| XSTREAM 2058493 · TMA1154163 | an individual | 7 Machines | Registered | 2022 |
| XSTREME 1790148 · TMA1016175 | Ecolo Odor Control Technologies Inc. | 5 Pharmaceuticals11 Lighting | Registered | 2019 |
| xStream 1493120 · TMA864821 | Virtustream, LLC | 9 Electronics37 Construction42 Science | Registered | 2013 |
| XSTREAM 1379974 · TMA739306 | Digi International Inc. a Delaware Corporation | 9 Electronics | Registered | 2009 |
| XSTREAM 1329212 · TMA701519 | ROSEMOUNT INC. | 9 Electronics | Registered | 2007 |
| XSTREAM 1266174 · TMA708268 | Hayward Industries, Inc. (a New Jersey corporation) | 11 Lighting | Registered | 2008 |
| XSTREAM 1182233 · TMA626667 · design | K&N ENGINEERING, INC. a California Corporation | 7 Machines | Registered | 2004 |
| XSTREAM 1166742 · TMA591425 | K&N ENGINEERING, INC. a California Corporation | 7 Machines | Registered | 2003 |
| XTRAIM 2111425 · TMA1229271 | THALES LAS FRANCE SAS | 9 Electronics13 Firearms | Registered | 2024 |
| XTRM 1298506 · TMA684314 | OLYMEL S.E.C. | 29 Meat35 Advertising | Registered | 2007 |
| XTREM 1225431 · TMA648267 | OLYMEL S.E.C. | 29 Meat35 Advertising40 Treatment | Registered | 2005 |
| XTRM 1205669 · TMA628949 · design | OLYMEL S.E.C. | 29 Meat | Registered | 2004 |
| XSTRAND 1325050 · TMA825076 | Owens Corning Intellectual Capital LLC | 22 Ropes | Registered | 2012 |
| XTREME 2154758 · TMA1192166 · design | TATLAB Corporation | 2 Paints | Registered | 2023 |
| XTREME 2053415 · TMA1224926 | Xtreme Manufacturing, LLC | 7 Machines12 Vehicles | Registered | 2024 |
| XTRON 1975655 · TMA1149990 | an individual | 5 Pharmaceuticals | Registered | 2022 |
| Xtreme 1963097 · TMA1146306 | Xtreme Wear Parts Inc | 7 Machines | Registered | 2022 |
| XYTRON 1901666 · TMA1123862 | an individual | 1 Chemicals17 Rubber | Registered | 2022 |
| XTREME 1898604 · TMA1096748 · design | A. K. TRADERS LTD. | 9 Electronics25 Clothing34 Tobacco | Registered | 2021 |
| XTREME 1842774 · TMA1011020 · design | DISTAM INC. | 6 Metal7 Machines9 Electronics+2 | Registered | 2018 |
| XTREME 1783213 · TMA973550 | Sunrise Medical (US) LLC | 12 Vehicles | Registered | 2017 |
| XTREEM 1672471 · TMA960889 · design | Swann Communications Ltd. | 28 Toys | Registered | 2017 |
| XTREME 1636451 · TMA898514 | MTD Products Inc. | 7 Machines | Registered | 2015 |
| XTREME 1615802 · TMA875085 | Winter Equipment Company, Inc. | 7 Machines | Registered | 2014 |
| XTREME 1549111 · TMA968570 | Marine Acquisition (US) Incorporated | 12 Vehicles | Registered | 2017 |