| DAYTON 1770007 · TMA1007615 · design | Dayton Electric Manufacturing Co. | 6 Metal7 Machines8 Hand+2 | Registered | 2018 |
| DAYTON 1586910 · TMA900200 | DAYTON ELECTRIC MANUFACTURING COMPANY | 1 Chemicals3 Cosmetics6 Metal+9 | Registered | 2015 |
| DAYTON 1259447 · TMA792915 | Dayton Studios Ltd. | 8 Hand9 Electronics12 Vehicles+6 | Registered | 2011 |
| DAYTON 1182716 · TMA747750 | Dayton Electric Manufacturing Co. | 7 Machines | Registered | 2009 |
| DAYTON 0794464 · TMA473309 | ELKAY MANUFACTURING COMPANY an Delaware corporation | 11 Lighting | Registered | 1997 |
| DUTTON 0693623 · TMA402743 | Penguin Random House LLC | 16 Paper | Registered | 1992 |
| DoteOn 2352417 | Owner not listed | 9 Electronics42 Science | Pending | 2024 |
| Dutyone 2086219 · TMA1168742 | Shenzhen Lepower Electronic Co., Ltd. | 9 Electronics | Registered | 2023 |
| DAYTIME 1798072 · TMA983923 | Lagunitas Brewing Company | 32 Beer | Registered | 2017 |
| DAYTONA 1605764 · TMA910251 | OPTOS PLC | 10 Medical | Registered | 2015 |
| DAYTONA 1242423 · TMA700867 | INTERNATIONAL SPEEDWAY CORPORATION | 3 Cosmetics | Registered | 2007 |
| DAYTONA 1150930 · TMA649077 | FCA US LLC | 12 Vehicles | Registered | 2005 |
| DAYTONA 0762383 · TMA519231 | INTERNATIONAL SPEEDWAY CORPORATION | 41 Education | Registered | 1999 |
| DAYTONA 0707112 · TMA536421 · design | INTERNATIONAL SPEEDWAY CORPORATION | 6 Metal9 Electronics14 Jewellery+7 | Registered | 2000 |
| DAYTONA 0707003 · TMA520203 | INTERNATIONAL SPEEDWAY CORPORATION | 9 Electronics14 Jewellery16 Paper+7 | Registered | 1999 |
| DIATONE 0684406 · TMA399007 · design | SAKATA INKUSU KABUSHIKIGAISHA (SAKATA INX CORPORATION) | 2 Paints | Registered | 1992 |
| DAYTONA 0600762 · TMA352203 | ROLEX SA | 14 Jewellery | Registered | 1989 |
| DAYTONA 0495344 · TMA288544 | FCA US LLC | 12 Vehicles | Registered | 1984 |
| DIATONE 0285211 · TMA149236 | MITSUBISHI ELECTRIC CORPORATION | 7 Machines8 Hand9 Electronics+2 | Registered | 1967 |
| Daytain 2347938 | Dongguan Handing Technology Co. Ltd | 25 Clothing | Pending | 2024 |
| DATUM 2236588 · TMA1251601 | Owner not listed | 11 Lighting | Registered | 2024 |
| dodoin 2214157 · TMA1249733 | Nanjing Duoduo Trading Co., Ltd. | 25 Clothing | Registered | 2024 |
| Didomi 2138539 · TMA1225986 | an individual | 9 Electronics35 Advertising41 Education+2 | Registered | 2024 |
| diatom 2134014 · TMA1175989 | Jackson Family Farms, LLC | 33 Wine | Registered | 2023 |
| DIADEM 2116160 · TMA1175124 | an individual | 10 Medical44 Medical | Registered | 2023 |