| DIMNIN 2032791 · TMA1162062 | Dimnin Canada Inc. | 14 Jewellery35 Advertising | Registered | 2023 |
| Danini 1768761 · TMA964566 | J.I.M. Imports Limited | 24 Textiles25 Clothing35 Advertising+1 | Registered | 2017 |
| DINION 1157663 · TMA656772 | Bosch Sicherheitssysteme GmbH | 9 Electronics | Registered | 2006 |
| DONINI 0591692 · TMA434351 | Donini Group Inc./Groupe Donini Inc. | 35 Advertising36 Finance37 Construction+2 | Registered | 1994 |
| DONINI 0556235 · TMA434167 | Donini Group Inc./Groupe Donini Inc. | 9 Electronics11 Lighting12 Vehicles+9 | Registered | 1994 |
| DONINI 0542237 · TMA334979 | an individual | 33 Wine | Registered | 1987 |
| DONINI 0459875 · TMA302087 · design | an individual | 30 Coffee | Registered | 1985 |
| DONINI 0459530 · TMA263935 · design | an individual | 30 Coffee | Registered | 1981 |
| DANINO 0333617 · TMA177526 | an individual | 5 Pharmaceuticals20 Furniture21 Housewares+2 | Registered | 1971 |
| DANINO 1977166 | an individual | 29 Meat30 Coffee32 Beer | Pending | 2019 |
| DONEN 2022516 · TMA1132795 · design | Jin Hua Donen Sport Co., LTD. | 25 Clothing | Registered | 2022 |
| DUNAN 1532270 · TMA867149 · design | ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO. LTD. | 7 Machines12 Vehicles28 Toys | Registered | 2013 |
| DUNAN 1418367 · TMA782097 · design | ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO. LTD. | 6 Metal7 Machines9 Electronics+2 | Registered | 2010 |
| &DENIM 1355569 · TMA808427 · design | Owner not shown | 14 Jewellery25 Clothing35 Advertising | Registered | 2011 |
| DUNAN 1328813 · TMA743970 · design | ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO. LTD. | 7 Machines | Registered | 2009 |
| DENON 1027445 · TMA548902 | D&M Holdings, Inc. | 9 Electronics | Registered | 2001 |
| DENIM 0395793 · TMA222488 | Sweetyet Development Limited | 3 Cosmetics | Registered | 1977 |
| DENON 0281185 · TMA141417 · design | D&M Holdings, Inc. | 9 Electronics11 Lighting15 Musical | Registered | 1965 |
| DENIM 2300854 · design | 11661477 Canada Inc. | 35 Advertising | Pending | 2023 |
| DENIM 2222204 | BusBot Inc. | 42 Science | Pending | 2022 |
| DENHIEN 1902295 · TMA1112919 | an individual | 1 Chemicals3 Cosmetics4 Oils+23 | Registered | 2021 |
| DOMINO 2251022 · TMA1235330 | an individual | 35 Advertising41 Education | Registered | 2024 |
| DYNAMO 2249885 · TMA1268783 | Ecoairflow Inc. | 11 Lighting | Registered | 2024 |
| DEMANO 2192969 · TMA1241213 | Courtage Innovation inc. | 36 Finance | Registered | 2024 |
| DUMOON 2166062 · TMA1213416 · design | an individual | 28 Toys | Registered | 2023 |