| ZORM 1626988 · TMA937894 | Zorm International Inc. | 9 Electronics11 Lighting16 Paper+4 | Registered | 2016 |
| ZRM 1401184 · TMA837889 | TLV CO. LTD. | 37 Construction42 Science | Registered | 2012 |
| ZURMEE 2192909 · TMA1269815 | GLAXO GROUP LIMITED | 5 Pharmaceuticals | Registered | 2024 |
| Zerone 2190014 · TMA1238299 | Wuhan Richangjing Network Technology Co., Ltd. | 20 Furniture | Registered | 2024 |
| zuiran 2175929 · TMA1250959 | an individual | 20 Furniture | Registered | 2024 |
| Zerome 2047506 · TMA1283897 | an individual | 21 Housewares | Registered | 2025 |
| ZARON 2006587 · TMA1136334 · design | Zaron Cosmetics Limited | 3 Cosmetics16 Paper44 Medical | Registered | 2022 |
| ZIRAN 1702431 · TMA938117 | 9295-4874 Québec inc. | 3 Cosmetics5 Pharmaceuticals | Registered | 2016 |
| ZORAN 1628034 · TMA907447 | SERVICES OPTOMÉTRIQUES (OPT) INC. | 9 Electronics | Registered | 2015 |
| ZAREEN 1572753 · TMA867678 | BC24 FASHION LTD. | 3 Cosmetics14 Jewellery18 Leather+3 | Registered | 2013 |
| ZEROIN360 1547755 · TMA888353 | Databauhaus Inc. | 9 Electronics41 Education42 Science | Registered | 2014 |
| ZARINA 1528787 · TMA896911 | Fortune Brands Water Innovations LLC | 6 Metal11 Lighting21 Housewares | Registered | 2015 |
| ZERION 1458851 · TMA814603 | Straumann CADCAM GmbH | 5 Pharmaceuticals40 Treatment | Registered | 2011 |
| ZERONA 1454713 · TMA793594 | Therapy Products, Inc. DBA Erchonia Medical | 10 Medical | Registered | 2011 |
| ZEROEMI 1084790 · TMA576524 | NVENT SOLUTIONS (UK) LIMITED | 9 Electronics | Registered | 2003 |
| ZARRIN 1048032 · TMA574337 | an individual | 29 Meat30 Coffee32 Beer | Registered | 2003 |
| ZERON 0552702 · TMA320785 | Rolled Alloys, Ltd. | 6 Metal | Registered | 1986 |
| ZURN 0487133 · TMA277491 · design | ZURCO, INC. | 7 Machines11 Lighting | Registered | 1983 |
| ZURN 0358672 · TMA207859 | ZURCO, INC. | 6 Metal7 Machines8 Hand+3 | Registered | 1975 |
| ZURN 0215416 · UCA43783 | ZURCO, INC. | 6 Metal9 Electronics11 Lighting+1 | Registered | 1952 |
| ZEARNA 2341282 · design | Huizhou Zena Technology Co. Ltd. | 20 Furniture28 Toys | Pending | 2024 |
| ZURNAI 2340874 | Owner not listed | 5 Pharmaceuticals | Pending | 2024 |
| ZORUNNA 2329746 | Owner not listed | 7 Machines | Pending | 2024 |
| ZERION 2322583 | Zerion Inc | 9 Electronics35 Advertising42 Science | Pending | 2024 |
| ZUARINA 2318303 · design | an individual | 29 Meat | Pending | 2024 |