| DOCMINE 1783976 · TMA1021859 | Owner not shown | 35 Advertising42 Science | Registered | 2019 |
| DESMOND 1804577 · TMA1049183 | Delta Faucet Company | 11 Lighting | Registered | 2019 |
| DESMOND 0262923 · TMA125675 | THE DESMOND-STEPHAN MFG. CO. | 7 Machines | Registered | 1962 |
| DOCMANA 2368612 | 9528-3669 Québec inc. | 35 Advertising42 Science | Pending | 2024 |
| docomondo 2005143 · TMA1145370 | an individual | 9 Electronics | Registered | 2022 |
| DOCUMENTS 2249669 · TMA1268722 | Owner not listed | 3 Cosmetics | Registered | 2024 |
| DJMUMU 2067294 · TMA1175611 | an individual | 28 Toys | Registered | 2023 |
| DECOMOMO 1850018 · TMA1015496 · design | an individual | 16 Paper20 Furniture21 Housewares+1 | Registered | 2019 |
| DOCUMENTit 1746323 · TMA987353 | Inspirit Group, LLC | 42 Science | Registered | 2017 |
| DESSANOMICS 1502384 · TMA817394 | Dessaco Inc. | 36 Finance | Registered | 2012 |
| DESSANOMICS 1422307 · TMA786755 | Dessaco Inc. | 9 Electronics16 Paper41 Education | Registered | 2011 |
| DISCUMENTARY 1421313 · TMA786520 | Pittsburgh Community Broadcasting Corporation | 38 Telecommunications | Registered | 2011 |
| DOCUMENTAL 1202279 · TMA634393 | DOCUMENTAL INC. | 16 Paper35 Advertising36 Finance+7 | Registered | 2005 |
| DOCUMANAGE 1152996 · TMA644729 | Niva Inc. | 35 Advertising38 Telecommunications | Registered | 2005 |
| DIGIMON 0874324 · TMA544203 | Kabushiki Kaisha Bandai (Bandai Co. Ltd.) | 9 Electronics28 Toys | Registered | 2001 |
| DOGGYMAN 0818933 · TMA479165 | Doggyman H.A. Co., Ltd. | 8 Hand21 Housewares | Registered | 1997 |
| DESMOMELT 0815697 · TMA516817 | an individual | 1 Chemicals17 Rubber | Registered | 1999 |
| DOCUMENTUM 0760745 · TMA493090 | EMC Corporation | 9 Electronics42 Science | Registered | 1998 |
| DOCUMENTIK 0661283 · TMA400281 | GESTAR FORMATION ET CONSULTATION EN GESTION DES DOCUMENTS ADMINISTRATIFS ET DES ARCHIVES, INC. | 9 Electronics | Registered | 1992 |
| DOCKOMINIUM 0640445 · TMA395795 | BRIDGEVIEW MARINA LIMITED | 35 Advertising37 Construction | Registered | 1992 |
| DIHEXAMIN 0493439 · TMA282850 | an individual | 5 Pharmaceuticals | Registered | 1983 |
| DOKUMENTAL 0271481 · TMA130558 | Owner not shown | 2 Paints | Registered | 1963 |
| DECKMAN 2370096 | Owner not listed | 7 Machines | Pending | 2024 |
| DIGIMENTOR24 2326345 | Digistore24 Inc. | 9 Electronics42 Science | Pending | 2024 |
| Dexnump 2286847 | Suzhou Dekelanpu Technology Co. Ltd. | 11 Lighting | Pending | 2023 |