| ZONAR 1879979 · TMA1159649 · design | Zonar Systems, Inc. | 9 Electronics35 Advertising38 Telecommunications+3 | Registered | 2023 |
| ZONAR 1215153 · TMA687374 | Zonar Systems, Inc (a Wshington corporation) | 9 Electronics35 Advertising42 Science | Registered | 2007 |
| ZONEAIRE 0777735 · TMA475085 | Hill-Rom Services, Inc. (an Indiana corporation) | 10 Medical | Registered | 1997 |
| ZONEAIRE 0637691 · TMA384527 | Friedrich Air Conditioning, LLC | 11 Lighting | Registered | 1991 |
| ZunaRai 1797909 · TMA1008083 | an individual | 41 Education42 Science | Registered | 2018 |
| Zinarii 2355151 | an individual | 18 Leather | Pending | 2024 |
| ZIUMIER 2264124 · TMA1284809 | an individual | 9 Electronics | Registered | 2025 |
| ZYNERY 2264113 · TMA1283352 | an individual | 26 Sewing | Registered | 2025 |
| ZIMMER 2174640 · TMA1206633 · design | Sandsnake Ventures, Inc. | 11 Lighting | Registered | 2023 |
| ZIMURA 2149855 · TMA1234432 | IVERIC bio, Inc. | 5 Pharmaceuticals42 Science | Registered | 2024 |
| ZIONOR 2036824 · TMA1163291 · design | Shenzhen Guohedongli Technology Co. Ltd | 9 Electronics25 Clothing28 Toys | Registered | 2023 |
| ZINIER 2003618 · TMA1143463 | Zinier Inc. | 9 Electronics42 Science | Registered | 2022 |
| ZOOMAROO 1973290 · TMA1240707 · design | Innovative Vending Solutions LLC | 39 Transport | Registered | 2024 |
| ZOOMAROO 1973289 · TMA1240706 | Innovative Vending Solutions LLC | 39 Transport | Registered | 2024 |
| ZUMMR 1951079 · TMA1285109 | Weeb Enterprises, LLC | 1 Chemicals5 Pharmaceuticals6 Metal+5 | Registered | 2025 |
| Zinrai 1937366 · TMA1158514 | FUJITSU LIMITED | 9 Electronics35 Advertising37 Construction+3 | Registered | 2022 |
| ZOOMER 1932018 · TMA1211523 | ZoomerMedia Limited | 35 Advertising41 Education44 Medical | Registered | 2023 |
| ZEMORAH 1875285 · TMA1182242 | an individual | 35 Advertising36 Finance37 Construction+3 | Registered | 2023 |
| ZEMORA 1754900 · TMA1056208 | Brasstech, Inc. | 6 Metal11 Lighting20 Furniture+1 | Registered | 2019 |
| ZIMURA 1684240 · TMA1035635 | IVERIC bio, Inc. | 5 Pharmaceuticals | Registered | 2019 |
| ZOOMER 1642668 · TMA930332 | ZoomerMedia Limited | 35 Advertising | Registered | 2016 |
| ZOOMER 1589928 · TMA893557 | ZoomerMedia Limited | 28 Toys | Registered | 2015 |
| ZOOMER 1484124 · TMA942023 | ZoomerMedia Limited | 9 Electronics16 Paper36 Finance | Registered | 2016 |
| ZENORA 1471837 · TMA788319 | SHIMANO INC. | 28 Toys | Registered | 2011 |
| ZOOMER 1458735 · TMA922188 | ZoomerMedia Limited | 9 Electronics16 Paper18 Leather+11 | Registered | 2015 |