| DUPAR 0234233 · TMA106295 · design | DEWHURST PLC | 8 Hand9 Electronics | Registered | 1957 |
| DOPURA 2027749 · TMA1272059 · design | DOPURA LLC | 3 Cosmetics4 Oils | Registered | 2024 |
| DOPPER 1903945 · TMA1107096 · design | an individual | 21 Housewares | Registered | 2021 |
| DOBFAR 1789987 · TMA1082731 | ACS DOBFAR S.P.A. a joint stock company | 1 Chemicals5 Pharmaceuticals | Registered | 2020 |
| DOPPER 1725239 · TMA952300 | an individual | 21 Housewares35 Advertising36 Finance+1 | Registered | 2016 |
| DOWPER 0466594 · TMA264379 | The Dow Chemical Company | 1 Chemicals2 Paints3 Cosmetics+3 | Registered | 1981 |
| DOVARO 2323395 | an individual | 1 Chemicals6 Metal17 Rubber+3 | Pending | 2023 |
| DOVARO 2285025 · design | an individual | 1 Chemicals6 Metal17 Rubber+3 | Pending | 2023 |
| DYPER 2052220 · TMA1127536 · design | Dyper Inc. | 3 Cosmetics5 Pharmaceuticals35 Advertising+1 | Registered | 2022 |
| DPR 1943193 · TMA1156700 · design | an individual | 9 Electronics25 Clothing41 Education | Registered | 2022 |
| DBAR 1549622 · TMA843773 | The Dinex Group, LLC | 43 Restaurants | Registered | 2013 |
| DIVAR 1548916 · TMA858029 | e.p. Technologieberatungs und Beteiligungs GmbH | 7 Machines | Registered | 2013 |
| Dover 1491024 · TMA855538 | LIXIL Corporation | 11 Lighting | Registered | 2013 |
| DIVAR 1155290 · TMA616648 | Bosch Sicherheitssysteme GmbH | 9 Electronics | Registered | 2004 |
| DOVER 1149681 · TMA692176 | DELAWARE CAPITAL FORMATION, INC. (A DELAWARE CORPORATION) | 6 Metal7 Machines9 Electronics+4 | Registered | 2007 |
| DOVER 1107841 · TMA600935 | ALLAN BLOCK CORPORATION | 19 Building | Registered | 2004 |
| DOVER 0991699 · NFLD1699 · design | HUDSON MOTOR CAR COMPANY (A MICHIGAN CORPORATION) | 12 Vehicles | Registered | 1929 |
| DOVER 0483815 · TMA273446 | Cardinal Health 529, LLC | 10 Medical | Registered | 1982 |
| DOVER 0401470 · TMA223657 | DELAWARE CAPITAL FORMATION, INC. (A DELAWARE CORPORATION) | 6 Metal7 Machines8 Hand+10 | Registered | 1977 |
| DOVER 0203198 · UCA32564 | ABG IZOD LLC | 25 Clothing | Registered | 1949 |
| DYVAR 2252952 | Owner not listed | 11 Lighting | Pending | 2023 |
| Divar 2209134 | Agah Pardazan Hooshmand Company | 35 Advertising | Pending | 2022 |
| DEHYPAR 1859964 · TMA1077475 | Emery Oleochemicals GmbH | 1 Chemicals | Registered | 2020 |
| deepair 1815741 · TMA1065807 | A.COSMETICS Co. Ltd, a legal entity | 3 Cosmetics | Registered | 2019 |
| DOPORIO 2288054 | ORION CORPORATION | 5 Pharmaceuticals | Pending | 2023 |