| DALISA 2163382 | MULTI-PORTIONS INC. | 29 Meat | Pending | 2022 |
| DALS 1930241 · TMA1148336 | DALS LIGHTING INC. | 9 Electronics11 Lighting | Registered | 2022 |
| DALIC 0506508 · TMA289379 | SIFCO APPLIED SURFACE CONCEPTS, LLC an Ohio limited liability company | 1 Chemicals9 Electronics40 Treatment | Registered | 1984 |
| DAILIES 0784390 · TMA495816 | Alcon Inc. | 9 Electronics | Registered | 1998 |
| DALOGS 2156801 · TMA1197110 | an individual | 39 Transport | Registered | 2023 |
| DILISS 2110279 · TMA1191913 | Shenzhen Canyu Technology Co. Ltd. | 28 Toys | Registered | 2023 |
| Deliss 2018785 · TMA1133234 | 9395-2570 Québec inc. | 29 Meat32 Beer | Registered | 2022 |
| DELISÁ 1925543 · TMA1103489 | Terra Nostra Import/Export Inc. | 29 Meat | Registered | 2021 |
| DELISH 1916663 · TMA1145218 · design | Hearst Communications, Inc. | 8 Hand9 Electronics21 Housewares | Registered | 2022 |
| DUALOS 1711374 · TMA983875 | Light & Wonder, Inc. | 28 Toys | Registered | 2017 |
| DIALXS 1466649 · TMA839543 · design | an individual | 35 Advertising36 Finance38 Telecommunications+2 | Registered | 2013 |
| DALKIA 1235778 · TMA663833 | Owner not shown | 6 Metal7 Machines9 Electronics+11 | Registered | 2006 |
| DALLAS 0511647 · TMA298776 | Warner Bros. Entertainment Inc. (a Delaware Corporation) | 35 Advertising41 Education | Registered | 1985 |
| DALICY 2349065 · design | an individual | 9 Electronics35 Advertising41 Education+1 | Pending | 2024 |
| DILS 2120876 · TMA1141507 · design | an individual | 36 Finance | Registered | 2022 |
| DILS 2078889 · TMA1141432 | an individual | 36 Finance | Registered | 2022 |
| DALOG 2067165 · TMA1204827 | an individual | 9 Electronics37 Construction41 Education+1 | Registered | 2023 |
| DALLX 2059932 · TMA1149252 | DALLX Inc. | 18 Leather25 Clothing28 Toys | Registered | 2022 |
| DLYS 2039073 · TMA1282018 · design | ROSE LIFESCIENCE INC. | 3 Cosmetics5 Pharmaceuticals29 Meat+8 | Registered | 2025 |
| DLSS 1816346 · TMA1034874 | LOCKHEED MARTIN CORPORATION | 9 Electronics | Registered | 2019 |
| DDLS 1737656 · TMA1028910 | Magic Leap, Inc. | 9 Electronics | Registered | 2019 |
| DELOS 1717388 · TMA956326 | Delos Living LLC | 9 Electronics37 Construction40 Treatment+2 | Registered | 2016 |
| DIALS 1711786 · TMA956676 | DAYDIALS, INC. | 9 Electronics | Registered | 2016 |
| DIALS 1711782 · TMA941627 · design | DAYDIALS, INC. | 9 Electronics | Registered | 2016 |
| DLS 1482543 · TMA806710 | St. Joseph Print Group Inc. | 35 Advertising38 Telecommunications40 Treatment | Registered | 2011 |