| COMPUTRONIX 0799956 · TMA467501 | COMPUTRONIX (CANADA) LTD. | 42 Science | Registered | 1996 |
| Compton 1403972 · TMA749658 | an individual | 29 Meat | Registered | 2009 |
| COMPUTOT 0706535 · TMA450441 | Owner not shown | 41 Education | Registered | 1995 |
| COMPUTOX 0900309 | Owner not shown | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1984 |
| COMPUTRITION 0803882 · TMA476853 | COMPUTRITION, INC. | 9 Electronics | Registered | 1997 |
| COMPUTRACE 1615936 · TMA876512 | ABSOLUTE SOFTWARE CORPORATION | 9 Electronics16 Paper45 Legal | Registered | 2014 |
| COMPUTERTV 1429635 · TMA788387 · design | PCM Sales, Inc. | 9 Electronics35 Advertising38 Telecommunications+1 | Registered | 2011 |
| COMPUTRACE 0760917 · TMA479016 | ABSOLUTE SOFTWARE CORPORATION | 9 Electronics42 Science | Registered | 1997 |
| COMPUTOOLS 2259760 · design | an individual | 9 Electronics42 Science | Pending | 2022 |
| CompTrak 1709114 · TMA941612 | CompTrak Inc. | 9 Electronics35 Advertising36 Finance+1 | Registered | 2016 |
| ComputerWorx 1462460 · TMA786692 | OES Inc. | 9 Electronics11 Lighting | Registered | 2011 |
| COMPUTECH 1416831 · TMA775002 · design | an individual | 35 Advertising37 Construction | Registered | 2010 |
| COMPUTING 1349445 · TMA769534 · design | PLATHOME KABUSHIKI KAISHA (also trading as PLAT'HOME CO., LTD.) | 9 Electronics | Registered | 2010 |
| COMBITROL 1119408 · TMA620640 | Roche Diagnostics GmbH | 1 Chemicals37 Construction | Registered | 2004 |
| COMPUTYPE 0766700 · TMA446090 · design | COMPUTYPE, INC. | 16 Paper24 Textiles | Registered | 1995 |
| COMPUTERTOTS 0747920 · TMA445201 | ComputerXplorers Limited | 41 Education | Registered | 1995 |
| COMPUTERTOTS 0723290 · TMA430723 | ComputerXplorers Limited | 41 Education | Registered | 1994 |
| COMPUTERLAND 0414412 · TMA237300 | Softchoice Corporation | 9 Electronics16 Paper35 Advertising+2 | Registered | 1979 |
| COMPUTAR 0368152 · TMA201184 | CBC America LLC | 9 Electronics | Registered | 1974 |
| COMPITOX 0270739 · TMA130437 | NUFARM UK LIMITED | 5 Pharmaceuticals | Registered | 1963 |
| COMPUTESE 2294049 | Computese INC. | 42 Science | Pending | 2023 |
| COMPETITION 1403301 · TMA757179 | an individual | 31 Fresh | Registered | 2010 |
| COMPETITION 0469684 · TMA285505 | an individual | 9 Electronics | Registered | 1983 |
| COMPETITION 0390648 · TMA216197 | FGL Sports Ltd. | 25 Clothing | Registered | 1976 |
| COMPUTERWORLD 1576615 · TMA851315 | INTERNATIONAL DATA GROUP, INC. | 42 Science | Registered | 2013 |