| XEROS 2169987 · TMA1206598 | Sherrill, Inc. | 22 Ropes | Registered | 2023 |
| XHORSE 2089094 · TMA1225829 · design | Shenzhen Xhorse Electronics Co.Ltd | 7 Machines35 Advertising37 Construction | Registered | 2024 |
| XHORSE 2046752 · TMA1224916 · design | Shenzhen Xhorse Electronics Co.Ltd | 6 Metal9 Electronics42 Science | Registered | 2024 |
| XCargo 2007672 · TMA1134831 | Siemens Digital Logistics GmbH | 9 Electronics | Registered | 2022 |
| XCRS 2006127 · TMA1220182 | 1723697 ONTARIO INC. | 9 Electronics37 Construction42 Science | Registered | 2024 |
| XROC 1895965 · TMA1087258 | AUER Packaging GmbH | 7 Machines9 Electronics14 Jewellery+3 | Registered | 2020 |
| XERUS 1840442 · TMA1081742 | RIIP, Inc. | 9 Electronics | Registered | 2020 |
| xRocks 1788344 · TMA1027098 | an individual | 9 Electronics12 Vehicles | Registered | 2019 |
| XEROX 1754232 · TMA966341 | XEROX CORPORATION | 36 Finance41 Education | Registered | 2017 |
| XAERUS 1751119 · TMA958573 | an individual | 4 Oils40 Treatment | Registered | 2016 |
| XERAS 1653263 · TMA953392 | RungePincockMinarco Limited | 9 Electronics35 Advertising36 Finance+5 | Registered | 2016 |
| XARAX 1633183 · TMA972912 | Patex Research and Consulting Ltd. | 6 Metal9 Electronics11 Lighting+7 | Registered | 2017 |
| XRS 1619190 · TMA895042 | XRS CORPORATION | 9 Electronics35 Advertising38 Telecommunications+1 | Registered | 2015 |
| XEROS 1573928 · TMA923165 | Xeros Limited | 1 Chemicals7 Machines11 Lighting+3 | Registered | 2015 |
| XARC 1508607 · TMA818399 · design | an individual | 8 Hand | Registered | 2012 |
| XERESE 1484504 · TMA941446 | an individual | 5 Pharmaceuticals | Registered | 2016 |
| XEROX 1480751 · TMA840130 | XEROX CORPORATION | 36 Finance38 Telecommunications | Registered | 2013 |
| XWERX 1347956 · TMA798210 | Xwerx, Inc. | 9 Electronics11 Lighting20 Furniture | Registered | 2011 |
| XIRRUS 1319443 · TMA751701 | Cambium Networks, Ltd. | 9 Electronics | Registered | 2009 |
| XEROX 1261364 · TMA699490 | XEROX CORPORATION | 9 Electronics16 Paper25 Clothing+3 | Registered | 2007 |
| XSERIES 1081334 · TMA597340 | Lenovo International Limited | 9 Electronics16 Paper42 Science | Registered | 2003 |
| XIRIS 1014188 · TMA545445 | Xiris Automation Inc. | 40 Treatment42 Science | Registered | 2001 |
| XRS 0777594 · TMA461018 | Owner not shown | 12 Vehicles | Registered | 1996 |
| XAREC 0686896 · TMA408054 | Idemitsu Kosan Co., Ltd. | 1 Chemicals | Registered | 1993 |
| XERYUS 0572997 · TMA339800 | Owner not shown | 3 Cosmetics | Registered | 1988 |