| Wantage Properties Ltd | Real estate | 2026 |
| Wargrave Parking Services Ltd | Professional & scientific | 2015 |
| Warm Winters Ltd | Construction | 2025 |
| Warmoog Ltd | Transport & logistics | 2014 |
| Warriyah Productions Ltd | Information & communication | 2020 |
| Warsame Tech Ltd | Professional & scientific | 2026 |
| Wasd Limited | Hospitality | 2025 |
| Washx DRY Cleaners Limited | Other services | 2024 |
| Watakushi Ltd | Wholesale & retail | 2026 |
| Watch Security Services Limited | Financial services | 2019 |
| Watchtower Analytics Ltd | Information & communication | 2024 |
| Water Lane Coffee and Wine Limited | Hospitality | 2025 |
| Waterford Enterprises Ltd | Extraterritorial | 2023 |
| Waterside Medical Centre Limited | Health & social care | 2008 |
| Wave Worldwide Ltd | Wholesale & retail | 2023 |
| Way of WUN Ltd | Wholesale & retail | 2025 |
| WAY2DIRECT Technologies Ltd | Information & communication | 2025 |
| WAY2IT Solutions Limited | Information & communication | 2022 |
| Wazir Ventures Limited | Financial services | 2020 |
| WB London Ltd | Administrative & support | 2025 |
| Wdaaccessories Ltd | Wholesale & retail | 2021 |
| WE CAN Build Ltd | Construction | 2013 |
| WE Know Group Limited | Wholesale & retail | 2013 |
| WE Make Footballers Addlestone LLP | | 2026 |
| WE Repair Autos Limited | Wholesale & retail | 2023 |
| Wealth Hub Investments Ltd | Real estate | 2023 |
| Web Wave Marketers Limited | Information & communication | 2024 |
| Webdragons-Uk Ltd | Wholesale & retail | 2025 |
| Wedriveglobal Ltd | Transport & logistics | 2023 |
| Wegotbellys Limited | Information & communication | 2015 |
| Weld IT Southall Ltd | Manufacturing | 2021 |
| Weldwide Services Limited | Manufacturing | 1997 |
| Well Done Investments Limited | Real estate | 2018 |
| Well Life Hub Limited | Health & social care | 2026 |
| Well Worth Deals Limited | Wholesale & retail | 2020 |
| Wellbeing Evergreen Ltd | Wholesale & retail | 2021 |
| Wellcare Surgicals Ltd | Other services | 2022 |
| Welldwell Properties Ltd | Real estate | 2022 |
| Wellnest Home Care Ltd | Health & social care | 2023 |
| Weprop Limited | Real estate | 2024 |
| West Autos Limited | Wholesale & retail | 2015 |
| West Drayton Superstore Ltd | Wholesale & retail | 2025 |
| West Ealing Phone Repair Limited | Wholesale & retail | 2025 |
| West END Living Ltd | Real estate | 2026 |
| West Guard Properties Limited | Real estate | 2024 |
| West London Builders Merchants Limited | Wholesale & retail | 2019 |
| West London Capital Ltd | Financial services | 2026 |
| West London College of Business & Management Sciences Limited | Education | 2005 |
| West London Community Travel and Tours Ltd | Administrative & support | 2018 |
| West London Fabric Limited | Wholesale & retail | 2016 |
| West London Fresh Fish & Grocery Ltd | Wholesale & retail | 2025 |
| West London Halal Limited | Wholesale & retail | 2026 |
| West London Handyman Ltd | Construction | 2015 |
| West London Insulation Services Limited | Construction | 2016 |
| West London Microcement Limited | Construction | 2026 |
| West London Professional College Ltd | Information & communication | 2008 |
| West London Turkish Volunteers Ltd | Education | 2018 |
| West Solicitors Ltd | Professional & scientific | 2025 |
| West Sterling Developments Ltd | Construction | 2023 |
| West Thames GAS Ltd | Construction | 2020 |
| Westbrook Primary School | Education | 2013 |
| Western Gold Limited | Real estate | 2015 |
| Western Housing (Bath Road) Limited | Construction | 2020 |
| Western Housing Limited | Real estate | 2017 |
| Western Properties Group Limited | Construction | 2020 |
| Western Property (Bulstrode) Limited | Real estate | 2021 |
| Western Property (Chestnut) Limited | Real estate | 2019 |
| Western Property (London Road) Limited | Real estate | 2023 |
| Western Property (London) Limited | Real estate | 2023 |
| Western Property (Purley) Limited | Real estate | 2021 |
| Western Property (Vegal) Limited | Real estate | 2023 |
| Western Property Limited | Real estate | 2019 |
| Western Tours Limited | Administrative & support | 2025 |
| Westgate Construction Limited | Construction | 2015 |
| Westgate Lifestyle Project Limited | Hospitality | 2008 |
| Westlink Trading Ltd | Wholesale & retail | 2025 |
| Westlondon Properties & LET Limited | Real estate | 2025 |
| Westlondonsecurity Ltd | Administrative & support | 2024 |
| Westside Automobiles Ltd | Wholesale & retail | 2023 |
| WET Bandits Moving Ltd | Transport & logistics | 2019 |
| Weybridge Investment Limited | Real estate | 2017 |
| WFP Clan Limited | Administrative & support | 2025 |
| Wgsa Limited | Real estate | 2003 |
| WH Installation Ltd | Construction | 2021 |
| WH INSTALLATION1 Ltd | Construction | 2024 |
| WH Malik Solicitors Ltd | Professional & scientific | 2024 |
| What a Life Fitness Ltd | Arts & recreation | 2013 |
| Wheelwerks Ltd | Wholesale & retail | 2018 |
| Whiscrypt Ltd | Wholesale & retail | 2025 |
| White Angel Management Limited | Real estate | 2018 |
| White Bear Restaurants Ltd | Hospitality | 2025 |
| White City Limited | Wholesale & retail | 2023 |
| White Diamond Properties Ltd | Real estate | 2023 |
| White Hill Consultancy Ltd | Transport & logistics | 2019 |
| White OWL Education Ltd | Education | 2024 |
| White Rock Acquisition Ltd | Real estate | 2020 |
| White Rock Development Limited | Construction | 2017 |
| Whitelane U.K. Limited | Wholesale & retail | 2019 |
| Whitewood Incorporation Ltd | Information & communication | 2023 |
| Whitton Flooring Ltd | Construction | 2021 |