| Yiwu Parly Trading Co., Ltd | Wholesale & retail | 2023 |
| Yiwu Party Star Co., Ltd | Manufacturing | 2017 |
| Yiwu Party Star Import and Export Co., Ltd | Wholesale & retail | 2023 |
| Yiwu Qingzhi Trade Co., Ltd. | Extraterritorial | 2014 |
| Yiwu Quanyun Trading Co., Ltd | Wholesale & retail | 2025 |
| Yiwu RG Trading Co., Ltd | Extraterritorial | 2025 |
| Yiwu RIO Trade Co., Ltd | Extraterritorial | 2023 |
| Yiwu Rongdi Import and Export Co., Ltd | Wholesale & retail | 2020 |
| Yiwu Runxiang Trade Co., Ltd | Wholesale & retail | 2023 |
| Yiwu S&N International Trading Co., Limited | Wholesale & retail | 2017 |
| Yiwu Salah Trading Co., Ltd | Wholesale & retail | 2024 |
| Yiwu Sanad Trading Co., Ltd | Wholesale & retail | 2023 |
| Yiwu Shangding Shoes Co., Ltd | Wholesale & retail | 2024 |
| Yiwu Shengshibi Trading Co., Limited | Wholesale & retail | 2023 |
| Yiwu Shengsim IMP & EXP Co., Ltd | Extraterritorial | 2017 |
| Yiwu Shuei-Nissho Trade Co., Ltd | Wholesale & retail | 2023 |
| Yiwu Shufei Import&Export Co., Ltd | Extraterritorial | 2015 |
| Yiwu Shuoni Trading Co., Ltd | Wholesale & retail | 2024 |
| Yiwu Star Trading Co., Ltd | Manufacturing | 2017 |
| Yiwu Sunrise International Trading Co., Ltd | Extraterritorial | 2021 |
| Yiwu Superstar Co., Ltd | Wholesale & retail | 2018 |
| Yiwu Tahhan Trading Co., Ltd | Wholesale & retail | 2021 |
| Yiwu Tengfei Import and Export Co., Ltd | Wholesale & retail | 2021 |
| Yiwu Time Trading Co., Ltd | Wholesale & retail | 2025 |
| Yiwu Tonghui Import and Export Co., Limited | Wholesale & retail | 2024 |
| Yiwu Tongmo Import and Export Co., Ltd | Extraterritorial | 2024 |
| Yiwu Tradeconn Trading Company Limited | Extraterritorial | 2020 |
| Yiwu Wake Import and Export Co., Ltd | Wholesale & retail | 2023 |
| Yiwu WM Trading Company Limited | Extraterritorial | 2022 |
| Yiwu Wuyou Trading Co., Ltd | Wholesale & retail | 2020 |
| Yiwu Yahao Import and Export Co., Ltd | Wholesale & retail | 2025 |
| Yiwu Yaoyao Import and Export Co., Ltd | Wholesale & retail | 2023 |
| Yiwu Yijing Import and Export Co., Ltd | Wholesale & retail | 2025 |
| Yiwu Yizhe Import and Export Co., Ltd | Wholesale & retail | 2023 |
| Yiwu Youju Trading Co., Ltd | Wholesale & retail | 2025 |
| Yiwu Yuxin Import and Export Co., Ltd | Extraterritorial | 2025 |
| Yiwu Yuxin Trade Company Ltd | Wholesale & retail | 2024 |
| Yiwu Zehua Freight Forwarding Co., Ltd | Wholesale & retail | 2026 |
| Yiwu Zhenli Trade Co., Ltd | Wholesale & retail | 2023 |
| Yiwu Zhongxiang Commodity Purchase Co., Ltd | Wholesale & retail | 2025 |
| Yiwushi Shenghui Import & Export Co., Limited | Wholesale & retail | 2023 |
| Yixin Industrial Co., Limited | Extraterritorial | 2024 |
| Yiyi Cargo Co., Ltd | Extraterritorial | 2014 |
| Yiyuan Co., Ltd | Wholesale & retail | 2023 |
| Yiyuan Jewelry Co., Ltd. | Extraterritorial | 2020 |
| YJ Property Ltd | Real estate | 2017 |
| YK Arts Limited | Professional & scientific | 2024 |
