| DELSTAR 1634848 · TMA890745 | DIXIE ELECTRIC LTD. | 7 Machines | Registered | 2014 |
| DELSTAR 1592550 · TMA900825 · design | SZ TELSTAR Co. LTD. | 9 Electronics | Registered | 2015 |
| DELSTAR 0621502 · TMA363055 · design | 4525663 Canada Inc. | 29 Meat35 Advertising | Registered | 1989 |
| DELSTAR 0620342 · TMA361706 | 4525663 Canada Inc. | 29 Meat35 Advertising | Registered | 1989 |
| DILUSTREAM 1943017 · TMA1198376 | bioMérieux | 9 Electronics11 Lighting | Registered | 2023 |
| DELSTRIGO 1795035 · TMA1022769 | Merck Sharp & Dohme LLC | 5 Pharmaceuticals | Registered | 2019 |
| DIALECT 2260060 · TMA1279381 | Dialect Labs Inc | 42 Science | Registered | 2024 |
| DAYLIGHT 2259187 · TMA1279301 | THE ELEMENTS TORONTO INC. | 25 Clothing41 Education | Registered | 2024 |
| DALKEITH 2249067 · TMA1264554 | JACKSON WINE ESTATES INTERNATIONAL LTD | 33 Wine | Registered | 2024 |
| DIALECT 2225366 · TMA1243272 | Un Beau Voyage Limited | 3 Cosmetics | Registered | 2024 |
| DAYLIGHT 2168603 · TMA1200560 | Enro Holdings Limited | 36 Finance | Registered | 2023 |
| DualStorm 2134107 · TMA1176012 | SAMSUNG ELECTRONICS CO. LTD. | 7 Machines | Registered | 2023 |
| DALGETY 2074333 · TMA1210561 · design | Dalgety Corporation Ltd | 30 Coffee | Registered | 2023 |
| DELIGHTFULS 1996103 · TMA1205659 | PetSmart Home Office LLC | 31 Fresh | Registered | 2023 |
| DELIGHTFULL 1977195 · TMA1262188 | Curation Foods, Inc. | 29 Meat | Registered | 2024 |
| 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 |
| DELEGATE 1837104 · TMA1077738 | an individual | 9 Electronics35 Advertising41 Education+1 | Registered | 2020 |
| DELEGATUS 1823749 · TMA1057552 | Delegatus services juridiques inc. | 35 Advertising36 Finance38 Telecommunications+4 | Registered | 2019 |
| DWELLSTUDIO 1812005 · TMA1056648 | Dwell Studio LLC | 6 Metal8 Hand9 Electronics+9 | Registered | 2019 |
| 1001 DELIGHTS 1800012 · TMA1095662 · design | LIDL STIFTUNG & CO. KG | 5 Pharmaceuticals20 Furniture29 Meat+4 | Registered | 2021 |