| DENS 1395106 · TMA798572 | Georgia-Pacific Gypsum LLC | 19 Building | Registered | 2011 |
| DNAS 1134938 · TMA615365 · design | Sony Interactive Entertainment Inc. | 9 Electronics28 Toys42 Science | Registered | 2004 |
| DNC 2258267 · TMA1276488 | an individual | 21 Housewares | Registered | 2024 |
| DNZ 1962551 · TMA1244632 · design | Les Entreprises DNZ inc. | 3 Cosmetics9 Electronics14 Jewellery+8 | Registered | 2024 |
| DMS 1756589 · TMA1010649 | Delta Air Lines, Inc. | 35 Advertising37 Construction | Registered | 2018 |
| DNG 1699755 · TMA919672 · design | Nassrallah Law Offices Professional Corporation | 45 Legal | Registered | 2015 |
| DMS 1655919 · TMA895435 | Advanced Flow Solutions, Inc. | 9 Electronics | Registered | 2015 |
| DNJ 1529290 · TMA871854 | DNJ ENGINE COMPONENTS, INC. | 7 Machines | Registered | 2014 |
| DMS 1496670 · TMA805825 · design | DMS Health Technologies - Canada, Inc. | 44 Medical | Registered | 2011 |
| DNC 1186754 · TMA630361 · design | Delaware North Companies, Inc. (a corporation of the State of Delaware) | 35 Advertising | Registered | 2005 |
| DMS 0545934 · TMA325957 · design | DANLY INTERNATIONAL, INC. | 7 Machines | Registered | 1987 |
| DMS 2143926 | ESSENTIAL ENERGY SERVICES LTD. | 9 Electronics42 Science | Pending | 2021 |
| DMS 0924756 | College of Medical Radiation and Imaging Technologists of Ontario | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 2018 |
| DONGS 2142198 · TMA1201530 | Shenzhen Chengquan Electronic Commerce Co. Ltd. | 9 Electronics | Registered | 2023 |
| DENSO 1986182 · TMA1204600 · design | DENSO CORPORATION, a legal entity | 9 Electronics35 Advertising36 Finance+3 | Registered | 2023 |
| DENSO 1851919 · TMA1099885 · design | DENSO CORPORATION, a legal entity | 42 Science | Registered | 2021 |
| DENSO 1840834 · TMA1069779 · design | DENSO CORPORATION, a legal entity | 4 Oils | Registered | 2020 |
| DINSE 1827436 · TMA1074326 | an individual | 7 Machines9 Electronics11 Lighting | Registered | 2020 |
| DUNGS 1798016 · TMA1110632 | KARL DUNGS GMBH & CO. KG | 6 Metal7 Machines9 Electronics+3 | Registered | 2021 |
| DENSO 1632644 · TMA977726 · design | DENSO CORPORATION, a legal entity | 5 Pharmaceuticals9 Electronics18 Leather+14 | Registered | 2017 |
| DENSO 1593223 · TMA893904 | WINN & COALES INTERNATIONAL LIMITED | 1 Chemicals2 Paints7 Machines+2 | Registered | 2015 |
| DENSO 1589670 · TMA883399 · design | WINN & COALES INTERNATIONAL LIMITED | 1 Chemicals2 Paints17 Rubber+1 | Registered | 2014 |
| DENSO 1550856 · TMA950779 · design | DENSO CORPORATION, a legal entity | 1 Chemicals5 Pharmaceuticals7 Machines+6 | Registered | 2016 |
| Dunes 1501137 · TMA850871 | Arterra Wines Canada, Inc. | 32 Beer33 Wine | Registered | 2013 |
| DANSK 1201169 · TMA627851 | BUCKWOLD WESTERN LTD. | 19 Building | Registered | 2004 |