| YK Changer Industry Co., Ltd | Extraterritorial | 2017 |
| YLY International Ltd | Wholesale & retail | 2016 |
| YM Machinery Group Co., Ltd | Professional & scientific | 2014 |
| YMB Label Ltd | Wholesale & retail | 2023 |
| YMT Audio Ltd | Wholesale & retail | 2025 |
| YO Prime Ltd | Real estate | 2023 |
| Yoga Therapy Ltd | Arts & recreation | 2025 |
| Yolanda Company Ltd | Health & social care | 2011 |
| Yome Ltd | Real estate | 2019 |
| Yong FA Trading Limited | Administrative & support | 2002 |
| Yong XIN Equipment Ltd. | Professional & scientific | 2008 |
| Yongjia Transcend Flow Control Co., Ltd | Extraterritorial | 2023 |
| Yongkang Hengli Electronics Co., Limited | Wholesale & retail | 2018 |
| Yongqing International Trading Co., Ltd | Wholesale & retail | 2025 |
| Yongwise Technology Ltd | Information & communication | 2025 |
| Yoocar Limited | Information & communication | 2025 |
| York Central Residents' Association Limited | Administrative & support | 1998 |
| York Place NO. 1 Residents Company Limited | Real estate | 1988 |
| York Place NO. 2 Residents Company Limited | Households | 1988 |
| Yorke Developments Limited | Construction | 2021 |
| Yorke Estates Limited | Real estate | 2024 |
| Yorkshire Empire Properties Limited | Real estate | 2025 |
| Yoshino Limited | Manufacturing | 1994 |
| Yotch Mechanical Co., Ltd | Extraterritorial | 2019 |
| Yottahelix Ltd | Professional & scientific | 2017 |
| Young and Robinson Publishing Consultancy Limited | Administrative & support | 2003 |
| Young Doctor Limited | Wholesale & retail | 2023 |
| Youngho Limited | Wholesale & retail | 2023 |
| Younglee Metal Products Co., Ltd | Extraterritorial | 2011 |
| Youngly International Co., Ltd | Wholesale & retail | 2020 |
| Younique Systems Limited | Professional & scientific | 2012 |
| Your Car Spa Ltd | Wholesale & retail | 2021 |
| Your Exit Strategy Ltd | Financial services | 2020 |
| Your Own 2 Feet Limited | Financial services | 2018 |
| Your Space Apartments Limited | Extraterritorial | 2009 |
| Your Space Cambridge Limited | Hospitality | 2009 |
| Your Space Group Ltd | Professional & scientific | 2004 |
| Your Space London Limited | Hospitality | 2004 |
| Your Total Aviation Solutions Ltd | Manufacturing | 2017 |
| Youth Voices Matter Ltd | Education | 2018 |
| Youyou Network Limited | Information & communication | 2023 |
| Yoyococo Limited | Wholesale & retail | 2024 |
| YRC UK Technology Ltd | Manufacturing | 2018 |
| YRD Swift Ltd | Manufacturing | 2025 |
| YRS Car's Ltd | Manufacturing | 2025 |
| Ysaura Ltd | Wholesale & retail | 2025 |
| Yson Group Ltd | Extraterritorial | 2013 |
| YSQ Properties Ltd | Real estate | 2022 |
| YSS International Business Co., Limited | Professional & scientific | 2021 |
| YSW Qunk Development Co., Limited | Extraterritorial | 2015 |
| YT Building Decoration Materials Co., Ltd | Manufacturing | 2025 |
| Yttrium Capital Limited | Financial services | 2021 |
| Yuanjoy. Ltd | Wholesale & retail | 2026 |