| DEVELOPEDIA 1883223 · TMA1058696 · design | an individual | 35 Advertising41 Education | Registered | 2019 |
| DEVELOPEDIA 1883222 · TMA1067192 | an individual | 35 Advertising41 Education | Registered | 2019 |
| DEVELOPERMEDIA 1600691 · TMA929463 · design | CodeProject Solutions Inc. | 9 Electronics21 Housewares25 Clothing+4 | Registered | 2016 |
| DEVELOPERLINK 1353998 · TMA745735 | an individual | 35 Advertising38 Telecommunications | Registered | 2009 |
| DEEPLEAF 2254088 · TMA1255504 | Gruppo Nutrition Inc. | 5 Pharmaceuticals | Registered | 2024 |
| developex 2164816 · TMA1214484 | an individual | 35 Advertising42 Science | Registered | 2023 |
| DOUBLEPOW 2082968 · TMA1170039 · design | Shenzhen Liangpin Electronic Technology Co. Ltd. | 9 Electronics11 Lighting | Registered | 2023 |
| DOUBLEFF 2056384 · TMA1137637 · design | Jiangmen Promise Sport Products Co. Ltd. | 28 Toys | Registered | 2022 |
| DIABELOOP 1982812 · TMA1233162 | DIABELOOP | 9 Electronics10 Medical41 Education+2 | Registered | 2024 |
| DIABILIVE 1884501 · TMA1092762 | Owner not shown | 9 Electronics10 Medical38 Telecommunications+2 | Registered | 2021 |
| DEVELOPLUS 1812120 · TMA994949 | DEVELOPLUS, INC. a California corporation | 3 Cosmetics | Registered | 2018 |
| DoubleFlex 1746862 · TMA1037396 | BSH Home Appliances Corporation | 7 Machines | Registered | 2019 |
| DOUBLEFLEX 1717864 · TMA980366 | Spiraflex, Inc. | 28 Toys | Registered | 2017 |
| dévelopAS 1698713 · TMA932841 | an individual | 35 Advertising | Registered | 2016 |
| DEVELOPMENT 1433473 · TMA790222 | NAIOP Inc. | 16 Paper36 Finance41 Education | Registered | 2011 |
| DUPLOFLEX 1303056 · TMA695457 | LOHMANN GMBH & CO. KG | 16 Paper | Registered | 2007 |
| DEVLUBE 1083417 · TMA577158 | DEVOL ENGINEERING LIMITED | 12 Vehicles16 Paper17 Rubber | Registered | 2003 |
| DEVELOPERWORKS 1068853 · TMA570985 | INTERNATIONAL BUSINESS MACHINES CORPORATION | 9 Electronics35 Advertising | Registered | 2002 |
| DEVELOPMENT 1050957 · TMA584341 | Camuto IPCo, LLC | 18 Leather25 Clothing | Registered | 2003 |
| DOUBLEFLEX 0810391 · TMA474790 | TRANS CONTINENTAL EQUIPMENT LTD. / ÉQUIPEMENT TRANS CONTINENTAL LTEE. | 6 Metal | Registered | 1997 |
| DEVILBISS 0713974 · TMA433370 | Medical Depot, Inc. | 6 Metal8 Hand9 Electronics+2 | Registered | 1994 |
| DEPILEVE 0664281 · TMA429288 | an individual | 3 Cosmetics | Registered | 1994 |
| DEVILBISS 0074226 · TMDA17978 | Carlisle Fluid Technologies, LLC | 3 Cosmetics7 Machines8 Hand+6 | Registered | 1913 |
| DBLEVIN 2349383 | Shenzhen Ai Nuo Teng Technology Co. Ltd. | 21 Housewares | Pending | 2024 |
| DOUBLEFLExX 2298857 | Owner not listed | 6 Metal7 Machines11 Lighting+2 | Pending | 2023 |