| Sunze Limited | Wholesale & retail | 2025 |
| Survive & Thrive Limited | Wholesale & retail | 2002 |
| Susan Xiang Trading Ltd | Wholesale & retail | 2024 |
| Swanson Mackay & Co. Limited | Wholesale & retail | 1984 |
| Swiftcharge Gaming Limited | Wholesale & retail | 2025 |
| Swifteagle Limited | Construction | 1996 |
| T2 Consultancy Limited | Financial services | 1997 |
| Taiding Trading Ltd | Wholesale & retail | 2025 |
| Taima Foreign Trade Ltd | Wholesale & retail | 2025 |
| Takara Global Trade Ltd | Wholesale & retail | 2025 |
| Teguan Business Ltd | Wholesale & retail | 2025 |
| Telesense Consulting Limited | Information & communication | 1998 |
| Temai Trading Ltd | Wholesale & retail | 2025 |
| Temeng Trading Ltd | Wholesale & retail | 2025 |
| Tengyuan Trading Ltd | Wholesale & retail | 2025 |
| Terrabit Technologies Limited | Wholesale & retail | 2025 |
| THE 6 ST John Street Management Company (Hereford) Limited | Real estate | 2005 |
| THE Coffee Cart Company Limited | Hospitality | 2002 |
| THE Family Furnishers Ltd | Wholesale & retail | 1998 |
| THE Grace Project (Incorporating Abundant Life Church) | Education | 2002 |
| THE Green Eyed Monster Co. | Wholesale & retail | 2006 |
| THE Old Barn Functions Ltd | Hospitality | 2018 |
| THE Orgasmic Cider Co. Ltd | Manufacturing | 2002 |
| THE Woodland Davies Partnership LLP | | 2006 |
| Thomas Panels & Profiles Limited | Construction | 2005 |
| Three Counties Business Doctor Limited | Extraterritorial | 2007 |
| Tian CI Trading Ltd | Wholesale & retail | 2024 |
| Tian Xiao Tian Ltd | Wholesale & retail | 2025 |
| Tianbai Trading Ltd | Wholesale & retail | 2025 |
| Tianjin XHX Metal Co., Limited | Administrative & support | 2024 |
| Tianling Ltd | Wholesale & retail | 2025 |
| Tiantuan Business Ltd | Wholesale & retail | 2025 |
| TIE LUO Trading Ltd | Wholesale & retail | 2025 |
| Tieji Trading Ltd | Wholesale & retail | 2025 |
| Tiger Aviation Limited | Professional & scientific | 2000 |
| Tiger Helicopters Limited | Education | 1995 |
| Tingfa Ltd | Wholesale & retail | 2025 |
| Toller Works Ltd | Construction | 2025 |
| Tongchen Trading Ltd | Wholesale & retail | 2025 |
| Topwell Trade Ltd | Wholesale & retail | 2024 |
| Tower Spire UK Limited | Manufacturing | 2025 |
| Townsend Touring Park Limited | Hospitality | 2005 |
| TPG Disableaids (Holdings) Limited | Professional & scientific | 2021 |
| Transatlantic Film Production & Distribution Company Limited | Information & communication | 1969 |
| Treberva Fruit Farms Limited | Agriculture & fishing | 1963 |
| True Fire Trading Ltd | Wholesale & retail | 2025 |
| TSN Rising China Company Ltd | Wholesale & retail | 2024 |
| Tuoling Trading Ltd | Wholesale & retail | 2025 |
| Tuomu Trading Ltd | Wholesale & retail | 2025 |
| Tuoqing Trading Ltd | Wholesale & retail | 2025 |
| Tuoyu Trading Ltd | Wholesale & retail | 2025 |
| Tuqi Global Trading Co., Ltd | Wholesale & retail | 2025 |
| Tyab Traders Ltd | Wholesale & retail | 2025 |
| Tyberton Court Property Management Company Limited | Real estate | 2001 |
| UK Bray Limited | Wholesale & retail | 2023 |
| UK Caties Cosmetics Ltd | Extraterritorial | 2023 |
| UK Miracle Technology Limited | Information & communication | 2025 |
| UK Xinore Biomedical Research Centre Ltd | Manufacturing | 2025 |
| Underdown Management Company Limited | Households | 1986 |
| Unique Van Bodies Ltd | Manufacturing | 2007 |
| Upinsource Trade Ltd | Wholesale & retail | 2024 |
| Upsurge Trading Limited | Wholesale & retail | 2023 |
| Uxenhurst Limited | Transport & logistics | 1984 |
| Velnora Trading Ltd | Wholesale & retail | 2025 |
| Verve International Ltd. | Administrative & support | 2025 |
| Viet YIK Trading Ltd | Wholesale & retail | 2025 |
| Vishi Trading Ltd | Wholesale & retail | 2025 |
| Vision Investments Group Ltd | Financial services | 2016 |
| Vitalvito Limited | Wholesale & retail | 2025 |
| Vpsurvey Limited | Information & communication | 2025 |
| W James (Repairs & Welding) Limited | Manufacturing | 2001 |
| W. S. & B. Rees (Chemist) Limited | Extraterritorial | 1956 |
| Walking With Deer Ltd. | Wholesale & retail | 2024 |
| WAN SHI Shun Trading Ltd | Wholesale & retail | 2024 |
| Wanbin Trading Ltd | Wholesale & retail | 2025 |
| Wang YU Trading Ltd | Wholesale & retail | 2025 |
| Wangjing Ltd | Wholesale & retail | 2025 |
| Wangzijian Ltd | Wholesale & retail | 2025 |
| Wanhaih Ltd | Wholesale & retail | 2025 |
| Wanjun Trade Ltd | Wholesale & retail | 2024 |
| Wanshenghui Trading Limited | Wholesale & retail | 2024 |
| Wanzhanhong Ltd | Wholesale & retail | 2025 |
| Warner Investments Limited | Real estate | 2022 |
| Watson's Motor Works Limited | Wholesale & retail | 1919 |
| Waverender Limited | Wholesale & retail | 2025 |
| Wedge Solutions Limited | Information & communication | 2007 |
| Weiming Trading Limited | Wholesale & retail | 2023 |
| Weiwei Trading Ltd | Wholesale & retail | 2025 |
| Weiwo Trading Ltd | Wholesale & retail | 2025 |
| Weiyang Trading Ltd | Wholesale & retail | 2025 |
| Weiye Trading Co., Ltd | Manufacturing | 2025 |
| Weizhan Trading Ltd | Wholesale & retail | 2025 |
| Well-Renyi Ltd | Wholesale & retail | 2024 |
| Wellbeing and Health Group Limited | Other services | 2021 |
| Westwood Developments (Hereford) Ltd | Real estate | 2006 |
| White Cloud Trading Company Limited | Wholesale & retail | 2005 |
| Wilcox Industries Limited | Real estate | 1982 |
| Williams the KEG Limited | Extraterritorial | 2015 |
| Winnell Douglas Limited | Financial services | 2003 |
| Wonart Trading Ltd | Wholesale & retail | 2024 |