| WE Spray Coatings Ltd. | Construction | 2025 |
| WE2 Ventures Ltd | Wholesale & retail | 2025 |
| WE8 Venture Ltd | Wholesale & retail | 2025 |
| WEACTIVE9 Ltd | Information & communication | 2021 |
| Wealth and Tax Group Limited | Financial services | 2016 |
| Wealth and Tax Management Services Limited | Professional & scientific | 2008 |
| Wealth Counselling Limited | Professional & scientific | 2017 |
| Wealth Craft Limited | Transport & logistics | 2021 |
| Wealth Dragons UK Limited | Education | 2026 |
| Wealth Enterprises Capital Group Limited | Information & communication | 2020 |
| Wealth Magic Limited | Information & communication | 2024 |
| Wealthbridge Consultancy Limited | Professional & scientific | 2025 |
| Wealthly Tech Ltd | Information & communication | 2024 |
| Wear Multhair Ltd | Other services | 2018 |
| Weare IT Limited | Information & communication | 2026 |
| WEARE5GT Limited | Information & communication | 2021 |
| Wearesoftiq Ltd | Information & communication | 2022 |
| Wearespacecraft Ltd | Extraterritorial | 2021 |
| Weatherhead Farm B&B Limited | Extraterritorial | 2012 |
| Weatherheads Television Limited | Real estate | 1958 |
| Weave Intelligence Limited | Manufacturing | 2014 |
| Weavor Carpets Ltd | Construction | 2025 |
| Web & Mobile Solutions Ltd | Information & communication | 2011 |
| Web Automotive Solutions Ltd | Wholesale & retail | 2020 |
| Web Control (UK) Limited | Information & communication | 2000 |
| Web Control Solutions Ltd. | Information & communication | 2015 |
| Web Excel Consulting Limited | Information & communication | 2013 |
| WEB3 Insights Limited | Education | 2025 |
| Webb Accountancy Services Limited | Professional & scientific | 2005 |
| Webb Agency Ltd | Information & communication | 2013 |
| Webb Sight Consultancy Ltd | Professional & scientific | 2012 |
| Webberwocky Limited | Information & communication | 2012 |
| Webdeck Ltd | Information & communication | 2021 |
| Webkrafts Ltd | Information & communication | 2010 |
| Weblight Limited | Manufacturing | 1970 |
| Weblogix Limited | Information & communication | 2015 |
| Webonline Digital Ltd | Information & communication | 2017 |
| Webridge Solutions Ltd | Information & communication | 2018 |
| Webshopflowers.Nl Ltd | Wholesale & retail | 2019 |
| Websp Ltd | Information & communication | 2025 |
| Webstar Travels Ltd. | Administrative & support | 2011 |
| Webster Schaeff & Co 2000 | | 1992 |
| Webstudio Marketing Limited | Information & communication | 2024 |
| Websure Management Ltd | Professional & scientific | 2024 |
| Webtract Ltd | Information & communication | 2024 |
| Webtrickery Limited | Information & communication | 2023 |
| Wecare Surgery Limited | Other services | 2019 |
| Wecontractyou Limited | Administrative & support | 2023 |
| WED2B Limited | Wholesale & retail | 2009 |
| Wedding Diaries Ltd | Information & communication | 2025 |
| Wedding Dress Factory Outlet Limited | Extraterritorial | 2014 |
| Wedgewood Close Limited | Administrative & support | 2020 |
| Weed Robot Ltd | Other services | 2024 |
| Weedon Court Management Company Limited | Households | 1985 |
| Weee-It Logistics Services Ltd | Information & communication | 2019 |
| Weerasinghe Global Investments UK Limited | Real estate | 2024 |
| Wehavepowers (WHP) Creative Ltd. | Professional & scientific | 2008 |
| Wehk Limited | Wholesale & retail | 2022 |
| WEI FU KJ Ltd. | Wholesale & retail | 2025 |
| WEI Ming LI Ltd. | Wholesale & retail | 2025 |
| Weisheng International Culture Media Limited | Wholesale & retail | 2025 |
| Weiyou Entertainment Ltd | Professional & scientific | 2025 |
| Wejman Transport Ltd | Transport & logistics | 2015 |
| Wekanhire (Leasing, Sales and Service) Limited | Administrative & support | 1994 |
| Wekbo Ltd | Construction | 2021 |
| Wela Design Limited | Information & communication | 2025 |
| Welcome to OUR Home Ltd | Real estate | 2020 |
| Weld-A-Car Garage Limited | Wholesale & retail | 2018 |
| Welensky Home Improvement Ltd | Construction | 2021 |
| Welinkapp Ltd | Information & communication | 2025 |
| Well & Able Supported Living Ltd | Health & social care | 2023 |
| Well Bueno Ltd | Wholesale & retail | 2026 |
| Well Nourished Nutrition Ltd | Other services | 2025 |
| Well Tech Intelligence Holdings Ltd | Professional & scientific | 2020 |
| Well Women Centre | Health & social care | 2004 |
| Well-Max (U.K.) Limited | Wholesale & retail | 2020 |
| Wellbuild Group Limited | Construction | 2020 |
| Wellbuild Timber Frame Limited | Manufacturing | 2018 |
| Weller Electrical Ltd | Construction | 2025 |
| Wellness Care Provider Ltd | Administrative & support | 2020 |
| Wellness NOW Ltd | Wholesale & retail | 2024 |
| WELLNESS4LIFE Ltd | Health & social care | 2025 |
| Wellpoint Group Limited | Administrative & support | 2001 |
| Wells Haulage Ltd | Transport & logistics | 2020 |
| Wells Varty Properties Ltd | Real estate | 2022 |
| Wellsprings Solutions Limited | Wholesale & retail | 2024 |
| Weltech Projects Limited | Professional & scientific | 2014 |
| Welton Place Limited | Financial services | 2015 |
| Welworth Store Limited | Wholesale & retail | 2018 |
| Wembley Music Centre Ltd | Wholesale & retail | 1993 |
| Wembley Music Property Holdings Limited | Financial services | 2014 |
| Wembley Music Property Limited | Real estate | 2014 |
| Wemw Investments Unlimited | Other services | 2023 |
| WEN an ZHU Ltd. | Wholesale & retail | 2025 |
| WEN CAI YE Ltd. | Wholesale & retail | 2025 |
| WEN Feng Zhang Ltd. | Wholesale & retail | 2025 |
| Wenamane Ltd | Wholesale & retail | 2024 |
| Wenford IT Limited | Information & communication | 2021 |
| Wenval Aviation Ltd | Professional & scientific | 2012 |
| Wepartner Consulting Limited | Professional & scientific | 2018 |