| CONCEPT P 2157494 · TMA1193947 · design | Thai Coconut Public Company Limited | 29 Meat32 Beer | Registered | 2023 |
| Concept B 1958325 · TMA1176095 | Corporation Récréotouristique du Bassin de Chambly | 35 Advertising41 Education | Registered | 2023 |
| CONCEPT D 1951161 · TMA1218870 | ACER INCORPORATED | 9 Electronics | Registered | 2024 |
| CONCEPT K 1490218 · TMA866141 · design | Owner not shown | 25 Clothing | Registered | 2013 |
| Concept V 1220960 · TMA649173 | Synex Solutions collectives inc. | 36 Finance | Registered | 2005 |
| CONCENTUS 1088472 · TMA615307 | Bosch Sicherheitssysteme GmbH | 9 Electronics | Registered | 2004 |
| 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 |
| CONCERT 1800731 · TMA1117877 | Vox Media, LLC | 35 Advertising | Registered | 2022 |
| CONCERT 1775205 · TMA982044 · design | Concert Properties Ltd. | 35 Advertising36 Finance37 Construction | Registered | 2017 |
| CONCENS 1697209 · TMA971018 | Owner not shown | 7 Machines9 Electronics35 Advertising | Registered | 2017 |
| CONCERT 1690658 · TMA1015222 | INTERNATIONAL BUSINESS MACHINES CORPORATION | 9 Electronics42 Science | Registered | 2019 |
| CONCOSTS 1650034 · TMA948208 | K Weber Consulting Inc. | 35 Advertising36 Finance37 Construction+2 | Registered | 2016 |
| CONCOSTS 1650033 · TMA948195 · design | K Weber Consulting Inc. | 35 Advertising36 Finance37 Construction+2 | Registered | 2016 |
| CONCERTO 1483783 · TMA797616 | GROUPE SEB CANADA INC. | 11 Lighting21 Housewares | Registered | 2011 |
| CONCERTO 1463923 · TMA837673 | KLASTECH - Karpushko Laser Technologies GmbH a legal entity | 9 Electronics | Registered | 2012 |
| CONCERTO 1462463 · TMA782445 | Oldcastle Building Products Canada, Inc./Les Matériaux de Construction Oldcastle Canada, Inc. | 19 Building | Registered | 2010 |
| CONCERTO 1385460 · TMA792901 | CertainTeed Ceilings Corporation | 19 Building | Registered | 2011 |
| CONCERT 1350614 · TMA747693 | York University as trustee of the Consortium on New Media, Creative and Entertainment R & D in the Toronto Region | 35 Advertising36 Finance42 Science | Registered | 2009 |
| CONCERTO 1248009 · TMA661252 | Greenhouse Grown Foods Inc. | 29 Meat31 Fresh | Registered | 2006 |
| CONCERTO 1242615 · TMA697357 | MEDTRONIC, INC. a Minnesota corporation | 10 Medical | Registered | 2007 |
| CONCERTA 1100066 · TMA594766 | ALZA CORPORATION (A DELAWARE CORPORATION) | 5 Pharmaceuticals | Registered | 2003 |
| CONCERT 1018567 · TMA551423 | Concert Properties Ltd. | 35 Advertising36 Finance37 Construction | Registered | 2001 |
| CONCERTO 1004056 · TMA537982 | INDUSTRIELLE ALLIANCE, ASSURANCE ET SERVICES FINANCIERS INC. | 36 Finance | Registered | 2000 |