| DUOLOCK 1834020 · TMA1072327 | Owner not shown | 5 Pharmaceuticals | Registered | 2020 |
| DUOLOCK 0747106 · TMA507071 | ConvaTec Inc. | 10 Medical | Registered | 1999 |
| DELOCA 2055636 · TMA1275457 | NOUSHA INC. | 29 Meat30 Coffee | Registered | 2024 |
| DULCE 1571124 · TMA845803 | Laboratoires Choisy Ltée | 3 Cosmetics | Registered | 2013 |
| DULUC 1416606 · TMA761824 | Owner not shown | 33 Wine | Registered | 2010 |
| DLOCK 1033686 · TMA547586 | Degelman Industries LP, by its general partner, Degelman Industries GP Inc. | 7 Machines | Registered | 2001 |
| DULAC 0343727 · TMA188386 · design | Frito-Lay North America, Inc. (a Delaware Corporation) | 29 Meat30 Coffee | Registered | 1973 |
| DULCE 2092535 · design | Owner not shown | 43 Restaurants | Pending | 2021 |
| DUOLOGY 2033568 · TMA1165383 | Owner not shown | 24 Textiles25 Clothing | Registered | 2023 |
| DOLICHE 1465605 · TMA793166 | IPEKYOLU KUYUMCULUK KIYMETLI TASLAR SAN.VE TIC.LTD STI | 9 Electronics14 Jewellery18 Leather+2 | Registered | 2011 |
| DIALOCK 1075731 · TMA567268 · design | Häfele GmbH & Co. KG | 6 Metal7 Machines9 Electronics | Registered | 2002 |
| DIALOCK 0891770 · TMA547364 | Häfele GmbH & Co. KG | 6 Metal7 Machines9 Electronics | Registered | 2001 |
| DALOGS 2156801 · TMA1197110 | an individual | 39 Transport | Registered | 2023 |
| Deloky 2127130 · TMA1190867 | an individual | 28 Toys | Registered | 2023 |
| DUALHOOK 2125134 · TMA1202747 · design | an individual | 6 Metal7 Machines8 Hand | Registered | 2023 |
| DALOG 2067165 · TMA1204827 | an individual | 9 Electronics37 Construction41 Education+1 | Registered | 2023 |
| Dulcii 1975580 · TMA1128234 | SHENZHEN ZHENZHI TECHNOLOGY CO.LTD. | 20 Furniture | Registered | 2022 |
| DELISH 1916663 · TMA1145218 · design | Hearst Communications, Inc. | 8 Hand9 Electronics21 Housewares | Registered | 2022 |
| DOLCO 1865754 · TMA1055367 | Tekni-Plex, Inc. a Delaware corporation | 19 Building20 Furniture | Registered | 2019 |
| DELICA 1794599 · TMA992732 | T&G Global Limited | 31 Fresh | Registered | 2018 |
| DLC 1754748 · TMA954093 | DOMINION LENDING CENTRES INC. CENTRES HYPOTHECAIRES DOMINION INC. | 9 Electronics16 Paper35 Advertising+1 | Registered | 2016 |
| DLC 1746626 · TMA964605 | Efficiency Forward, Inc. | 35 Advertising42 Science | Registered | 2017 |
| DOLCE 1741763 · TMA986788 | Dolce International Holdings, Inc. | 35 Advertising39 Transport41 Education+1 | Registered | 2017 |
| DULCEO 1736087 · TMA1042327 | Owner not shown | 1 Chemicals5 Pharmaceuticals30 Coffee | Registered | 2019 |
| DULCIE 1735410 · TMA946607 · design | an individual | 30 Coffee | Registered | 2016 |