| DESKWORKS 0608799 · TMA360200 | SYSTEM SUPPORT PRODUCTS, INC. | 9 Electronics | Registered | 1989 |
| DocuWorks 2189122 · TMA1278897 | FUJIFILM Business Innovation Kabushiki Kaisha (FUJIFILM Business Innovation Corp.) | 9 Electronics42 Science | Registered | 2024 |
| DocuWorks 1154071 · TMA629046 | FUJIFILM Business Innovation Kabushiki Kaisha, also trading as FUJIFILM Business Innovation Corp. | 9 Electronics | Registered | 2004 |
| DocuWorks 1151351 · TMA649603 | FUJIFILM Business Innovation Kabushiki Kaisha, also trading as FUJIFILM Business Innovation Corp. | 9 Electronics | Registered | 2005 |
| DISAWORKS 1291015 · TMA709696 | DISA GLOBAL SOLUTIONS, INC. | 35 Advertising | Registered | 2008 |
| DECKERS 0402523 · TMA232394 · design | DECKERS OUTDOOR CORPORATION (A DELAWARE CORPORATION) | 25 Clothing | Registered | 1979 |
| Decorus 2291485 | Guangzhou Buythem Imp. & Exp. Co. Ltd. | 25 Clothing | Pending | 2023 |
| DOCKERS 2208680 · TMA1241617 | Levi Strauss & Co. | 3 Cosmetics | Registered | 2024 |
| DECCOREX 1822191 · TMA1079013 · design | an individual | 6 Metal10 Medical14 Jewellery+6 | Registered | 2020 |
| DECOROCK 1647668 · TMA892418 | DECOROCK INC. | 2 Paints35 Advertising37 Construction | Registered | 2014 |
| DOCKERS 0888843 · TMA531907 · design | LEVI STRAUSS NOVA SCOTIA ULC | 14 Jewellery16 Paper18 Leather+5 | Registered | 2000 |
| DOCKERS 0638742 · TMA382325 | LEVI STRAUSS NOVA SCOTIA ULC | 9 Electronics14 Jewellery16 Paper+6 | Registered | 1991 |
| DECKRKAT 2270973 | Owner not listed | 7 Machines | Pending | 2023 |
| DECKCORRECT 1649172 · TMA951881 | SWIMC LLC | 2 Paints | Registered | 2016 |
| DECREASE 2151062 · TMA1256183 · design | Brolli Group Limited | 3 Cosmetics | Registered | 2024 |
| DOCSEARCH 2140169 · TMA1183188 | Doctor Evidence, LLC | 42 Science | Registered | 2023 |
| 6° 6 DEGREES 2044684 · TMA1204707 · design | 11753649 Canada Inc. dba "6 Degrees Holdings" | 36 Finance | Registered | 2023 |
| DASROQ 2042859 · TMA1146861 | GLAXO GROUP LIMITED | 5 Pharmaceuticals | Registered | 2022 |
| DESROQ 2042858 · TMA1146860 | GLAXO GROUP LIMITED | 5 Pharmaceuticals | Registered | 2022 |
| DUSROQ 2042857 · TMA1146859 | GLAXO GROUP LIMITED | 5 Pharmaceuticals | Registered | 2022 |
| 37 DEGREES 2029952 · TMA1143622 · design | 37 Degrees Fashion Trading Ltd | 9 Electronics14 Jewellery18 Leather+1 | Registered | 2022 |
| 37 Degrees 2014649 · TMA1135615 | 37 Degrees Fashion Trading Ltd | 9 Electronics14 Jewellery18 Leather+1 | Registered | 2022 |
| DOGROOK 2011140 · TMA1156000 | DAVAON LIMITED | 9 Electronics | Registered | 2022 |
| decorstar 1976096 · TMA1134577 | Shenzhen Sangshen E-commerce Co. Ltd. | 11 Lighting | Registered | 2022 |
| 4DEGREES 1950181 · TMA1125219 | VANTAGE DATA CENTERS CANADA, LIMITED PARTNERSHIP | 35 Advertising36 Finance42 Science | Registered | 2022 |