| XPORT 1227825 · TMA694568 | LANTRONIX, INC. (a Delaware Corporation) | 9 Electronics | Registered | 2007 |
| XPORT 1105108 · TMA582612 | an individual | 6 Metal7 Machines9 Electronics | Registered | 2003 |
| XPRT 2252459 · TMA1270245 | Owner not listed | 35 Advertising | Registered | 2024 |
| Xprotect 2243038 · TMA1260170 | Owner not shown | 9 Electronics | Registered | 2024 |
| xbrtaia 2202937 · TMA1239889 | Wolebeisi Electronic Commerce (Xiamen) Co., Ltd. | 12 Vehicles | Registered | 2024 |
| XPRITE 2166437 · TMA1219867 | XTREME INC. | 6 Metal12 Vehicles | Registered | 2024 |
| XPERTJET 1983557 · TMA1117983 · design | Mutoh Industries Ltd. | 7 Machines9 Electronics | Registered | 2022 |
| XBRAID 1981374 · TMA1148700 | STRYKER CORPORATION | 10 Medical | Registered | 2022 |
| xOffroad 1788332 · TMA1017810 | an individual | 9 Electronics12 Vehicles | Registered | 2019 |
| XPRT 1772327 · TMA1029446 | 5.11, Inc. (a California corporation) | 25 Clothing | Registered | 2019 |
| XBORDERS 1735509 · TMA1028564 | XBorders, LLC | 45 Legal | Registered | 2019 |
| XBRIDGE 1571875 · TMA842519 | Waters Technologies Corporation | 9 Electronics | Registered | 2013 |
| XPERTHR 1569155 · TMA892992 | LNRS Data Services Limited | 9 Electronics16 Paper35 Advertising+1 | Registered | 2014 |
| XpertSDD 1567047 · TMA881712 | Evident Corporation | 9 Electronics | Registered | 2014 |
| XpertPiN 1567045 · TMA881773 | Evident Corporation | 9 Electronics | Registered | 2014 |
| XPERT 1566395 · TMA895085 | Shem, LLC | 12 Vehicles | Registered | 2015 |
| XPARTICLE 1486344 · TMA823864 | an individual | 42 Science | Registered | 2012 |
| xpertdoc 1456673 · TMA789132 | TECHNOLOGIES XPERTDOC INC. | 9 Electronics35 Advertising41 Education+1 | Registered | 2011 |
| XPRT 1446744 · TMA784762 | STRYKER CORPORATION | 10 Medical | Registered | 2010 |
| XPERT 1433370 · TMA798291 | Olin Corporation, a corporation of the State of Virginia | 13 Firearms | Registered | 2011 |
| XPEREDON 1424967 · TMA837652 | an individual | 9 Electronics36 Finance38 Telecommunications | Registered | 2012 |
| XPARTS 1407506 · TMA778496 | Voxx International Corporation | 9 Electronics12 Vehicles | Registered | 2010 |
| XBRITE 1388052 · TMA792868 · design | Britemore Lighting Inc. | 9 Electronics11 Lighting | Registered | 2011 |
| XPERT 1342976 · TMA765169 | CEPHEID (A CALIFORNIA CORPORATION) | 9 Electronics10 Medical | Registered | 2010 |
| XPERT 0294463 · TMA169206 | Owner not shown | 1 Chemicals2 Paints | Registered | 1970 |