| UK Savam Leafshe International Cosmetics Co., Ltd | Extraterritorial | 2020 |
| UK Seaways Limited | Manufacturing | 2025 |
| UK Securistyle Hardware System Co., Ltd | Extraterritorial | 2011 |
| UK Shangrao Industry Limited | Administrative & support | 2019 |
| UK Shangzhiya Dress Limited | Administrative & support | 2019 |
| UK Shanmuz Restaurant Limited | Hospitality | 2020 |
| UK Sheliqi Import & Export Trading Ltd | Manufacturing | 2025 |
| UK Shine Bay Food Limited | Wholesale & retail | 2021 |
| UK SHU SA Group Co., Limited | Manufacturing | 2022 |
| UK Silvergate Traders Ltd | Wholesale & retail | 2025 |
| UK Sincomnet Holdings Group Limited | Professional & scientific | 2017 |
| UK Snow Leopard Outdoor Gear Limited | Wholesale & retail | 2026 |
| UK Soor Global Ltd | Wholesale & retail | 2024 |
| UK Sopami Media Co., Ltd | Wholesale & retail | 2025 |
| UK Star Alliance Ltd | Information & communication | 2025 |
| UK Star Dream Beer & Beverage Limited | Administrative & support | 2021 |
| UK Steel Experts Ltd | Wholesale & retail | 2014 |
| UK Strong International Plant Nutrition Science and Technology Co., Limited | Professional & scientific | 2014 |
| UK Student Information Center Ltd | Education | 2025 |
| UK Student Information Management Centre Limited | Education | 2025 |
| UK Sunmuse Outdoor Apparel Research and Development Company Ltd | Wholesale & retail | 2026 |
| UK Sunton Furniture Limited | Manufacturing | 2021 |
| UK Synergytrade Ltd | Wholesale & retail | 2025 |
| UK T&G Hair and Beauty Ltd | Other services | 2019 |
| UK Talmud International Limited | Manufacturing | 2024 |
| UK the Next Stop Foods Limited | Manufacturing | 2021 |
| UK Thirteen Fish Global Ltd | Wholesale & retail | 2024 |
| UK Tommyhenry Trading Limited | Administrative & support | 2021 |
| UK Topbay Cosmetics Limited | Wholesale & retail | 2021 |
| UK Travelportal Ltd | Administrative & support | 2025 |
| UK Treasure Song Education Entertainment Limited | Administrative & support | 2019 |
| UK Tuojia Electronic Business Limited | Administrative & support | 2019 |
| UK U Brand Clothing Co., Ltd. | Administrative & support | 2019 |
| UK Unique Soul Co., Ltd | Extraterritorial | 2017 |
| UK Unitrade Limited | Wholesale & retail | 2025 |
| UK V2 Nature Ltd | Manufacturing | 2025 |
| UK Vansiho Advertisement Limited | Wholesale & retail | 2021 |
| UK Veritas Trade Ltd | Wholesale & retail | 2025 |
| UK Visenno Bearing Ltd | Extraterritorial | 2023 |
| UK Vocational Education Management Committee Co., Ltd | Wholesale & retail | 2022 |
| UK Wall Foods Limited | Wholesale & retail | 2023 |
| UK Weimi Garment Limited | Administrative & support | 2019 |
| UK Weiya Garments Limited | Administrative & support | 2019 |
| UK Wellpull Chemical Group Co., Ltd | Extraterritorial | 2025 |
| UK Wendy Stephen Limited | Manufacturing | 2024 |
| UK White Cliffs Limited | Manufacturing | 2021 |
| UK Winday Education Limited | Administrative & support | 2020 |
| UK Winfold Group Limited | Energy | 2021 |
| UK Xuanlin Int'L Trading Limited | Administrative & support | 2019 |
| UK Xucai Group Limited | Administrative & support | 2019 |
| UK Yachi Dress Limited | Administrative & support | 2019 |
| UK Yafei Cosmetics Limited | Administrative & support | 2019 |
| UK Yanlongchouduan Dress Limited | Administrative & support | 2019 |
| UK Yearnhi Advertising Chain Limited | Professional & scientific | 2020 |
| UK Yimeiren Cosmetics Limited | Administrative & support | 2019 |
| UK Yingerguo Plant Protection Co., Ltd | Administrative & support | 2016 |
| UK Yinglu Wopufeng Int'L Crop Co., Limited | Professional & scientific | 2016 |
| UK Yinuoqian Garment Limited | Administrative & support | 2019 |
| UK Yipinxuan Summergate Limited | Administrative & support | 2019 |
| UK Yiwa Dress Limited | Administrative & support | 2019 |
| UK Youdalisi Dress Limited | Manufacturing | 2020 |
| UK Youlanxiang Dress Limited | Administrative & support | 2019 |
| UK Youyixian Drink Trading Limited | Administrative & support | 2019 |
| UK Yunwang Technology Co., Ltd. | Wholesale & retail | 2025 |
| UK Z&Q Holding Limited | Energy | 2021 |
| UK Zeyang Trading Ltd | Wholesale & retail | 2025 |
| UK Zhonghui Realty Management Limited | Administrative & support | 2019 |
| UK Zijin Ltd | Wholesale & retail | 2024 |
| UK Zoki Construction Limited | Construction | 2021 |
| UK ZXC Ltd | Wholesale & retail | 2025 |
| Uk-China Development and Cooperation Committee Ltd | Financial services | 2024 |
| Uk-China Import and Export Trading Acadamy Ltd | Wholesale & retail | 2025 |
| Uk-Inter Education Ltd | Information & communication | 2024 |
| Uked Logistics Ltd | Transport & logistics | 2025 |
| Ukify Ltd | Information & communication | 2025 |
| Ukio Tech Limited | Wholesale & retail | 2025 |
| Ukorthocare Limited | Health & social care | 2009 |
| Ukrenergy Coal Limited | Other services | 2005 |
| Uktaxforexpats Limited | Professional & scientific | 2017 |
| Ukyzw Business Ltd | Wholesale & retail | 2024 |
| Ulara Glow Ltd | Manufacturing | 2025 |
| Ulian Promos Limited | Wholesale & retail | 2026 |
| Ulima Pro Limited | Wholesale & retail | 2024 |
| ULL International Ltd | Wholesale & retail | 2025 |
| Ulloria Ltd | Wholesale & retail | 2025 |
| Ulmex Chemical Limited | Administrative & support | 2010 |
| Ultimas Care Ltd | Public administration | 2024 |
| Ultra Cool Resources Ltd | Wholesale & retail | 2025 |
| Ultra Power Technology Limited | Wholesale & retail | 2012 |
| Ultraffiliate Ltd | Information & communication | 2025 |
| Ultraven Laboratory Ltd | Manufacturing | 2025 |
| Ulvique Ltd | Wholesale & retail | 2025 |
| Umair-Zara Ltd | Information & communication | 2025 |
| Umami Kitchen Ltd | Manufacturing | 2025 |
| Umar Deals Limited | Wholesale & retail | 2025 |
| UMI Fastbuy Ltd | Wholesale & retail | 2025 |
| UMI Media Limited | Wholesale & retail | 2025 |
| Umie Ltd | Wholesale & retail | 2025 |
| Umrah Tech Ltd | Information & communication | 2023 |
| Umrahonbehalf Ltd | Administrative & support | 2025 |