| TTP Consultancy Limited | Professional & scientific | 2023 |
| Tucker & Co Holdings Limited | Professional & scientific | 2025 |
| Tucker & Co South West Limited | Construction | 2010 |
| Tuckers Grave Inn Limited | Other services | 2017 |
| Tucks Tyres Ltd | Wholesale & retail | 2019 |
| Tunley Property Ltd | Real estate | 2020 |
| Turner Balloons Limited | Administrative & support | 2011 |
| Turner Broadcast Limited | Information & communication | 2011 |
| TW Carpentry Limited | Construction | 2026 |
| Twinhoe Game Ltd | Agriculture & fishing | 2014 |
| TWS Enterprises Ltd | Real estate | 2024 |
| Tyndale Inns Limited | Hospitality | 2008 |
| Tyning Landscapes Limited | Administrative & support | 2019 |
| TYRE2YOU Limited | Wholesale & retail | 2017 |
| UK DBA Ltd | Information & communication | 2018 |
| UK Dima Trade Limited | Wholesale & retail | 2024 |
| Ummyeah Ltd | Hospitality | 2025 |
| Unit Glass Ltd. | Construction | 2017 |
| Upson Builders Ltd | Construction | 1997 |
| Upson Building Services Limited | Extraterritorial | 2007 |
| Used Jags Ltd | Wholesale & retail | 2025 |
| Valborg Canine Limited | Other services | 2011 |
| Valentino (UK) Limited | Wholesale & retail | 2005 |
| Valentino Kitchens Ltd | Extraterritorial | 2011 |
| Valley View Property Ltd | Real estate | 2022 |
| Vantage FM Services Ltd | Administrative & support | 2019 |
| Varispeed Limited | Information & communication | 2007 |
| Veridian Competitions Ltd | Arts & recreation | 2025 |
| Vertigo Rigging Ltd | Manufacturing | 2021 |
| Vestry Property Management Limited | Households | 2022 |
| Viatec (UK) Limited | Wholesale & retail | 2005 |
| Victoria Place (Paulton) Management Limited | Households | 1990 |
| Viewitnow Limited | Households | 2017 |
| Vintage and Supercar Carriages Limited | Administrative & support | 2024 |
| Virus Shield (UK) Ltd | Manufacturing | 2022 |
| Virus Shield Biosciences Limited | Agriculture & fishing | 2020 |
| Vision Spares Limited | Wholesale & retail | 2011 |
| Visionforsport Ltd | Wholesale & retail | 2016 |
| Visual Telematics Ltd | Wholesale & retail | 2016 |
| Vizion Hair Design Ltd | Other services | 2010 |
| Vizz Limited | Information & communication | 2021 |
| Vobster Diving Limited | Arts & recreation | 2008 |
| Voltscore Ltd | Information & communication | 2026 |
| Vortex Global Holdings Ltd | Financial services | 2024 |
| Voyage of Ceylon Limited | Administrative & support | 2026 |
| W J a Vaughan & SON Ltd | Transport & logistics | 2011 |
| W J T Contracting Ltd | Construction | 2019 |
| W Spencer Consult Limited | Professional & scientific | 2019 |
| WAB Hospitality Ltd | Hospitality | 2020 |
| Waggle Dance Ltd | Professional & scientific | 2024 |
| Walker Payne Logistics Limited | Transport & logistics | 2022 |
| Walton and Stratford Property Services Ltd | Construction | 2022 |
| Walton Property Management Services Limited | Real estate | 2024 |
| Waste Recycling Technologies Limited | Professional & scientific | 2004 |
| Water Survival Box Ltd | Health & social care | 2006 |
| Waterhouse Holdings (MSN) Ltd | Financial services | 2021 |
| Waterhouse Plumbing and Heating Ltd | Construction | 2020 |
| Watermelon Entertainment Ltd | Arts & recreation | 2021 |
| Watford Theatre Company,Limited(The) | Construction | 1909 |
| Watts Development Ltd | Real estate | 2006 |
| WE ARE Eight Ltd | Information & communication | 2014 |
| Weather Research Limited | Professional & scientific | 2003 |
| Weeks Specialist Welding Limited | Construction | 2016 |
| Welcome Associated Services Limited | Construction | 2011 |
| Wellow Brook Court Management Company Limited | Households | 2003 |
| Wellsway Developments 890 Limited | Real estate | 2020 |
| Wellsway Works Limited | Construction | 2003 |
| Welton Rovers Football Club Limited | Arts & recreation | 1965 |
| Wesco Engineering Services Limited | Construction | 2002 |
| West Cumbria Energy Ltd | Energy | 2020 |
| Westfield Aviation Limited | Transport & logistics | 2020 |
| Westfield Housing Developments Ltd | Construction | 2008 |
| Westfield Medical Limited | Manufacturing | 1992 |
| Westmead Management Company (Chilcompton) Limited | Households | 2007 |
| Westmôr Properties Limited | Real estate | 2023 |
| Westsell Limited | Wholesale & retail | 1988 |
| Wexford Support Resources Ltd | Administrative & support | 2025 |
| WFS 23 Ltd | Other services | 2022 |
| Where to Start Building Consultancy Ltd | Professional & scientific | 2024 |
| Whistleblower Legal Limited | Extraterritorial | 2018 |
| Whistleblowers International Limited | Extraterritorial | 2018 |
| Whistleblowersuk | Professional & scientific | 2014 |
| White Hart Inn (Bath) Limited | Hospitality | 2004 |
| Whiteacre Stone Masonry Limited | Construction | 2015 |
| Whitehole Springs Limited | Manufacturing | 2021 |
| Whitelake PV Ltd | Energy | 2016 |
| Whitestone NET Zero Ltd | Energy | 2024 |
| Whits END Limited | Agriculture & fishing | 2024 |
| WI & NDT Group Limited | Professional & scientific | 2024 |
| Wight Cycle Limited | Administrative & support | 2012 |
| Wight Property Photography Limited | Professional & scientific | 2021 |
| Wild Plunge Limited | Other services | 2024 |
| Wild Rose Property Ltd | Real estate | 2022 |
| Wildwater Distillery Ltd | Manufacturing | 2026 |
| Will Smith Motor Engineer Limited | Wholesale & retail | 2002 |
| William Elliott Sports Limited | Arts & recreation | 2003 |
| Willow Glaze Ltd | Extraterritorial | 2023 |
| Willow Properties (Bath) Ltd | Construction | 2021 |
| Wiltshire Fencing Contractors Ltd | Construction | 2023 |
| Windridge Consulting Limited | Professional & scientific | 2015 |