| Wayside Property Holdings Ltd | Real estate | 2022 |
| Waystar Motors Ltd | Wholesale & retail | 2026 |
| Wazza ALI Ltd | Professional & scientific | 2017 |
| WB Origin Ltd | Information & communication | 2025 |
| WBZ Cars Limited | Wholesale & retail | 2023 |
| WD Construction (Harpenden) Limited | Construction | 2025 |
| WE ARE a Marketing Company Limited | Professional & scientific | 2017 |
| WE ARE Can?Did! HR Ltd | Professional & scientific | 2021 |
| WE Buy ANY Door Ltd | Administrative & support | 2022 |
| WE Discount Limited | Wholesale & retail | 2025 |
| WE Drop Limited | Information & communication | 2018 |
| WE FIX 24 Ltd | Construction | 2024 |
| WE GET ANY Stock Ltd | Wholesale & retail | 2012 |
| WE One UK Limited | Professional & scientific | 2013 |
| WE Payroll Services Limited | Other services | 2017 |
| WE Secure Services Limited | Administrative & support | 2025 |
| WE Sell Car Parts Ltd | Wholesale & retail | 2019 |
| WE Sell DIY Ltd | Wholesale & retail | 2022 |
| We'Ll Haul IT Ltd | Transport & logistics | 2026 |
| Weadon AUC Limited | Real estate | 2024 |
| Wealth Matters Financial Planning LLP | | 2012 |
| Wealth Matters Trusts Limited | Financial services | 2020 |
| Wearfitz Ltd | Manufacturing | 2025 |
| Weaselwerkz Ltd | Wholesale & retail | 2020 |
| Weather DRY Roofing Ltd | Construction | 2024 |
| Web Designer Luton Ltd | Information & communication | 2024 |
| Web Loop Services Ltd | Professional & scientific | 2023 |
| Webbex Holdings Limited | | 1988 |
| Webbex Limited | | 1964 |
| Webcrew Ventures Limited | Administrative & support | 2026 |
| Webmarket Solutions Ltd | Wholesale & retail | 2024 |
| Webox . Ltd | Wholesale & retail | 2022 |
| Webrixglobal Limited | Manufacturing | 2026 |
| Webroot Limited | Information & communication | 2025 |
| Webzine Ltd | Information & communication | 2023 |
| Wedding Bubble Cars Ltd | Administrative & support | 2002 |
| Wedding Cars Luton Ltd | Transport & logistics | 2023 |
| Wedding Workshop Design Limited | Manufacturing | 2019 |
| Weeklybargain Ltd | Wholesale & retail | 2014 |
| Wefix Electrical Services Ltd | Construction | 2025 |
| Wehavethemegapixels Ltd | Information & communication | 2017 |
| Wekhans Ltd | Wholesale & retail | 2024 |
| Weknow Construction Ltd | Construction | 2017 |
| Welbeck Mews Freehold Limited | Households | 2022 |
| Welclose Street Management Limited | Households | 2002 |
| Welcomehomes Estate Limited | Real estate | 2025 |
| Weldbyjns Ltd | Manufacturing | 2025 |
| Welearn Ltd | Education | 2023 |
| Welfare Health and Safety Academy Limited | Education | 2021 |
| Welfare HS Solutions Ltd | Administrative & support | 2025 |
| Welkin Blue Event Solutions Ltd | Hospitality | 2025 |
| Well Cabled Limited | Construction | 2015 |
| Wellcom Properties Limited | Real estate | 2024 |
| Wellcura Ltd | Wholesale & retail | 2025 |
| Wellgate Motors Ltd | Wholesale & retail | 2025 |
| Wellingborough Takeaway Limited | Hospitality | 2017 |
| Wellinghouse Ltd | Real estate | 2019 |
| Wellington Court (Hemel Hempstead) Management Company Limited | Real estate | 2009 |
| Wellness Cups Ltd | Education | 2022 |
| Wellness Gold Ltd | Wholesale & retail | 2020 |
| Wellness World Connect Ltd | Health & social care | 2025 |
| Wells Garage Luton Ltd | Wholesale & retail | 2022 |
| Wellsuites Ltd | Information & communication | 2025 |
| Wellth Impact Investments Limited | Financial services | 2022 |
| Welltonyservices Ltd | Manufacturing | 2026 |
| Welwyn Drives Ltd | Construction | 2025 |
| Welwyn Garden City Taxi Service Limited | Transport & logistics | 2020 |
| Welwyn Repair Centre Ltd | Wholesale & retail | 2024 |
| Welwyn Wentworth Ltd | Extraterritorial | 2016 |
| Wembley Prime Properties Ltd | Real estate | 2023 |
| Wendforth Limited | Real estate | 1981 |
| Wenlock Developments Limited | Administrative & support | 2002 |
| Wenlock Homes Ltd | Construction | 2017 |
| Werox Leather Ltd | Wholesale & retail | 2025 |
| Weserflo Ltd | Other services | 2026 |
| West 5 International Properties (UK) Ltd | Real estate | 2020 |
| West 5 Properties (U.K) Ltd | Real estate | 2024 |
| West Coast Fire Services Ltd | Construction | 2023 |
| West Coast MEP Ltd | Construction | 2017 |
| West Coast Property Ltd | Real estate | 2018 |
| West Goods Ltd | Wholesale & retail | 2026 |
| West Street Dunstable Management Limited | Households | 2002 |
| Westbourne Pharmacy Limited | Wholesale & retail | 2000 |
| Westbrooke Properties Ltd | Real estate | 2023 |
| Westbury Gardens Ltd | Hospitality | 2021 |
| Westendhealthcare Ltd | Administrative & support | 2016 |
| Western Court Management (Luton) Company Limited | Households | 2001 |
| Western Parks (Bramingham) Limited | Real estate | 1989 |
| Westgate Court Flats (Dunstable) Management Company Limited | Households | 1989 |
| Weststar Services Ltd | Construction | 2006 |
| Westward Property Group Limited Ltd | Real estate | 2026 |
| Westway Fish & Chips Ltd | Hospitality | 2018 |
| Westway Luton Ltd | Hospitality | 2025 |
| Westwise Holding Group Ltd | Mining & quarrying | 2025 |
| Wetherall Mews Management Company Limited | Households | 2007 |
| WF Doors & Renovations Ltd | Construction | 2026 |
| WH Foods Ltd | Hospitality | 2022 |
| WH Housing Management CIC | Real estate | 2023 |
| WH Investment Group Ltd | Real estate | 2023 |
| WH Traders Ltd | Wholesale & retail | 2020 |