| WORLDCAT 0846524 · TMA496962 | OCLC, INC. | 9 Electronics38 Telecommunications39 Transport+2 | Registered | 1998 |
| WORLDQUANT 2213411 · TMA1231783 | WorldQuant, LLC | 36 Finance | Registered | 2024 |
| WORLDSHARE 1540642 · TMA851911 | OCLC, INC. | 42 Science | Registered | 2013 |
| WORLDCARTE 1176884 · TMA668410 | SMARTE CARTE, INC. | 12 Vehicles | Registered | 2006 |
| Worldmart 2063586 · TMA1174486 | an individual | 35 Advertising | Registered | 2023 |
| Worldia 1981568 · TMA1138258 | an individual | 39 Transport43 Restaurants | Registered | 2022 |
| WORLDIA 1955932 · TMA1119978 · design | Beijing Worldia Diamond Tools Co. Ltd. | 7 Machines8 Hand14 Jewellery+2 | Registered | 2022 |
| WORLDCARE 1843326 · TMA1104641 · design | WorldCare Limited, a Maryland corporation | 38 Telecommunications44 Medical | Registered | 2021 |
| Worldsoft 1837343 · TMA1008745 | Go World Software Inc. | 42 Science | Registered | 2018 |
| WORLDCELL 1730437 · TMA998417 | WISE MANUFACTURING, INC. | 17 Rubber | Registered | 2018 |
| WORLDPAY 1669323 · TMA966165 · design | Worldpay Limited, Incorporated under the laws of England and Wales | 7 Machines9 Electronics16 Paper+6 | Registered | 2017 |
| WORLDPAY 1668230 · TMA966163 | Worldpay Limited, Incorporated under the laws of England and Wales | 16 Paper35 Advertising36 Finance+4 | Registered | 2017 |
| WORLDPAY 1573754 · TMA888385 | Worldpay Limited | 7 Machines9 Electronics16 Paper+2 | Registered | 2014 |
| WORLDART 1548854 · TMA877593 | Streak Products Inc. | 21 Housewares | Registered | 2014 |
| WORLDPLAY 1506135 · TMA820955 | WORLDPLAY (BARBADOS) INC. | 9 Electronics | Registered | 2012 |
| WORLDPLAY 1471885 · TMA824227 | WORLDPLAY (BARBADOS) INC. | 38 Telecommunications41 Education45 Legal | Registered | 2012 |
| WORLDHOST 1452534 · TMA774833 | go2 Tourism HR Society | 16 Paper41 Education | Registered | 2010 |
| WORLDCOM 1437748 · TMA765844 | Worldcom Group Inc. | 35 Advertising | Registered | 2010 |
| WORLDPAC 1200984 · TMA625377 | WORLDPAC, INC. | 35 Advertising | Registered | 2004 |
| WORLDPAC 1200983 · TMA625402 · design | WORLDPAC, INC. | 35 Advertising | Registered | 2004 |
| WORLDSHIP 0874439 · TMA664735 | UNITED PARCEL SERVICE OF AMERICA, INC. | 6 Metal9 Electronics12 Vehicles+2 | Registered | 2006 |
| WORLDLAW 0836487 · TMA491527 | James M. Klotz c/o/b as Klotz & Co. | 45 Legal | Registered | 1998 |
| WORLDCARE 0830056 · TMA485767 · design | WorldCare Limited | 41 Education44 Medical | Registered | 1997 |
| WORLDCARE 0819498 · TMA483912 | WorldCare Limited | 41 Education44 Medical | Registered | 1997 |
| WORLDCARD 0793337 · TMA532165 | CenturyLink Communications, LLC | 36 Finance38 Telecommunications | Registered | 2000 |