| DIRACTION 1546997 · TMA891963 | DirAction USA, Inc. | 9 Electronics35 Advertising42 Science | Registered | 2014 |
| DIRECTION 65 1579569 · TMA902515 | THE MANUFACTURERS LIFE INSURANCE COMPANY | 41 Education | Registered | 2015 |
| 1 DIRECTION 2140549 · TMA1201497 · design | an individual | 10 Medical | Registered | 2023 |
| DIRECTBOOKS 1996559 · TMA1255868 | DirectBooks Technologies LLC | 42 Science | Registered | 2024 |
| DIRECTSENSE 2248980 | Owner not listed | 9 Electronics | Pending | 2023 |
| DIRECTLOAD 1588096 · TMA880418 | Dollar Financial Group, Inc. | 36 Finance | Registered | 2014 |
| DIRECTOR 1529391 · TMA824235 | Thomas & Betts International, Inc. | 9 Electronics | Registered | 2012 |
| DIRECTOR 0891864 · TMA552437 | DDP Specialty Electronic Materials US, LLC | 37 Construction40 Treatment42 Science | Registered | 2001 |
| DIRECTOR 0875486 · TMA527698 | Adobe Inc. | 9 Electronics35 Advertising38 Telecommunications+2 | Registered | 2000 |
| DIRECTOR 0383469 · TMA211640 | Imperial Tobacco Products Limited | 34 Tobacco | Registered | 1976 |
| DIRECTLINE 2308596 | ReBalance Health, Inc. | 1 Chemicals | Pending | 2024 |
| DIRECTINFO 0910017 | an individual | 1 Chemicals2 Paints3 Cosmetics+42 | Pending | 1998 |
| DirectORGANS 1994573 · TMA1109406 | an individual | 9 Electronics | Registered | 2021 |
| DirectConnex 1680883 · TMA923812 | an individual | 35 Advertising44 Medical | Registered | 2015 |
| DIRECTPITCH 2186541 · TMA1256356 · design | SHOKZ (SINGAPORE) PTE. LTD. | 9 Electronics | Registered | 2024 |
| DIRECTTREND 1430082 · TMA765699 | an individual | 9 Electronics | Registered | 2010 |
| DIRECTTOUCH 1378068 · TMA829210 | Fresenius Medical Care Holdings, Inc. | 9 Electronics | Registered | 2012 |
| DIRECTSPEND 1323041 · TMA696133 | Blackhawk Network, Inc. (an Arizona corporation) | 35 Advertising36 Finance | Registered | 2007 |
| DIRECTTRUST 2276563 | DirectTrust.org Inc. | 35 Advertising42 Science | Pending | 2023 |
| DIREKTION 360 2228756 · TMA1252832 · design | Induktion Groupe Conseil Inc. | 42 Science | Registered | 2024 |
| DIREKTION 360 2228741 · TMA1252828 | Induktion Groupe Conseil Inc. | 42 Science | Registered | 2024 |
| DirectDensity 1992075 · TMA1099959 | Siemens Healthcare GmbH | 9 Electronics | Registered | 2021 |
| DIRECTCOMMAND 1786758 · TMA999508 | Ag Leader Technology, Inc. | 9 Electronics | Registered | 2018 |
| DirectConnect 1449231 · TMA794994 | an individual | 10 Medical | Registered | 2011 |
| DIRECTCONNECT 1242772 · TMA671744 | HUNTER DOUGLAS INC. (DELAWARE CORPORATION) | 35 Advertising42 Science | Registered | 2006 |