| TMN Ltd | Professional & scientific | 2014 |
| TMP Consultancy Ltd | Professional & scientific | 2024 |
| TNB Neighbours Limited | Wholesale & retail | 2023 |
| TNB Retail Limited | Wholesale & retail | 2023 |
| TOM Corrigan Limited | Wholesale & retail | 2025 |
| TOM MAY Associates Limited | Arts & recreation | 2011 |
| Tomlins Analytics Ltd | Professional & scientific | 2013 |
| Tony Pinnegar Ltd | Professional & scientific | 2015 |
| Top Cat Courier Solutions Limited | Transport & logistics | 2013 |
| Topgolf Group Limited | Arts & recreation | 2002 |
| Topgolf Limited | Arts & recreation | 1999 |
| Topgolf Mexico Holdings Ltd. | Professional & scientific | 2017 |
| Topgolf UK Holdings Limited Partnership | | 2016 |
| Tormax United Kingdom Limited | Manufacturing | 1948 |
| Total Blasting Ltd | Professional & scientific | 2022 |
| Total Homecare Professionals Limited | Administrative & support | 2018 |
| Total- Print & Display Company Limited | Manufacturing | 2016 |
| Totally Floored LDN Ltd | Construction | 2026 |
| Towpath Car Park Ltd | Households | 2010 |
| Towpath Residents Limited | Other services | 2026 |
| Trades & Labour (UK) Limited | Administrative & support | 2006 |
| Translink Consulting Ltd | Wholesale & retail | 2024 |
| Translink Systems Limited | Information & communication | 2014 |
| TRB Decorating and Building Services Ltd | Construction | 2021 |
| Trinos Ltd | Arts & recreation | 2021 |
| Trio Holdings Ltd | Wholesale & retail | 2017 |
| Trio Pharma Limited | Health & social care | 2011 |
| TRIPLE9 Sauna Co Limited | Administrative & support | 2026 |
| Triscond Ltd | Other services | 2024 |
| Truth Agency Ltd | Information & communication | 2023 |
| TS Financial Advisors Limited | Financial services | 2015 |
| Tucktonia Limited | Other services | 2020 |
| Tulip Treasures Ltd | Wholesale & retail | 2025 |
| Turf and Stone Ltd | Construction | 2026 |
| Turner Automotive Limited | Manufacturing | 2016 |
| TVP Properties Limited | Real estate | 2020 |
| TW16 Roofing Limited | Construction | 2024 |
| TWB Maintenance Limited | Construction | 2012 |
| Twph Ltd | Construction | 2017 |
| Tymada Limited | Extraterritorial | 2021 |
| Ultimate Space Limited | Construction | 2013 |
| Umbra-Web Limited | Information & communication | 2021 |
| Uncia Consultants Ltd | Professional & scientific | 2008 |
| Uncle Tetsu London Limited | Hospitality | 2017 |
| Unicorn Records Limited | Arts & recreation | 1963 |
| United Lions Limited | Arts & recreation | 2011 |
| United Pictures Ltd | Hospitality | 2019 |
| Universal 360 Ltd | Information & communication | 2002 |
| Upper Halliford Road Residents Limited | Households | 1999 |
| Urban Vape Tech Limited | Wholesale & retail | 2023 |
| Ussmorgan Limited | Manufacturing | 2025 |
| VA Cars Ltd | Transport & logistics | 2015 |
| VAR Solutions Ltd | Information & communication | 2021 |
| Vector Global Solutions Limited | Administrative & support | 2010 |
| Velapreis Ltd | Wholesale & retail | 2017 |
| Ventrax Ltd | Energy | 2026 |
| Verbase Limited | Information & communication | 2009 |
| Verdant Technologies Limited | Administrative & support | 2002 |
| Verve Fitness Limited | Arts & recreation | 2007 |
| Veslabo Ltd | Transport & logistics | 2015 |
| Victorae Limited | Professional & scientific | 2025 |
| Viewwood Limited | Professional & scientific | 2014 |
| Viking Pictures Ltd | Information & communication | 2021 |
| Village Gate Residents Association Limited(The) | Households | 1986 |
| Virtuoso Property Management Ltd | Real estate | 2015 |
| Viva Pilates Ltd | Arts & recreation | 2020 |
| VMR Draughting Services Limited | Professional & scientific | 2007 |
| VO Homes Limited | Construction | 2021 |
| Voltek (UK) Limited | Construction | 2008 |
| VV Bookkeeping Limited | Professional & scientific | 2025 |
| W3 Aero Limited | Manufacturing | 2018 |
| Wake to Wake Supplies Limited | Construction | 2025 |
| Walton Bridge HCW Ltd | Other services | 2021 |
| Waplington Rose Investments Ltd | Real estate | 2021 |
| Warood Arabia Limited | Wholesale & retail | 2025 |
| Watering Minds Ltd | Education | 2021 |
| Wayne Marsh Construction Limited | Construction | 2018 |
| WE FIX ALL Roofs Limited | Construction | 2025 |
| Weatherlands Property Services Limited | Real estate | 2026 |
| Weatherley Landscaping Limited | Other services | 2024 |
| Welbeck Marketing Limited | Professional & scientific | 2023 |
| Weststone Logistics Limited | Other services | 2009 |
| Weybridge Mariners Club Limited | Other services | 2007 |
| Weybridge Taxis Limited | Transport & logistics | 2023 |
| Wgdr Investments and Trading Limited | Real estate | 1993 |
| Wheston Hill Project Services Ltd | Construction | 2012 |
| White Label IP Limited | Professional & scientific | 2020 |
| Wilde Waters Limited | Administrative & support | 1993 |
| Willow and Finn Limited | Wholesale & retail | 2023 |
| Windisor Classics Ltd | Wholesale & retail | 1996 |
| Winters Window Cleaning Limited | Administrative & support | 2020 |
| Wirral Instrumentation Limited | Administrative & support | 2013 |
| WL Gymnastics Ltd | Arts & recreation | 2013 |
| WM Commissioning Ltd. | Construction | 2011 |
| WM Landscaping Ltd | Administrative & support | 2016 |
| Wolfram IT Services Limited | Information & communication | 2015 |
| Woolford Medical Media Limited | Education | 2018 |
| Workflow Connections Limited | Information & communication | 2005 |
| Worthitsecurity Limited | Information & communication | 2025 |
| Wright on Media Ltd | Information & communication | 2006 |