| DITEK 1804716 · TMA995152 · design | Diversified Technology Group, Inc. | 9 Electronics42 Science | Registered | 2018 |
| DITEK 1804491 · TMA995171 | Diversified Technology Group, Inc. | 9 Electronics42 Science | Registered | 2018 |
| DOTECO 1310892 · TMA745678 · design | an individual | 7 Machines9 Electronics | Registered | 2009 |
| DYTEK 1005013 · TMA535280 | INVISTA Textiles (U.K.) Limited | 1 Chemicals | Registered | 2000 |
| Dotyk 2222657 | an individual | 9 Electronics20 Furniture38 Telecommunications+2 | Pending | 2022 |
| DUOTECH 1868664 · TMA1081610 · design | Keter Plastic Ltd. | 21 Housewares | Registered | 2020 |
| DUOTECH 1825157 · TMA1064806 · design | Keter Plastic Ltd. | 20 Furniture | Registered | 2019 |
| DUOTECH 1798711 · TMA1050825 · design | Keter Plastic Ltd. | 19 Building | Registered | 2019 |
| DETEXIA 1689609 · TMA941325 · design | an individual | 9 Electronics10 Medical | Registered | 2016 |
| Doteasy 1187743 · TMA637785 | WORLD HOST GROUP CA CORP. | 42 Science | Registered | 2005 |
| DoItEco 2250201 | SAMSUNG ELECTRONICS CO. LTD. | 7 Machines9 Electronics11 Lighting | Pending | 2023 |
| Diydeg 2228584 · TMA1252790 | Shenzhen Kelingli Technology Co. Ltd. | 11 Lighting20 Furniture21 Housewares | Registered | 2024 |
| DOODOGS 2193786 · TMA1218751 · design | Jinjang Xuanyu Trade Co. Ltd. | 25 Clothing | Registered | 2024 |
| DOTSHA 2171722 · TMA1282596 · design | DOTSHA | 38 Telecommunications | Registered | 2025 |
| DIDK 2144468 · TMA1230029 | SHENHE INTERNATIONAL HOLDING GROUP CO., LIMITED | 25 Clothing | Registered | 2024 |
| DEDICA 2120748 · TMA1222093 | an individual | 7 Machines11 Lighting | Registered | 2024 |
| DUTZW 2103486 · TMA1189543 | an individual | 3 Cosmetics | Registered | 2023 |
| datasy 2088042 · TMA1184882 | Shanghai Pinteng Electronic Commerce Co. Ltd. | 25 Clothing | Registered | 2023 |
| DIYTEACH 2070934 · TMA1160328 · design | Zhejiang Teach E-Commerce Co.Ltd | 6 Metal | Registered | 2023 |
| DODECA 2048769 · TMA1167936 | Matthew McCormick Studio Inc. | 11 Lighting | Registered | 2023 |
| DITEC 1937383 · TMA1144979 | an individual | 6 Metal7 Machines9 Electronics+2 | Registered | 2022 |
| DOTCH 1935100 · TMA1123791 | TCL Communication Technology Holdings Limited | 9 Electronics | Registered | 2022 |
| dieWATCH 1910293 · TMA1146332 | TR ELECTRONICS CANADA INC. | 9 Electronics | Registered | 2022 |
| DUOTEX 1909044 · TMA1103752 | LYDALL, INC. | 17 Rubber | Registered | 2021 |
| DETUOSI 1908420 · TMA1096297 · design | Shenzhen Bisituo Technology Co.Ltd | 9 Electronics | Registered | 2021 |