| Creationspace 2262840 · TMA1284737 | Suzhou Creation Space Intelligent Technology Co, Ltd | 7 Machines | Registered | 2025 |
| CurATime 2215597 · TMA1233956 | TRON - Translationale Onkologie an der Universitätsmedizin der Johannes Gutenberg- Universität Mainz gemeinnützige GmbH | 42 Science44 Medical | Registered | 2024 |
| CREDENTIALS 2192954 · TMA1218729 · design | The Upper Deck Company | 9 Electronics16 Paper | Registered | 2024 |
| Carattime 2179733 · TMA1228984 | an individual | 9 Electronics | Registered | 2024 |
| Cordinate 2146667 · TMA1183231 | Jasco Products Company LLC | 9 Electronics | Registered | 2023 |
| CORTINA 2128201 · TMA1172870 | Keter Home and Garden Products Ltd. | 20 Furniture | Registered | 2023 |
| CREDENTIALS 2114768 · TMA1160567 | The Upper Deck Company | 9 Electronics16 Paper | Registered | 2023 |
| CRODINO 2109976 · TMA1201367 · design | Owner not shown | 32 Beer | Registered | 2023 |
| CARTINTS 2104498 · TMA1175881 | Guangzhou Liuliuliu Internet Technology Co.Ltd. | 8 Hand21 Housewares | Registered | 2023 |
| CurtainSmith 2093937 · TMA1172477 | FULRICH Home Textile (Canada) Company | 24 Textiles | Registered | 2023 |
| CROETON 2088329 · TMA1170174 | Shenzhen Kewodun Trading Co. Ltd. | 10 Medical | Registered | 2023 |
| CORTINA 2080474 · TMA1141472 | Keter Home and Garden Products Ltd. | 19 Building | Registered | 2022 |
| CARDIONICA 2050629 · TMA1179995 | an individual | 10 Medical | Registered | 2023 |
| CRouton 2048934 · TMA1203724 | McMullen Professional Corporation | 45 Legal | Registered | 2023 |
| CARTNET 2046093 · TMA1272210 | Cartnet Inc. | 9 Electronics42 Science | Registered | 2024 |
| Certn 2045226 · TMA1150415 | Certn Holdings Inc. | 35 Advertising36 Finance42 Science | Registered | 2022 |
| CERTIUM 2034755 · TMA1163247 | ROHDE & SCHWARZ GMBH & CO. KG | 9 Electronics35 Advertising38 Telecommunications+3 | Registered | 2023 |
| CAREtain 1998123 · TMA1133901 | Evonik Operations GmbH | 9 Electronics16 Paper35 Advertising+3 | Registered | 2022 |
| CARDINAL 1994292 · TMA1255841 · design | CASHMERE OUTFITTERS INC. | 25 Clothing | Registered | 2024 |
| Creaton 1982477 · TMA1123119 | Neksportek Corp. | 5 Pharmaceuticals | Registered | 2022 |
| CURADEN 1958586 · TMA1271793 | an individual | 3 Cosmetics5 Pharmaceuticals10 Medical+4 | Registered | 2024 |
| CREDENTIALMED 1946889 · TMA1172981 | CredentialMed, LLC | 35 Advertising45 Legal | Registered | 2023 |
| CORDONEL 1943059 · TMA1149658 | Sensus Spectrum LLC | 9 Electronics | Registered | 2022 |
| CERTNEXUS 1924960 · TMA1110890 · design | Logical Operations, Inc. | 41 Education | Registered | 2021 |
| CORTEN 1914151 · TMA1127676 | Corten Management UK Limited | 35 Advertising36 Finance | Registered | 2022 |