| YBY 2104131 · TMA1284234 | an individual | 33 Wine | Registered | 2025 |
| YF 1748812 · TMA1002716 · design | Yanfeng Automotive Trim Systems Co. Ltd. | 9 Electronics12 Vehicles | Registered | 2018 |
| YF 1748810 · TMA1002678 · design | Yanfeng Automotive Trim Systems Co. Ltd. | 9 Electronics12 Vehicles | Registered | 2018 |
| YBW 1424201 · TMA794473 | THE CALGARY AIRPORT AUTHORITY a body corporate incorporated under the Regional Airports Authorities Act (Alberta) | 35 Advertising36 Finance39 Transport | Registered | 2011 |
| YBW 1424194 · TMA794472 · design | THE CALGARY AIRPORT AUTHORITY a body corporate incorporated under the Regional Airports Authorities Act (Alberta) | 35 Advertising36 Finance39 Transport | Registered | 2011 |
| YB 1087042 · TMA615899 | The Yield Book Inc. | 38 Telecommunications42 Science | Registered | 2004 |
| YIF 2352911 · design | Owner not listed | 6 Metal | Pending | 2024 |
| YF 2291479 · design | Anhui Yingfa Ruineng Technology Co.Ltd | 9 Electronics | Pending | 2023 |
| YUPO 2244279 · TMA1263152 · design | Owner not listed | 16 Paper | Registered | 2024 |
| YeewayVeh 2233954 · TMA1264158 | Shenzhen Duyun Technology Co. Ltd. | 12 Vehicles21 Housewares | Registered | 2024 |
| YOOPAI 2230330 · TMA1252982 | Shenzhen Hucheng Technology Co. Ltd. | 7 Machines | Registered | 2024 |
| YOOPAI 2230329 · TMA1252981 | Shenzhen Hucheng Technology Co. Ltd. | 6 Metal | Registered | 2024 |
| YEAUPE 2210053 · TMA1241734 | Caoxian Yuai Network Technology Co., Ltd. | 11 Lighting | Registered | 2024 |
| Yiupea 2181676 · TMA1229575 | Shenzhen Fengxingda Technology Co. Ltd. | 21 Housewares | Registered | 2024 |
| YPB 2169512 · TMA1211290 · design | Abercrombie & Fitch Trading Co. | 18 Leather | Registered | 2023 |
| YPB 2169511 · TMA1211289 · design | Abercrombie & Fitch Trading Co. | 3 Cosmetics | Registered | 2023 |
| YPB 2169510 · TMA1211288 | Abercrombie & Fitch Trading Co. | 18 Leather | Registered | 2023 |
| YPB 2169509 · TMA1211287 | Abercrombie & Fitch Trading Co. | 3 Cosmetics | Registered | 2023 |
| Yibuy 2166657 · TMA1214506 | Shenzhen Dingsheng Interconnection Technology Co. LTD | 15 Musical | Registered | 2023 |
| YPB 2163267 · TMA1211267 · design | Abercrombie & Fitch Trading Co. | 25 Clothing | Registered | 2023 |
| YPB 2157862 · TMA1211019 | Abercrombie & Fitch Trading Co. | 35 Advertising | Registered | 2023 |
| YPB 2157861 · TMA1209884 | Abercrombie & Fitch Trading Co. | 25 Clothing | Registered | 2023 |
| YVI 2135372 · TMA1206184 · design | YVI, Inc. | 6 Metal7 Machines | Registered | 2023 |
| yabbay 2132669 · TMA1221293 | an individual | 12 Vehicles | Registered | 2024 |
| YFU 2130106 · TMA1197871 | an individual | 35 Advertising39 Transport41 Education | Registered | 2023 |