| CONDUCTOR 1960364 · TMA1229760 · design | Conductor LLC | 42 Science | Registered | 2024 |
| CONDUCTOR 1880670 · TMA1094437 | ELI LILLY AND COMPANY | 9 Electronics44 Medical | Registered | 2021 |
| CONDUCTOR 1479966 · TMA790206 | Conductor LLC | 42 Science | Registered | 2011 |
| CONDUCTOR 2268336 | Sensei Labs Inc. | 9 Electronics42 Science | Pending | 2023 |
| CONDUCTOR 2037183 · design | KING CAR FOOD INDUSTRIAL CO. LTD. | 33 Wine | Pending | 2020 |
| CONDUCTROL 1151080 · TMA660923 | Sterling Chemicals International, Inc. | 22 Ropes | Registered | 2006 |
| CONDUCT 1806515 · TMA1027394 · design | Giant Manufacturing Co. Ltd. | 12 Vehicles | Registered | 2019 |
| CONDUCTIX 1254660 · TMA674123 | an individual | 6 Metal7 Machines9 Electronics | Registered | 2006 |
| CONDUCTEX 0395823 · TMA224853 | BIRLA CARBON U.S.A. INC. | 1 Chemicals | Registered | 1977 |
| CONDUCTILE 0521809 · TMA300671 | VPI, LLC, a Wisconsin limited liability company | 27 Carpets | Registered | 1985 |
| CONDECO 1808376 · TMA1039142 | CONDECO GROUP LIMITED | 9 Electronics16 Paper41 Education+2 | Registered | 2019 |
| CONDICO 1774231 · TMA964764 | an individual | 35 Advertising45 Legal | Registered | 2017 |
| CONTACTOR 1509467 · TMA824055 | Advanced Drainage Systems, Inc. | 6 Metal19 Building | Registered | 2012 |
| Condustar 1334594 · TMA753999 | ConduStar Corp. | 35 Advertising36 Finance37 Construction+1 | Registered | 2009 |
| CONTACTO 2166939 | Plivo Inc | 9 Electronics38 Telecommunications42 Science | Pending | 2021 |
| CONTACTNOW 1829178 · TMA1063427 | 8x8, Inc. | 9 Electronics37 Construction38 Telecommunications+1 | Registered | 2019 |
| CONDUCRETE 0877266 · TMA514346 · design | SHORE ACRES ENTERPRISES INC. | 1 Chemicals9 Electronics42 Science | Registered | 1999 |
| CONDUCRETE 2036954 | SHORE ACRES ENTERPRISES INC. | 1 Chemicals37 Construction42 Science | Pending | 2020 |
| ContactPoint 1484951 · TMA840062 | CERIC | 35 Advertising38 Telecommunications41 Education | Registered | 2013 |
| CONTUCCI 2153154 · TMA1254823 | Owner not shown | 33 Wine | Registered | 2024 |
| ComedyCon 1976754 · TMA1250399 | GESTION JUSTE POUR RIRE INC. | 9 Electronics14 Jewellery16 Paper+11 | Registered | 2024 |
| CONTACT 1954991 · TMA1234135 | PLAY'N GO MARKS LIMITED | 9 Electronics28 Toys41 Education | Registered | 2024 |
| Contact 1803080 · TMA989810 | NORAC CONCEPTS, INC. | 1 Chemicals | Registered | 2018 |
| CONATOS 1782774 · TMA1021157 · design | an individual | 14 Jewellery18 Leather | Registered | 2019 |
| CONTACT 1710107 · TMA981556 | This is Blueprint Management Ltd. | 9 Electronics16 Paper25 Clothing+2 | Registered | 2017 |