| DIGIDENT 1734146 · TMA949217 | MÉSIAL DENTAIRE INC./MESIAL DENTAL INC. personne morale légalement constituée en vertu de la Loi sur les sociétés par actions (Québec) | 10 Medical35 Advertising40 Treatment | Registered | 2016 |
| Dogeden 1271295 · TMA678192 | an individual | 43 Restaurants44 Medical45 Legal | Registered | 2006 |
| digiTAM 2239538 | McMillan-McGee Corporation | 9 Electronics | Pending | 2023 |
| DOGADAN 2102247 | Owner not shown | 5 Pharmaceuticals30 Coffee32 Beer | Pending | 2021 |
| Dissident 2097935 · TMA1152168 | an individual | 34 Tobacco | Registered | 2022 |
| DISSIDENT 2008100 · TMA1283648 | an individual | 32 Beer | Registered | 2025 |
| DISSIDENT 1181871 · TMA618808 | 9724753 CANADA INC. | 18 Leather25 Clothing | Registered | 2004 |
| DIGIDENTITY 1927739 · TMA1133600 | an individual | 9 Electronics42 Science45 Legal | Registered | 2022 |
| DISTINCT 2186858 · TMA1231606 | an individual | 25 Clothing | Registered | 2024 |
| DistinctAndUnique 2137919 · TMA1171604 | 12601958 Canada Inc. | 20 Furniture | Registered | 2023 |
| Destan 2137042 · TMA1253607 | DemKa GmbH | 29 Meat30 Coffee32 Beer | Registered | 2024 |
| DECTEAM 2129817 · TMA1192081 · design | ZHUHAI LEVELSURE TECHNOLOGY CO.LTD. | 9 Electronics | Registered | 2023 |
| DEXTENZA 2128082 · TMA1214161 | Ocular Therapeutix, Inc. | 5 Pharmaceuticals10 Medical44 Medical | Registered | 2023 |
| DISTENTA 2122344 · TMA1219716 | Sine Qua Non, Inc. | 33 Wine | Registered | 2024 |
| Duckietown 2103441 · TMA1211839 | Duckietown, Inc. | 9 Electronics41 Education | Registered | 2023 |
| Dustmakers 2084599 · TMA1170063 | an individual | 9 Electronics25 Clothing | Registered | 2023 |
| DESTINY 2076234 · TMA1162573 | an individual | 26 Sewing | Registered | 2023 |
| DUSTMASTER 2075923 · TMA1140598 | RVT Group Limited | 7 Machines | Registered | 2022 |
| DESTINATIONS 2059139 · TMA1127564 · design | The BridgeCR LLC | 42 Science | Registered | 2022 |
| DAYCATION 2056591 · TMA1172036 | Susanne Lang Fragrance Inc. | 3 Cosmetics | Registered | 2023 |
| deztination 2042330 · TMA1143761 | an individual | 9 Electronics35 Advertising41 Education+1 | Registered | 2022 |
| DESTINATION 1984554 · TMA1200879 | Winfield Solutions, LLC | 1 Chemicals | Registered | 2023 |
| DAYCATION 1967229 · TMA1155890 | Troubled Monk Brewery Ltd. | 32 Beer | Registered | 2022 |
| DISTINCT 1931798 · TMA1122577 | Multy Home LP | 6 Metal19 Building | Registered | 2022 |
| DUCTMATE 1921570 · TMA1106680 | DUCTMATE INDUSTRIES, INC. | 6 Metal | Registered | 2021 |