| COMFEES 0694468 · TMA418544 | Associated Hygienic Products LLC (a Delaware Limited Liability Company) | 5 Pharmaceuticals | Registered | 1993 |
| Comfoex 2365353 | Zhuji Shengjia E-commerce Co. Ltd. | 25 Clothing | Pending | 2024 |
| COMFEEZ 1846628 | Shapeez, LLC. | 25 Clothing | Pending | 2017 |
| COMFYKIDS 2030327 · TMA1169552 · design | AF One MFG. Inc. | 20 Furniture | Registered | 2023 |
| ComfyCel 1198592 · TMA623917 | DOMFOAM INC. | 17 Rubber | Registered | 2004 |
| Comfeeze 2236343 | KvG Group Inc. | 25 Clothing | Pending | 2023 |
| CONFISENSE 2146943 · TMA1202964 | LifeScan IP Holdings, LLC | 10 Medical | Registered | 2023 |
| CONFIXX 2215634 · TMA1233962 | an individual | 1 Chemicals | Registered | 2024 |
| CONVÉS 2209934 · TMA1230650 | Owner not shown | 33 Wine | Registered | 2024 |
| Config 2195389 · TMA1284512 | FIGMA, INC. | 41 Education | Registered | 2025 |
| COMPASS 2156252 · TMA1207802 | Stoneage, Inc. | 7 Machines | Registered | 2023 |
| CONFESS!!!! 2059954 · TMA1155232 | an individual | 25 Clothing | Registered | 2022 |
| COMPASS 2046684 · TMA1141373 · design | American Society for Testing and Materials | 41 Education42 Science | Registered | 2022 |
| CONFIG 2026067 · TMA1283838 · design | Config Inc. | 9 Electronics42 Science | Registered | 2025 |
| COMPASS 1900867 · TMA1112795 · design | Boehringer Ingelheim Vetmedica GmbH | 9 Electronics35 Advertising44 Medical | Registered | 2021 |
| COMPASS 1860706 · TMA1081397 · design | The Procter & Gamble Company | 41 Education | Registered | 2020 |
| combiGo 1816410 · TMA1008765 | an individual | 20 Furniture | Registered | 2018 |
| CMBES 1809407 · TMA1001893 | Canadian Medical and Biological Engineering Society | 9 Electronics16 Paper25 Clothing+4 | Registered | 2018 |
| COMPASS 1670856 · TMA982364 | Ag Growth International Inc. | 9 Electronics | Registered | 2017 |
| COMPAS 1532024 · TMA825545 · design | Compas Inc. | 16 Paper35 Advertising42 Science | Registered | 2012 |
| COMPAS 1532023 · TMA825546 · design | Compas Inc. | 9 Electronics16 Paper35 Advertising+1 | Registered | 2012 |
| COMPASS 1476247 · TMA831664 · design | Mewett Property Pty Limited | 11 Lighting19 Building28 Toys | Registered | 2012 |
| COMPASS 1339115 · TMA713567 | an individual | 35 Advertising42 Science | Registered | 2008 |
| COMPASS 1335107 · TMA758553 | MicroVention, Inc. | 10 Medical | Registered | 2010 |
| COMBOS + 1285408 · TMA715443 · design | The Procter & Gamble Company | 3 Cosmetics5 Pharmaceuticals | Registered | 2008 |