| WORLDSTARS 1772982 · TMA976400 | Worldstars International Inc. | 41 Education | Registered | 2017 |
| WORLDATWORK 2109772 · TMA1149479 · design | WorldatWork | 9 Electronics35 Advertising41 Education | Registered | 2022 |
| WORLDATWORK 1053331 · TMA566112 | WorldatWork | 16 Paper35 Advertising41 Education | Registered | 2002 |
| Worldsoft 1837343 · TMA1008745 | Go World Software Inc. | 42 Science | Registered | 2018 |
| WORLDSHARE 1540642 · TMA851911 | OCLC, INC. | 42 Science | Registered | 2013 |
| WORLDCOM 1437748 · TMA765844 | Worldcom Group Inc. | 35 Advertising | Registered | 2010 |
| WORLDSCOPE 0765898 · TMA453891 | Financial & Risk Organisation Limited | 9 Electronics16 Paper35 Advertising+1 | Registered | 1996 |
| WORLDSENSORS 1097423 · TMA574947 | World Sensors Inc. | 9 Electronics41 Education | Registered | 2003 |
| WORLDSOURCE 0890974 · TMA526055 · design | an individual | 29 Meat | Registered | 2000 |
| WORLDSOURCE 0890973 · TMA550647 | an individual | 29 Meat43 Restaurants | Registered | 2001 |
| Worldmart 2063586 · TMA1174486 | an individual | 35 Advertising | Registered | 2023 |
| WorldAware 1922790 · TMA1136741 | Crisis24, Inc. | 9 Electronics39 Transport42 Science+1 | Registered | 2022 |
| WORLDAWARE 1922256 · TMA1136740 · design | Crisis24, Inc. | 9 Electronics39 Transport42 Science+1 | Registered | 2022 |
| WORLDSENSE 1866590 · TMA1063861 | Google LLC | 9 Electronics | Registered | 2019 |
| WORLDCARE 1843326 · TMA1104641 · design | WorldCare Limited, a Maryland corporation | 38 Telecommunications44 Medical | Registered | 2021 |
| WorldDEM 1588218 · TMA882669 | Airbus Defence and Space GmbH | 9 Electronics35 Advertising38 Telecommunications+3 | Registered | 2014 |
| WORLDART 1548854 · TMA877593 | Streak Products Inc. | 21 Housewares | Registered | 2014 |
| WORLDHOST 1452534 · TMA774833 | go2 Tourism HR Society | 16 Paper41 Education | Registered | 2010 |
| WORLDOX 1426664 · TMA782644 · design | WORLD SOFTWARE CORPORATION | 9 Electronics | Registered | 2010 |
| WORLDOX 1426574 · TMA784766 · design | WORLD SOFTWARE CORPORATION | 9 Electronics | Registered | 2010 |
| WORLDTYPE 1338388 · TMA716311 | Monotype Imaging Inc. | 9 Electronics | Registered | 2008 |
| WORLDMARK 1262424 · TMA667246 | Wyndham Resort Development Corporation | 36 Finance39 Transport43 Restaurants | Registered | 2006 |
| WORLDSHIP 0874439 · TMA664735 | UNITED PARCEL SERVICE OF AMERICA, INC. | 6 Metal9 Electronics12 Vehicles+2 | Registered | 2006 |
| WORLDPROOF 0845435 · TMA522959 | an individual | 18 Leather | Registered | 2000 |
| WORLDCARE 0830056 · TMA485767 · design | WorldCare Limited | 41 Education44 Medical | Registered | 1997 |