| CONSOLE 1770078 · TMA1084497 | PCCW-HKT DataCom Services Limited | 38 Telecommunications42 Science | Registered | 2020 |
| CONSULTEM 0771386 · TMA454753 | CONSULTEM SERVICES CONSEILS INC. | 35 Advertising38 Telecommunications42 Science | Registered | 1996 |
| CONSULTAXE 0400490 · TMA223405 · design | CONSULTAXE LTÉE | 35 Advertising36 Finance | Registered | 1977 |
| CONSULTAXE 2242355 · design | CONSULTAXE LTÉE | 35 Advertising36 Finance | Pending | 2023 |
| CONSOLIDATED 1772908 · TMA978863 | Viking Drill & Tool, Inc. | 7 Machines | Registered | 2017 |
| CONSULTA 1306144 · TMA771747 | MEDTRONIC, INC. | 9 Electronics10 Medical | Registered | 2010 |
| CONSOLAS 1211540 · TMA685935 | Microsoft Corporation | 9 Electronics | Registered | 2007 |
| CONSULT 0878002 · TMA531055 | NISSAN JIDOSHA KABUSHIKI KAISHA (also trading as NISSAN MOTOR CO. LTD.) | 9 Electronics | Registered | 2000 |
| CONSOLS 0414296 · TMA235630 | JTI-Macdonald TM Corp. | 34 Tobacco | Registered | 1979 |
| CONSOLIDATED 0243255 · TMA111280 | Dresser, LLC | 6 Metal7 Machines12 Vehicles+5 | Registered | 1958 |
| CONSOLS 0030190 · TMDA5949 | JTI-Macdonald TM Corp. | 34 Tobacco | Registered | 1897 |
| CONSALT 2262128 | Owner not shown | 36 Finance | Pending | 2023 |
| CONSULT 2175165 | Gilwell Technology Services, LLC | 35 Advertising41 Education | Pending | 2022 |
| CONSULT+ 2031949 | The Canada Life Assurance Company | 44 Medical | Pending | 2020 |
| CONSOLIDECK 1870099 · TMA1103256 | Boyer, LLC | 1 Chemicals | Registered | 2021 |
| CONSOLID-8 0736329 · TMA431632 | CONSOLIDATED METAL PRODUCTS, INC. AN OHIO CORPORATION | 6 Metal7 Machines12 Vehicles | Registered | 1994 |
| ConsoleAlert 1976244 | SUSTEMA INC. | 9 Electronics | Pending | 2019 |
| CONSUL 2187508 · TMA1232574 | an individual | 31 Fresh | Registered | 2024 |
| CANSULTA 2083378 · TMA1284183 · design | AKP Solutions Inc. | 35 Advertising | Registered | 2025 |
| CANSULTA 2083377 · TMA1284182 | AKP Solutions Inc. | 35 Advertising | Registered | 2025 |
| CONSUL 1914475 · TMA1098942 | HashiCorp, Inc. | 9 Electronics42 Science | Registered | 2021 |
| CANSOLO 1809225 · TMA994141 · design | Huahai Hengyu (Shenzhen) Trading Co. Ltd. | 9 Electronics35 Advertising | Registered | 2018 |
| CANSOLO 1809224 · TMA994145 · design | Huahai Hengyu (Shenzhen) Trading Co. Ltd. | 9 Electronics35 Advertising | Registered | 2018 |
| CANSOLV 1808054 · TMA989487 | CANSOLV TECHNOLOGIES INC. | 1 Chemicals42 Science | Registered | 2018 |
| CONSILIUM 1591253 · TMA871078 | Gestion Christian Foisy Inc. | 36 Finance | Registered | 2014 |