| WDS Digital Media Limited | Information & communication | 2016 |
| WE ARE KIN Studio Ltd | Professional & scientific | 2026 |
| WE ARE Perfectionists Ltd | Education | 2019 |
| WE Clean ANY Surface Ltd | Administrative & support | 2020 |
| WE Construction, Fencing & Landscapes Ltd | Construction | 2024 |
| WE Create YOU Celebrate Ltd | Hospitality | 2022 |
| WE FIX N E Car Limited | Wholesale & retail | 2010 |
| WE FIX Windows U.K. Ltd | Construction | 2026 |
| WE Mgmt Ltd | Professional & scientific | 2023 |
| WE Popin Limited | Hospitality | 2026 |
| WE Provide Temps Ltd | Wholesale & retail | 2019 |
| WE Repair ANY Roof Ltd | Construction | 2020 |
| WE Support YOU Limited | Administrative & support | 2020 |
| WE Train YOU Gain Limited | Arts & recreation | 2018 |
| WE4SAFE Ltd | Wholesale & retail | 2018 |
| WEA Medical Services Ltd | Health & social care | 2024 |
| Wealth Training Centre Ltd | Administrative & support | 2026 |
| Wearmouth Communications Ltd | Professional & scientific | 2017 |
| Wearwell Cycle Company Limited | Wholesale & retail | 2016 |
| Weatherley Homes 2015 Ltd | Construction | 2015 |
| Weathershield Renewables Limited | Construction | 2025 |
| Weathershield Roofing & Guttering Services Ltd | Construction | 2022 |
| Weathershield Solar UK Limited | Construction | 2026 |
| Weavers Grange (Bozeat) Management Company Limited | Households | 2024 |
| Web Alliance Limited | Information & communication | 2012 |
| Web Demon Ltd | Information & communication | 2008 |
| Web DEV 786 Labs Ltd | Information & communication | 2024 |
| Web Enterprise Business Solutions Ltd | Information & communication | 1999 |
| Web Goat Ltd | Information & communication | 2015 |
| Web Seller Pro Limited | Information & communication | 2013 |
| Web-Bookings.Net Limited | Information & communication | 2007 |
| Web-It Systems Limited | Professional & scientific | 2002 |
| Webb Hire Purchase Co Limited | Professional & scientific | 1970 |
| Webb House Accountancy Limited | Professional & scientific | 2015 |
| Webb House Limited | Professional & scientific | 2007 |
| Webb Infra Ltd | Wholesale & retail | 2018 |
| Webbdrive Ltd | Transport & logistics | 2020 |
| Webdelve Limited | Information & communication | 2015 |
| Webelectrix Ltd | Information & communication | 2013 |
| Webim Limited | Professional & scientific | 2017 |
| Webnflix Limited | Information & communication | 2024 |
| Webster Holdco Ltd | Financial services | 2019 |
| Webuildyourai Ltd | Information & communication | 2025 |
| Wedding Cars Northampton Ltd | Transport & logistics | 2023 |
| Weedon Delight Limited | Hospitality | 2023 |
| Weedon Flavour Ltd | Hospitality | 2025 |
| Weedon MOT Limited | Wholesale & retail | 2024 |
| Weedon Road Management Company Limited | Households | 2005 |
| Weedwise Limited | Administrative & support | 2000 |
| Weekend Wheels Driving School Ltd | Education | 2019 |
| Weera Estates Ltd | Real estate | 2026 |
| Weesa Ltd | Administrative & support | 2025 |
| Wegetu Ltd | Education | 2025 |
| Weird Waves Ltd | Information & communication | 2022 |
| Welchs Close Management Company Ltd | Households | 2021 |
| Weldpro Limited | Construction | 2024 |
| Welfix Solutions Limited | Administrative & support | 2020 |
| Welford Pre-School | Education | 2007 |
| Welford Truckstop Limited | Hospitality | 2000 |
| Well Cementing Consultants Ltd | Professional & scientific | 2025 |
| Welland Valley Football Club | Arts & recreation | 2013 |
| Wellbeing Chiropractic Ltd | Health & social care | 2017 |
| Wellbeing Learning Group Limited | Health & social care | 2026 |
| Wellcare Measurements Ltd | Health & social care | 2014 |
| Wellingborough Amateur Boxing Club CIC | Arts & recreation | 2021 |
| Wellingborough Road Surgery Ltd | Health & social care | 2019 |
| Wellington Ladies Welfare League Ltd | Information & communication | 2024 |
| Wellington Waterloo Limited | Hospitality | 2019 |
| Wellness Collective Enterprises Ltd | Arts & recreation | 2022 |
| Wellness Gate Limited | Health & social care | 2025 |
| Wellness Integrated Ventures Limited | Health & social care | 2026 |
| Wellness Locations Ltd | Hospitality | 2026 |
| Wells IE Ltd | Construction | 2015 |
| Wellskin Group Ltd | Wholesale & retail | 2025 |
| Wellspring Partners Ltd | Real estate | 2022 |
| Wellwell Medical Ltd | Professional & scientific | 2016 |
| Welly Cafe Ltd | Hospitality | 2024 |
| Welodia Investment Ltd | Real estate | 2024 |
| WELOVESTYLE100 Ltd | Other services | 2020 |
| Weltec Electrical Services Limited | Construction | 2003 |
| Welton Gate Limited | Real estate | 2015 |
| WEM Civils Ltd | Construction | 2022 |
| Wemaxtalent Ltd | Professional & scientific | 2026 |
| Wembley Medical Limited | Extraterritorial | 2008 |
| Wemoveanygoods.Com Ltd | Transport & logistics | 2020 |
| Wendom Celesta Limited | Health & social care | 2024 |
| Wendover Education Ltd | Education | 2013 |
| Wendy's Sweet Shop Limited | Wholesale & retail | 2019 |
| Wenlodia (UK) Limited | Real estate | 2021 |
| Wentink Hospitality Limited | Hospitality | 2019 |
| Wentwood House Dental Practice Limited | Health & social care | 2006 |
| Wentworth & Jeffries Limited | Construction | 2018 |
| Wentworth Alexander Ltd | Financial services | 2011 |
| Weseehope | Other services | 2000 |
| Wesnes Bowbridge Limited | Households | 2013 |
| Wesnes Cognition Limited | Professional & scientific | 2009 |
| Wesnes Kings Lynn Limited | Households | 2011 |
| Wesnes Milton Keynes Limited | Households | 2011 |
| West & Co Properties Limited | Real estate | 2024 |
| West Common Developments Limited | Real estate | 2013 |