| DENTEC 1628250 · TMA910961 | Dentec Safety Specialists Inc. | 3 Cosmetics5 Pharmaceuticals9 Electronics+2 | Registered | 2015 |
| DANTEC 1510187 · TMA855984 | Natus Medical Incorporated (a Delaware corporation) | 9 Electronics10 Medical | Registered | 2013 |
| DENTEC 2146073 | Dentec Safety Specialists Inc. | 9 Electronics10 Medical26 Sewing | Pending | 2021 |
| DIENTES 1764539 · TMA1031051 | Intercontinental Great Brands LLC | 30 Coffee | Registered | 2019 |
| DANATEC 1362735 · TMA746420 · design | WE KNOW TRAINING INC. | 9 Electronics16 Paper41 Education | Registered | 2009 |
| DYNATEC 1332326 · TMA701531 | SHERRITT INTERNATIONAL CORPORATION | 37 Construction42 Science | Registered | 2007 |
| DINTAG 1406328 · TMA804852 | Dintag Corporation Oy | 9 Electronics42 Science45 Legal | Registered | 2011 |
| DENTEK 1140857 · TMA631486 | Dentek Oral Care, Inc. | 2 Paints3 Cosmetics5 Pharmaceuticals+3 | Registered | 2005 |
| DenTeach 1994735 · TMA1163124 | Tactile Robotics Ltd. | 44 Medical | Registered | 2023 |
| DYNATECT 1694441 · TMA975404 | Dynatect Manufacturing, Inc. | 2 Paints6 Metal7 Machines+5 | Registered | 2017 |
| DONUTES 1682767 · TMA911496 · design | DONUTES INTERNATIONAL CO. LTD. | 29 Meat30 Coffee39 Transport+1 | Registered | 2015 |
| DOMOTEC 0726654 · TMA458254 | 9150-5115 Québec inc. | 9 Electronics | Registered | 1996 |
| DYNATAC 0447925 · TMA251532 | Motorola Trademark Holdings, LLC | 9 Electronics | Registered | 1980 |
| DIANTUS 0414911 · TMA231247 | DIANTUS WATCH S.A. (DIANTUS WATCH AG) (DIANTUS WATCH LTD) | 14 Jewellery | Registered | 1978 |
| Dimatic 2296792 | Yancheng Baiteri Outdoor Products Co. Ltd. | 24 Textiles | Pending | 2023 |
| DYMATEC 2138134 · design | an individual | 12 Vehicles | Pending | 2021 |
| DYNATEX 2026208 | Accumetric, LLC | 1 Chemicals4 Oils5 Pharmaceuticals+3 | Pending | 2020 |
| DOMTECH 1979054 | Domain Tech Inc | 6 Metal7 Machines12 Vehicles | Pending | 2019 |
| DIANETICS 0527100 · TMA308686 | RELIGIOUS TECHNOLOGY CENTER | 9 Electronics14 Jewellery | Registered | 1985 |
| DIANETICS 0380091 · TMA215010 | RELIGIOUS TECHNOLOGY CENTER | 16 Paper41 Education45 Legal | Registered | 1976 |
| deinduser 2289738 · TMA1226412 | an individual | 14 Jewellery | Registered | 2024 |
| DnayDkiy 2223609 · TMA1248858 | Xuzhou Duotong Electronic Commerce Co., Ltd. | 21 Housewares | Registered | 2024 |
| Dentismile 2191343 · TMA1249670 | an individual | 44 Medical | Registered | 2024 |
| DonToGoo 2124581 · TMA1187650 | an individual | 20 Furniture | Registered | 2023 |
| DENTAGRAFIX 2027917 · TMA1112705 | DentaGrafix, LLC | 17 Rubber | Registered | 2021 |