| DISSA 2071831 · TMA1160382 | Shenzhen Panda Cross-border Trade Co. Ltd. | 24 Textiles | Registered | 2023 |
| DISA 1990403 · TMA1281839 | Disa Technologies, Inc. | 7 Machines40 Treatment | Registered | 2025 |
| DIOSA 1987387 · TMA1124356 | DIOSA designs Inc. | 9 Electronics16 Paper18 Leather+2 | Registered | 2022 |
| DISA 1581339 · TMA854607 | DISA GLOBAL SOLUTIONS, INC. | 39 Transport44 Medical45 Legal | Registered | 2013 |
| DICEA 0760282 · TMA448654 | Baxter International, Inc. (a Delaware Corporation) | 10 Medical | Registered | 1995 |
| DIOS 2171982 · TMA1228912 | Emperor Solutions Limited | 34 Tobacco | Registered | 2024 |
| DCA 2149563 · TMA1201833 | JIANGSU DONGCHENG POWER TOOLS CO. LTD. | 8 Hand | Registered | 2023 |
| DECA 2144076 · TMA1280563 · design | Distributive Education Clubs of America, Inc. | 9 Electronics16 Paper35 Advertising+1 | Registered | 2025 |
| DECA 2144075 · TMA1280562 | Distributive Education Clubs of America, Inc. | 9 Electronics16 Paper35 Advertising+1 | Registered | 2025 |
| DCA 2030888 · TMA1153987 | JIANGSU DONGCHENG POWER TOOLS CO. LTD. | 7 Machines | Registered | 2022 |
| DCA 2030886 · TMA1151553 | JIANGSU DONGCHENG POWER TOOLS CO. LTD. | 9 Electronics | Registered | 2022 |
| DIEGA 1945347 · TMA1165035 | an individual | 18 Leather25 Clothing | Registered | 2023 |
| DESSA 1889763 · TMA1096573 | DeepLearning Financial Technologies Inc. | 9 Electronics35 Advertising42 Science | Registered | 2021 |
| DCS 1888941 · TMA1072045 | BONA AB, a corporation organized under the laws of Sweden | 7 Machines | Registered | 2020 |
| DICK 1881639 · TMA1085568 | Friedr. Dick GmbH & Co. KG | 7 Machines8 Hand21 Housewares | Registered | 2020 |
| DECA 1843612 · TMA1012063 | ROC Capital Group Inc. | 21 Housewares25 Clothing | Registered | 2019 |
| DOCEA 1809080 · TMA1025264 | INTEL CORPORATION | 9 Electronics42 Science | Registered | 2019 |
| DECA 1782906 · TMA970814 | LOBLAWS INC. | 33 Wine | Registered | 2017 |
| DECA 1781130 · TMA971007 | GS Beauty Group Inc. | 3 Cosmetics | Registered | 2017 |
| DSA 1735462 · TMA974467 | Daido Steel Co. Ltd. | 6 Metal | Registered | 2017 |
| DICE 1681862 · TMA909088 · design | Electronic Arts Inc. | 9 Electronics41 Education42 Science | Registered | 2015 |
| DSA 1658585 · TMA916863 · design | Direct Sellers Association of Canada - Association de Ventes Directes du Canada | 35 Advertising41 Education | Registered | 2015 |
| DISH 1625215 · TMA918691 · design | an individual | 37 Construction | Registered | 2015 |
| DSA 1602580 · TMA865746 · design | Dynamic Systems Analysis Ltd. | 42 Science45 Legal | Registered | 2013 |
| DISH 1578878 · TMA955045 · design | an individual | 9 Electronics38 Telecommunications | Registered | 2016 |