| DOORES 2314959 · TMA1245709 · design | Owner not listed | 26 Sewing | Registered | 2024 |
| DEWRS 1605223 · TMA868079 | 1047406 Ontario Ltd. | 11 Lighting40 Treatment | Registered | 2013 |
| DOORS 2359380 · design | LSPLASH Inc. | 28 Toys41 Education | Pending | 2024 |
| DOORS 2355109 | LSPLASH Inc. | 28 Toys41 Education | Pending | 2024 |
| DRX 2261739 · TMA1281273 · design | DRX BIOTECH INTERNATIONAL COMPANY LIMITED | 3 Cosmetics | Registered | 2025 |
| Dourose 2249884 · TMA1268782 | an individual | 21 Housewares | Registered | 2024 |
| DURX 2247836 · TMA1267216 | Les Ventes Bergeron Sales Inc. | 11 Lighting35 Advertising | Registered | 2024 |
| DORICCIA 2236178 · TMA1256862 | an individual | 3 Cosmetics | Registered | 2024 |
| DRYKI 2211680 · TMA1244183 | TERRALARK LLC | 24 Textiles | Registered | 2024 |
| DerryK 2207844 · TMA1265476 | Aliciainc Corporation | 3 Cosmetics21 Housewares25 Clothing+1 | Registered | 2024 |
| DORAJI 2198346 · TMA1238370 | 1000008519 ONTARIO INC. | 43 Restaurants | Registered | 2024 |
| DROSE 2188970 · TMA1232792 | an individual | 9 Electronics26 Sewing | Registered | 2024 |
| DUREX 2170098 · TMA1274085 · design | LRC Products Limited | 3 Cosmetics5 Pharmaceuticals10 Medical | Registered | 2024 |
| Doreso 2166666 · TMA1219880 | an individual | 9 Electronics | Registered | 2024 |
| Dr6ix 2159063 · TMA1209992 | Dr. Martin Jugenburg Medical Professional Corporation | 44 Medical | Registered | 2023 |
| Drcowu 2156890 · TMA1208810 | Shenzhen Gelu Electronic Commerce Co. Ltd. | 8 Hand9 Electronics | Registered | 2023 |
| DIRIGO 2156608 · TMA1250877 | an individual | 14 Jewellery18 Leather25 Clothing | Registered | 2024 |
| DRAX 2154229 · TMA1275722 · design | Drax Corporate Limited | 1 Chemicals4 Oils6 Metal+13 | Registered | 2024 |
| DRACCU 2153616 · TMA1208665 · design | ASSURE TECH. (HANGZHOU) CO. LTD | 5 Pharmaceuticals10 Medical | Registered | 2023 |
| DEROS 2136852 · TMA1205085 | Mirka Ltd | 7 Machines | Registered | 2023 |
| DARCHE 2126905 · TMA1280530 | Charles Parsons (Holdings) Pty Limited | 18 Leather20 Furniture22 Ropes+1 | Registered | 2025 |
| DARAC 2113752 · TMA1195471 · design | LA FROMAGERIE VICTORIA INC. | 29 Meat | Registered | 2023 |
| DARAC 2110788 · TMA1194687 | LA FROMAGERIE VICTORIA INC. | 29 Meat | Registered | 2023 |
| DRAX 2101680 · TMA1275632 | Drax Corporate Limited | 1 Chemicals4 Oils6 Metal+12 | Registered | 2024 |
| DAROGE 2100556 · TMA1222033 · design | an individual | 21 Housewares | Registered | 2024 |