| DOKOO 2144234 · TMA1210978 · design | Shenzhen Zhimu Technology Co. Ltd. | 9 Electronics21 Housewares | Registered | 2023 |
| DOKOU 2056787 · TMA1215913 | Dongguan Xinhe Yundong Yongpin Co. Ltd | 28 Toys | Registered | 2023 |
| DOKIO 2040842 · TMA1151626 | Jinhua Dokio Technology Co. Ltd | 9 Electronics | Registered | 2022 |
| DOSKO 1637645 · TMA903976 | Northern Tool & Equipment Company, Inc. | 7 Machines | Registered | 2015 |
| DOSKO 1540859 · TMA866241 | Northern Tool & Equipment Company, Inc. | 7 Machines | Registered | 2013 |
| DOJO 2223375 · TMA1249957 | Paramarg Inc. | 20 Furniture24 Textiles | Registered | 2024 |
| DOKA 2170044 · TMA1284363 | Doka GmbH | 9 Electronics42 Science | Registered | 2025 |
| DOK 2141455 · TMA1188678 | "Dr. Martens" International Trading GmbH; "Dr. Maertens" Marketing GmbH | 25 Clothing | Registered | 2023 |
| DOJO 2045422 · TMA1223534 | Paymentsense Limited | 9 Electronics16 Paper35 Advertising+2 | Registered | 2024 |
| DAKO 1983625 · TMA1135458 · design | Owner not shown | 6 Metal19 Building35 Advertising | Registered | 2022 |
| DAKO 1982753 · TMA1135455 | Owner not shown | 6 Metal19 Building35 Advertising | Registered | 2022 |
| DOK 1914796 · TMA1106284 | Dyson Technology Limited | 7 Machines | Registered | 2021 |
| DEKO 1848948 · TMA1156645 | 7912854 CANADA INC. | 20 Furniture | Registered | 2022 |
| DOJO 1521698 · TMA856593 · design | Dojo Partners, LLC | 35 Advertising42 Science | Registered | 2013 |
| DOJO 1521629 · TMA856592 · design | Dojo Partners, LLC | 35 Advertising42 Science | Registered | 2013 |
| DOJO 1521626 · TMA856589 | Dojo Partners, LLC | 35 Advertising42 Science | Registered | 2013 |
| DEKO 1350542 · TMA717113 · design | Advantage Cochrane Sport Inc / Avantage Cochrane Sport Inc | 19 Building | Registered | 2008 |
| DOKA 1202818 · TMA706828 | Doka GmbH | 6 Metal7 Machines9 Electronics+3 | Registered | 2008 |
| DAKO 1162280 · TMA618562 | Agilent Technologies, Inc. | 5 Pharmaceuticals9 Electronics35 Advertising+1 | Registered | 2004 |
| DAKO 0889276 · TMA523206 | Agilent Technologies, Inc. | 1 Chemicals5 Pharmaceuticals | Registered | 2000 |
| DOJO 2174324 · design | Sprix, Ltd. | 9 Electronics16 Paper41 Education | Pending | 2022 |
| DOK 2020486 · design | an individual | 37 Construction41 Education42 Science | Pending | 2020 |
| DOKKIO 1767051 · TMA972218 | Dokkio, Inc. | 9 Electronics42 Science | Registered | 2017 |
| DOGOO 2253643 · TMA1271597 | an individual | 11 Lighting | Registered | 2024 |
| DEKCO 2159247 · TMA1219205 · design | GLAZERO INTERNATIONAL INC | 9 Electronics | Registered | 2024 |