| CONCRETE 1187238 · TMA662827 | L'OREAL (SOCIETE ANONYME) | 3 Cosmetics | Registered | 2006 |
| CONCREA 2155081 | CONCRÉA INC. | 35 Advertising36 Finance37 Construction+1 | Pending | 2021 |
| concreate 1768093 · TMA1082703 | New Spirit China Ltd. | 19 Building20 Furniture | Registered | 2020 |
| CONCREATE 1267315 · TMA689541 | LEHIGH HANSON MATERIALS LIMITED | 19 Building | Registered | 2007 |
| CONCREFY 1943461 · TMA1175428 · design | an individual | 35 Advertising37 Construction40 Treatment+1 | Registered | 2023 |
| CONCERA 1845335 · TMA1021924 | GCP Applied Technologies Inc. | 1 Chemicals | Registered | 2019 |
| CONCERTA 1100066 · TMA594766 | ALZA CORPORATION (A DELAWARE CORPORATION) | 5 Pharmaceuticals | Registered | 2003 |
| CANCRETE 1067805 · TMA562726 | Advanced Agri-Direct Inc. | 21 Housewares | Registered | 2002 |
| CONCRETEMAX 2181300 | Concretemax Ontario Ltd. | 37 Construction | Pending | 2022 |
| CONCORDIA 1796251 · TMA1048694 · design | Concordia Pharmaceuticals, Inc. S.À.R.L. | 5 Pharmaceuticals10 Medical | Registered | 2019 |
| CONCRECEL 1490193 · TMA820350 | Concrecel USA, LLC | 19 Building | Registered | 2012 |
| CONCORDIA 1074691 · TMA541453 | The Empire Life Insurance Company/L'Empire Compagnie d'Assurance-Vie | 36 Finance | Registered | 2001 |
| CONCERTIA 1062110 · TMA603913 | CONCERTIA TECHNOLOGIES INC. | 38 Telecommunications42 Science | Registered | 2004 |
| CONCORDIA 1002958 · TMA531739 · design | The Empire Life Insurance Company/L'Empire Compagnie d'Assurance-Vie | 36 Finance | Registered | 2000 |
| CONCORDIA 1002362 · TMA531727 | The Empire Life Insurance Company/L'Empire Compagnie d'Assurance-Vie | 36 Finance | Registered | 2000 |
| CONCORDIA 0913204 | CONCORDIA UNIVERSITY | All goods and services | Protected | 2001 |
| CONCORDIA 0900975 · design | CONCORDIA UNIVERSITY | All goods and services | Protected | 1978 |
| CONCORDIA 0900974 · design | CONCORDIA UNIVERSITY | All goods and services | Protected | 1978 |
| CONCORDIA 0621313 · TMA402482 | an individual | 4 Oils6 Metal9 Electronics+7 | Registered | 1992 |
| CONCIERE 1984266 · TMA1229826 | LeVecke Corporation | 33 Wine | Registered | 2024 |
| CONCERTO 1950251 · TMA1090570 | Power Management Holdings (U.S.), Inc. | 9 Electronics39 Transport40 Treatment+1 | Registered | 2020 |
| CONCERTO 1857496 · TMA1018195 | Flextherm Inc. | 9 Electronics | Registered | 2019 |
| Concerto 1821158 · TMA995543 | Owner not shown | 14 Jewellery | Registered | 2018 |
| CONCORE 1803466 · TMA1024757 · design | Concore Inc. | 35 Advertising37 Construction42 Science | Registered | 2019 |
| CONCERT 1800731 · TMA1117877 | Vox Media, LLC | 35 Advertising | Registered | 2022 |