| DATALOGIC 1420463 · TMA813591 · design | DATALOGIC S.P.A. a joint stock company | 7 Machines9 Electronics11 Lighting+3 | Registered | 2011 |
| DATALOGIC 1109948 · TMA627508 · design | DATALOGIC S.P.A. a joint stock company | 9 Electronics16 Paper37 Construction | Registered | 2004 |
| DATALOK 0745444 · TMA455792 | DATA Communications Management Corp./Gestion Des Communications DATA Corp. | 16 Paper40 Treatment | Registered | 1996 |
| DATALEX 2294808 | Lex Tec Inc | 9 Electronics | Pending | 2023 |
| DataLign 2159727 | an individual | 9 Electronics38 Telecommunications42 Science+1 | Pending | 2021 |
| DeadlySlob 2228668 · TMA1253852 | an individual | 35 Advertising38 Telecommunications41 Education | Registered | 2024 |
| DoodleJamz 2146550 · TMA1246249 | Plan C, LLC | 28 Toys | Registered | 2024 |
| Doodlekids 2107989 · TMA1166066 | an individual | 25 Clothing | Registered | 2023 |
| DAEDALUS 2005187 · TMA1108282 · design | C4 Therapeutics, Inc. | 42 Science | Registered | 2021 |
| #DETAILSMATTER 1973686 · TMA1262180 · design | Midea Group Co., Ltd. | 7 Machines11 Lighting | Registered | 2024 |
| DOODLES 1852612 · TMA1056864 | an individual | 6 Metal9 Electronics16 Paper+5 | Registered | 2019 |
| DEADLOCK 1652477 · TMA896705 | Shulton, Inc. | 3 Cosmetics | Registered | 2015 |
| DOODLES 1639863 · TMA919846 · design | JO-ANN STORES, LLC | 24 Textiles | Registered | 2015 |
| DETAILS 1579199 · TMA886181 · design | Prym Consumer USA Inc. | 20 Furniture26 Sewing | Registered | 2014 |
| DOODLEZZ 1544810 · TMA880763 | an individual | 9 Electronics12 Vehicles16 Paper+1 | Registered | 2014 |
| DETAILS 1516178 · TMA867253 | Steelcase Inc. | 20 Furniture | Registered | 2013 |
| DETLOGIX 1437382 · TMA824506 | Edwards Lifesciences Corporation | 10 Medical | Registered | 2012 |
| DAEDALUS 1360908 · TMA741244 | LUTRON ELECTRONICS CO., INC. | 11 Lighting | Registered | 2009 |
| DETAILS 1179964 · TMA647265 | Thread Collective Inc. | 9 Electronics14 Jewellery16 Paper+3 | Registered | 2005 |
| DOODLESPIEL 1125649 · TMA587017 | CANADIAN SOCIETY OF EXPLORATION GEOPHYSICISTS | 41 Education | Registered | 2003 |
| DETAILS 1100301 · TMA574494 | Advance Magazine Publishers Inc. c/o/b/a Fairchild Publications | 35 Advertising38 Telecommunications41 Education | Registered | 2003 |
| ·DETAILS· 0779812 · TMA482636 · design | COMET STRIP ENTERPRISES LTD. | 3 Cosmetics4 Oils8 Hand+8 | Registered | 1997 |
| DETAILS 0777989 · TMA467980 | Steelcase Inc. | 7 Machines9 Electronics11 Lighting+2 | Registered | 1996 |
| DETAILS 0741409 · TMA439249 | AG Hair Ltd. | 3 Cosmetics | Registered | 1995 |
| DETAILS 0606753 · TMA358350 | Advance Magazine Publishers Inc. c/o/b/a Fairchild Publications | 16 Paper | Registered | 1989 |