110123 · TMA1193442 | GPD Holdings, LLC | 9 Electronics36 Finance | Registered | 2023 |
| CANFOLIA 2055803 · TMA1283945 | Canfolia Consulting Inc. | 35 Advertising45 Legal | Registered | 2025 |
| COMPLY 1992886 · TMA1252000 | 3M Company | 9 Electronics | Registered | 2024 |
| CAMBALIO 1976236 · TMA1149997 | an individual | 5 Pharmaceuticals | Registered | 2022 |
| COMPLAN 1973214 · TMA1267720 | Complan Foods Limited | 5 Pharmaceuticals | Registered | 2024 |
| COMFLEX 1949455 · TMA1131961 | an individual | 36 Finance | Registered | 2022 |
| COMFILAX 1919059 · TMA1109117 · design | CellChem Pharmaceuticals Inc. | 5 Pharmaceuticals | Registered | 2021 |
| CAMPILLO 1912799 · TMA1103635 · design | an individual | 33 Wine | Registered | 2021 |
| COMPLEX 1876248 · TMA1117323 | Commerce Media Holdings, LLC | 35 Advertising38 Telecommunications41 Education+1 | Registered | 2022 |
| COMFILIFE 1867345 · TMA1074018 · design | VOZZIER, LLC, a California limited liability company | 10 Medical20 Furniture24 Textiles+1 | Registered | 2020 |
| COMFILIFE 1867344 · TMA1103585 | VOZZIER, LLC, a California limited liability company | 10 Medical20 Furniture24 Textiles+1 | Registered | 2021 |
| CompLoc 1767513 · TMA1043444 | an individual | 6 Metal17 Rubber19 Building | Registered | 2019 |