| DIALECT 2260060 · TMA1279381 | Dialect Labs Inc | 42 Science | Registered | 2024 |
| DIALECT 2225366 · TMA1243272 | Un Beau Voyage Limited | 3 Cosmetics | Registered | 2024 |
| DIALIGHT 1515158 · TMA871242 | an individual | 3 Cosmetics | Registered | 2014 |
| DIALIGHT 1268722 · TMA674695 | DIALIGHT CORPORATION | 9 Electronics11 Lighting42 Science | Registered | 2006 |
| DEALSTREET 1464892 · TMA808700 · design | an individual | 35 Advertising38 Telecommunications41 Education | Registered | 2011 |
| DALGETY 2074333 · TMA1210561 · design | Dalgety Corporation Ltd | 30 Coffee | Registered | 2023 |
| DULCET 1787253 · TMA1034020 | Delta Faucet Company | 11 Lighting | Registered | 2019 |
| DUALKUT 1591665 · TMA946946 · design | 2WP International Pty Ltd | 8 Hand | Registered | 2016 |
| DULCET 1442256 · TMA810756 · design | Edge Vision Opticals Inc. | 9 Electronics | Registered | 2011 |
| DIALECTIC 1769254 · TMA973500 | an individual | 35 Advertising41 Education | Registered | 2017 |
| DUALSTART 1571165 · TMA899495 | CertainTeed Corporation | 19 Building | Registered | 2015 |
| DEALSDIRECT 1366105 · TMA754280 · design | Auction Alliance Pty Ltd | 9 Electronics14 Jewellery15 Musical+6 | Registered | 2009 |
| DAYLIGHT 2259187 · TMA1279301 | THE ELEMENTS TORONTO INC. | 25 Clothing41 Education | Registered | 2024 |
| DALKEITH 2249067 · TMA1264554 | JACKSON WINE ESTATES INTERNATIONAL LTD | 33 Wine | Registered | 2024 |
| DAYLIGHT 2168603 · TMA1200560 | Enro Holdings Limited | 36 Finance | Registered | 2023 |
| DualStorm 2134107 · TMA1176012 | SAMSUNG ELECTRONICS CO. LTD. | 7 Machines | Registered | 2023 |
| DELIGHTFULS 1996103 · TMA1205659 | PetSmart Home Office LLC | 31 Fresh | Registered | 2023 |
| DELIGHTFULL 1977195 · TMA1262188 | Curation Foods, Inc. | 29 Meat | Registered | 2024 |
| DILUSTREAM 1943017 · TMA1198376 | bioMérieux | 9 Electronics11 Lighting | Registered | 2023 |
| DELAGEDIVA 1939428 · TMA1114924 · design | INNOBEAUTY GLOBAL LIMITED | 3 Cosmetics5 Pharmaceuticals30 Coffee+2 | Registered | 2021 |
| DELIGHTED 1938222 · TMA1155773 | Delighted, LLC | 42 Science | Registered | 2022 |
| 3DLighting 1874844 · TMA1043215 | Dacor | 11 Lighting | Registered | 2019 |
| DELECTABLE 1869596 · TMA1103163 · design | MAV BEAUTY CANADA, INC. | 3 Cosmetics | Registered | 2021 |
| DULCEDO 1856377 · TMA1054938 | DULCEDO INC. | 25 Clothing35 Advertising | Registered | 2019 |
| Delectant 1838640 · TMA1081854 | Fashcam Corp | 9 Electronics16 Paper18 Leather+6 | Registered | 2020 |