| CONVERSATION 2200391 | Alliance pour la santé étudiante au Québec inc. | 44 Medical | Pending | 2022 |
| CONVERSATION 2200390 · design | Alliance pour la santé étudiante au Québec inc. | 44 Medical | Pending | 2022 |
| CONVERSATION 2070792 · design | Alliance pour la santé étudiante au Québec inc. | 44 Medical | Pending | 2020 |
| CONVERSATION 2068524 | Alliance pour la santé étudiante au Québec inc. | 44 Medical | Pending | 2020 |
| CONVERSITION 1449939 · TMA793668 · design | Research Now Limited | 42 Science | Registered | 2011 |
| CONVERSION 1787460 · TMA985340 · design | Moulures Bois-Francs inc. | 19 Building | Registered | 2017 |
| CONVERSION 1738780 · TMA1000537 | an individual | 36 Finance | Registered | 2018 |
| CONVERSATILE 1099980 · TMA628972 | The North Face Apparel Corp. (a Delaware corporation) | 22 Ropes | Registered | 2004 |
| CONVERSION 2268587 · design | Widerfunnel Marketing Inc. | 35 Advertising41 Education | Pending | 2023 |
| ConverStory 1993861 · TMA1124437 | an individual | 9 Electronics38 Telecommunications | Registered | 2022 |
| CONVERSANT 1666363 · TMA918940 | Conversant Media, Inc. | 35 Advertising42 Science | Registered | 2015 |
| CONVERSANT 1633964 · TMA887113 · design | Conversant Intellectual Property Management Inc. | 35 Advertising36 Finance42 Science+1 | Registered | 2014 |
| CONVERSANT 1627106 · TMA887112 | Conversant Intellectual Property Management Inc. | 35 Advertising36 Finance42 Science+1 | Registered | 2014 |
| CONVERTING 1043370 · TMA579555 | Eastco International Inc. | 41 Education | Registered | 2003 |
| CONVERTORS 0481798 · TMA278452 | ALLEGIANCE CORPORATION | 5 Pharmaceuticals10 Medical24 Textiles | Registered | 1983 |
| CONVERSATIONHEALTH 2214540 | 2599408 Ontario Inc. | 35 Advertising42 Science | Pending | 2022 |
| CONVERGINT 2168327 · TMA1250925 · design | Convergint Technologies LLC | 37 Construction42 Science45 Legal | Registered | 2024 |
| CONVERGINT 2143143 · TMA1249506 | Convergint Technologies LLC | 37 Construction42 Science45 Legal | Registered | 2024 |
| CONVERTUS 1997526 · TMA1195139 | Convertus Canada Ltd. | 1 Chemicals4 Oils40 Treatment+1 | Registered | 2023 |
| CONVERSICA 1976621 · TMA1111204 | Conversica LLC | 42 Science | Registered | 2021 |
| CONVERTUS 1882528 · TMA1073983 | Convertus Digital Inc. | 9 Electronics35 Advertising42 Science | Registered | 2020 |
| Convertables 1812379 · TMA999122 | Unbounce Marketing Solutions Incorporated | 42 Science | Registered | 2018 |
| CONVERTIBLES 1613543 · TMA904197 · design | British American Tobacco (Brands) Limited | 34 Tobacco | Registered | 2015 |
| CONVERGIS 1527496 · TMA875224 | ivari | 36 Finance | Registered | 2014 |
| CONVERGINT 1522314 · TMA839679 | Convergint Technologies LLC a Delaware Limited Liability Company | 37 Construction | Registered | 2013 |