| COMPUTEAORTA 1800323 · TMA1055238 | Codeplay Software Limited | 9 Electronics28 Toys42 Science | Registered | 2019 |
| COMPUTERTOTS 0747920 · TMA445201 | ComputerXplorers Limited | 41 Education | Registered | 1995 |
| COMPUTERTOTS 0723290 · TMA430723 | ComputerXplorers Limited | 41 Education | Registered | 1994 |
| COMPUTRON 1980661 · TMA1094757 | an individual | 14 Jewellery | Registered | 2021 |
| COMPUDENT 1618424 · TMA892810 | Compudent Systems Inc. | 9 Electronics10 Medical37 Construction+2 | Registered | 2014 |
| COMPUTECH 1416831 · TMA775002 · design | an individual | 35 Advertising37 Construction | Registered | 2010 |
| COMPUTEACH 0724278 · TMA436242 | LAUNCHLIFE INTERNATIONAL INC. | 41 Education42 Science43 Restaurants | Registered | 1994 |
| COMPUTOT 0706535 · TMA450441 | Owner not shown | 41 Education | Registered | 1995 |
| COMPUTAR 0368152 · TMA201184 | CBC America LLC | 9 Electronics | Registered | 1974 |
| COMPUTESE 2294049 | Computese INC. | 42 Science | Pending | 2023 |
| ComputerWorx 1462460 · TMA786692 | OES Inc. | 9 Electronics11 Lighting | Registered | 2011 |
| COMPUTERLAND 0414412 · TMA237300 | Softchoice Corporation | 9 Electronics16 Paper35 Advertising+2 | Registered | 1979 |
| COMPÉTIVERT 0926960 · design | an individual | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2021 |
| COMPÉTIVERT 0926959 | an individual | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2021 |
| COMPUTERWORLD 1576615 · TMA851315 | INTERNATIONAL DATA GROUP, INC. | 42 Science | Registered | 2013 |
| COMPUTERWORLD 0424946 · TMA235747 | INTERNATIONAL DATA GROUP, INC. (ALSO TRADING AS INTERNATIONAL DATA GROUP AND AS IDG), A MASSACHUSETTS CORPORATION | 16 Paper | Registered | 1979 |
| COMPUTERWORLD 2155126 | INTERNATIONAL DATA GROUP, INC. | 35 Advertising38 Telecommunications42 Science | Pending | 2021 |
| CompTrak 1709114 · TMA941612 | CompTrak Inc. | 9 Electronics35 Advertising36 Finance+1 | Registered | 2016 |
| COMPUTRACE 1615936 · TMA876512 | ABSOLUTE SOFTWARE CORPORATION | 9 Electronics16 Paper45 Legal | Registered | 2014 |
| COMPUTING 1349445 · TMA769534 · design | PLATHOME KABUSHIKI KAISHA (also trading as PLAT'HOME CO., LTD.) | 9 Electronics | Registered | 2010 |
| COMBITEST 1298475 · TMA682875 | Ovo Fertility Inc. | 44 Medical | Registered | 2007 |
| COMPUTYPE 0766700 · TMA446090 · design | COMPUTYPE, INC. | 16 Paper24 Textiles | Registered | 1995 |
| COMPUTRACE 0760917 · TMA479016 | ABSOLUTE SOFTWARE CORPORATION | 9 Electronics42 Science | Registered | 1997 |
| COMPET 0305877 · TMA156866 | an individual | 9 Electronics | Registered | 1968 |
| COMPUTOOLS 2259760 · design | an individual | 9 Electronics42 Science | Pending | 2022 |