| DEEDA 1998452 · TMA1102173 · design | Beijing Waterdrop Technology Group Co. Ltd. | 36 Finance | Registered | 2021 |
| DayDay 2278882 | an individual | 18 Leather | Pending | 2023 |
| DeDe 1792067 · TMA1040962 | The Ddrops Company Inc. | 5 Pharmaceuticals35 Advertising44 Medical | Registered | 2019 |
| DIDA 1584808 · TMA869978 | NEW NORDIC INC. | 5 Pharmaceuticals | Registered | 2014 |
| Dada 1437626 · TMA790047 | an individual | 6 Metal12 Vehicles14 Jewellery+3 | Registered | 2011 |
| DYDO 1248850 · TMA711144 · design | DyDo GROUP HOLDINGS, INC. | 3 Cosmetics5 Pharmaceuticals29 Meat+2 | Registered | 2008 |
| DUDA 0663338 · TMA475811 | A. DUDA & SONS, INC. | 6 Metal7 Machines9 Electronics+5 | Registered | 1997 |
| DETA 0374980 · TMA215603 | Exide Technologies GmbH | 9 Electronics | Registered | 1976 |
| DETIA 0332749 · TMA177065 | Owner not shown | 5 Pharmaceuticals17 Rubber | Registered | 1971 |
| DADA 2341648 · design | Icomwell Intelligent Medical Technology Co.Ltd. | 26 Sewing | Pending | 2024 |
| DEDE 2259881 · design | Owner not listed | 7 Machines17 Rubber | Pending | 2023 |
| DETIA 2253199 | Owner not shown | 1 Chemicals5 Pharmaceuticals | Pending | 2023 |
| DADA 2106045 · design | DADA DRINKS CANADA INC. | 32 Beer35 Advertising | Pending | 2021 |
| DOT 2264769 · TMA1284896 | Owner not listed | 35 Advertising36 Finance | Registered | 2025 |
| DUDHUH 2256387 · TMA1276218 | Quanzhou Shiyao Trading Co. Ltd. | 25 Clothing | Registered | 2024 |
| doty 2231174 · TMA1256537 | an individual | 42 Science | Registered | 2024 |
| DEETÄH 2212699 · TMA1243151 | an individual | 32 Beer | Registered | 2024 |
| DOT 2208412 · TMA1227422 | SightGlass Vision, Inc. | 9 Electronics | Registered | 2024 |
| DUDI 2200669 · TMA1223287 · design | SellerX Eighteen GmbH | 8 Hand | Registered | 2024 |
| DOYOUDO 2191715 · TMA1234735 | an individual | 14 Jewellery21 Housewares | Registered | 2024 |
| DOTA 2174491 · TMA1249620 | Valve Corporation | 9 Electronics41 Education | Registered | 2024 |
| Dehati 2164886 · TMA1237074 | Sarpir Canada Trading Corporation | 29 Meat30 Coffee | Registered | 2024 |
| DID 2156349 · TMA1192962 | Z FIRE CORPORATION | 28 Toys | Registered | 2023 |
| DUET 2113103 · TMA1229918 · design | Fisher & Paykel Healthcare Limited | 10 Medical | Registered | 2024 |
| DUET 2108601 · TMA1191814 · design | Duet Digital Finance Inc. | 9 Electronics35 Advertising36 Finance+1 | Registered | 2023 |