| DirectORGANS 1994573 · TMA1109406 | an individual | 9 Electronics | Registered | 2021 |
| DIRECTLOAD 1588096 · TMA880418 | Dollar Financial Group, Inc. | 36 Finance | Registered | 2014 |
| DirectConnex 1680883 · TMA923812 | an individual | 35 Advertising44 Medical | Registered | 2015 |
| DIRECTIONS 1613959 · TMA989469 | SERTA INC. | 20 Furniture | Registered | 2018 |
| DirectConnect 1449231 · TMA794994 | an individual | 10 Medical | Registered | 2011 |
| DIRECTTREND 1430082 · TMA765699 | an individual | 9 Electronics | Registered | 2010 |
| DIRECTSPEND 1323041 · TMA696133 | Blackhawk Network, Inc. (an Arizona corporation) | 35 Advertising36 Finance | Registered | 2007 |
| DIRECTCONNECT 1242772 · TMA671744 | HUNTER DOUGLAS INC. (DELAWARE CORPORATION) | 35 Advertising42 Science | Registered | 2006 |
| DIRECTscan 2364059 | IMPLANT DIRECT SYBRON INTERNATIONAL LLC | 10 Medical | Pending | 2024 |
| DIRECTCHECK 2157192 · TMA1228882 | Accriva Diagnostics, Inc. | 1 Chemicals5 Pharmaceuticals | Registered | 2024 |
| DirectWall 2152625 · TMA1247983 | an individual | 9 Electronics | Registered | 2024 |
| DIRECTSOURCE 2144866 · TMA1187746 | SupplyFrame, Inc. | 42 Science | Registered | 2023 |
| DIRECTBOOKS 1996559 · TMA1255868 | DirectBooks Technologies LLC | 42 Science | Registered | 2024 |
| DIRECTME 1944473 · TMA1239144 | an individual | 9 Electronics | Registered | 2024 |
| DIRECTISSIMA 1815516 · TMA1011497 | Whitetooth Brewing Company Ltd. | 32 Beer | Registered | 2018 |
| DIRECTCHEQUE 1812969 · TMA991877 | BANK OF MONTREAL | 36 Finance | Registered | 2018 |
| DIRECTATTACK 1716546 · TMA939235 | Tyco Fire & Security GmbH | 1 Chemicals | Registered | 2016 |
| DIRECTATTACK 1714881 · TMA939224 | Tyco Fire & Security GmbH | 1 Chemicals | Registered | 2016 |
| DIRECTOFFICE 1622823 · TMA968156 | CSR Imaging US, LP | 9 Electronics | Registered | 2017 |
| DIRECTION 65 1579569 · TMA902515 | THE MANUFACTURERS LIFE INSURANCE COMPANY | 41 Education | Registered | 2015 |
| DIRACTION 1546997 · TMA891963 | DirAction USA, Inc. | 9 Electronics35 Advertising42 Science | Registered | 2014 |
| DIRECTOR 1529391 · TMA824235 | Thomas & Betts International, Inc. | 9 Electronics | Registered | 2012 |
| DIRECTA 1501747 · TMA829055 | an individual | 5 Pharmaceuticals10 Medical44 Medical | Registered | 2012 |
| DIRECTLAB 1478826 · TMA797080 | Directlab Network Inc. | 9 Electronics40 Treatment | Registered | 2011 |
| DIRECTCU 1437737 · TMA821732 | Canadian Credit Union Association Cooperative | 9 Electronics14 Jewellery16 Paper+7 | Registered | 2012 |