| Twelve Jenner Road Management Limited | Households | 1978 |
| Twenty SIX Twenty Transport Ltd | Transport & logistics | 2025 |
| Twickenham Place Residents Limited | Households | 2003 |
| Two Associates Limited | Professional & scientific | 2008 |
| Two Shores Services Limited | Administrative & support | 2025 |
| Twotwentyseven London Ltd | Information & communication | 2008 |
| TWP Group Limited | Real estate | 2016 |
| TY Rhos Television Limited | Information & communication | 2006 |
| U-Linc Limited | Information & communication | 2017 |
| Ubevco 2006 Limited | Professional & scientific | 2006 |
| Uctel Ltd | Information & communication | 2011 |
| UK Coms Limited | Information & communication | 2014 |
| UK Innovative Concepts Ltd | Manufacturing | 2015 |
| UK Israel Business | Other services | 1950 |
| UK Long View Limited | Education | 2011 |
| UK Open Management Limited | Administrative & support | 2020 |
| UK Virgimax Liquors Trading & Consulting Co., Ltd | Wholesale & retail | 2020 |
| Ultimate Poker Ltd | Wholesale & retail | 2026 |
| Ultimate Pubs Limited | Hospitality | 2023 |
| Ultimate Technology Europe Ltd | Wholesale & retail | 2008 |
| UNA Consulting Limited | Professional & scientific | 2022 |
| Uneeq Designs Ltd | Wholesale & retail | 2017 |
| Unison Properties Limited | Real estate | 1986 |
| Unreal Audio Productions Ltd | Administrative & support | 2025 |
| UP (Unleashing Potential) Ltd. | Professional & scientific | 2005 |
| Upandabove Ltd | Information & communication | 2020 |
| Upper Highlands Residents Limited | Households | 2010 |
| Urban Equine Ltd | Wholesale & retail | 2021 |
| Urbanimage Media Limited | Arts & recreation | 2006 |
| V.G. Bennett Ltd | Wholesale & retail | 2004 |
| V3 Metrics Ltd | Information & communication | 2009 |
| Vai-Services Ltd | Administrative & support | 2019 |
| Vail Corporation Limited | Professional & scientific | 1993 |
| Vale Real Estate Limited | Real estate | 2012 |
| Vallee Management Services Ltd | Professional & scientific | 2016 |
| Valleywell Solutions Ltd | Transport & logistics | 2004 |
| Vavoca Financial Consultants Limited | Professional & scientific | 2006 |
| VBM Consulting Limited | Professional & scientific | 2002 |
| Velmex Computer Systems Ltd | Wholesale & retail | 1992 |
| Velmex Digital Limited | Information & communication | 2019 |
| Velmex Technical Services Limited | Manufacturing | 2015 |
| Vendetta Arts Limited | Financial services | 2025 |
| Veriqo Limited | Information & communication | 2025 |
| Veritas London Limited | Construction | 2015 |
| Vero Enterprises Group Limited | Other services | 2025 |
| Versatile Driveways and Developments Ltd | Construction | 2015 |
| Vertical Talent Ltd | Administrative & support | 2026 |
| Vesta Care Homes Limited | Health & social care | 2012 |
| Veterinary Pathology Group Limited | Professional & scientific | 2017 |
| Vettertec Ltd | Manufacturing | 1981 |
| Vicerole Limited | Administrative & support | 2016 |
| Vicky Matthews Education Limited | Education | 2025 |
| Victoria Mews Management (Weybridge) Limited | Households | 1997 |
| Vidallion Solutions Limited | Information & communication | 2026 |
| Village Aesthetic's Wimbledon Ltd | Other services | 2023 |
| Vineries Garden Services Ltd | Wholesale & retail | 2019 |
| Vinicius & Pierre Painting Ltd | Construction | 2022 |
| Violet London Ltd | Wholesale & retail | 2020 |
| VIP World Services Limited | Information & communication | 2019 |
| Virtual Recall Limited | Information & communication | 2014 |
| Virtual Touchpoint Limited | Professional & scientific | 2006 |
| Virtucon Holdings Ltd | Financial services | 2025 |
| Visionmill Limited | Information & communication | 1998 |
| Vital Health Profiles Limited | Health & social care | 2014 |
| Vitality House Limited | Wholesale & retail | 2008 |
| VKS Stores Ltd | Wholesale & retail | 2018 |
| VM Construct Ltd | Wholesale & retail | 2014 |
| Voget Services Limited | Professional & scientific | 2025 |
| Volantis Investments Limited | Financial services | 2018 |
| Volantis Properties Limited | Real estate | 2018 |
| Vortex 9 Designs Ltd | Professional & scientific | 2009 |
| Vucciria Limited | Hospitality | 2026 |
| Vxinteriors Limited | Professional & scientific | 2021 |
| W Jennings & Associates Limited | Professional & scientific | 2000 |
| W.Finch & Co. Holdings Limited | Real estate | 2024 |
| Wafclark Ltd | Professional & scientific | 2020 |
| Waffles & Waves Ltd | Hospitality | 2024 |
| Wahla Properties Limited | Financial services | 2025 |
| Walelaw Ltd | Arts & recreation | 2024 |
| Wall Space Art Ltd | Wholesale & retail | 2014 |
| Wallis Mews Residents Company Limited | Households | 1994 |
| Walnetics Ltd | Wholesale & retail | 2025 |
| Walsden Limited | Real estate | 2025 |
| Waltieza Limited | Real estate | 2015 |
| Warc Tech Ltd. | Information & communication | 2021 |
| Warenne Mount Management Company Limited | Households | 1996 |
| Warner Marketing Consultants Limited | Professional & scientific | 2005 |
| Warren Court Freehold Management Limited | Households | 2005 |
| Warren Court Management Co. Limited | Households | 1980 |
| Wates (Crowborough) Limited | Construction | 2021 |
| Wates (Walberton) Limited | Construction | 2018 |
| Wates (WR) Limited | Construction | 2018 |
| Wates Amenity Lands Limited | Professional & scientific | 1962 |
| Wates Built Homes (Blakes) Limited | Professional & scientific | 1973 |
| Wates Built Homes (London) Limited | Professional & scientific | 1970 |
| Wates Built Homes (Retirement) Limited | Professional & scientific | 1979 |
| Wates Built Homes (Southern) Limited | Professional & scientific | 1970 |
| Wates Built Homes Limited | Professional & scientific | 1963 |
| Wates Construction Limited | Construction | 1986 |
| Wates Construction Services Limited | Construction | 2001 |