| Winep 54 Limited | Extraterritorial | 1970 |
| Winep 55 Limited | Extraterritorial | 1986 |
| Winep 56 Limited | Extraterritorial | 1976 |
| Winep 57 Limited | Extraterritorial | 2002 |
| Winep 60 Limited | Extraterritorial | 1999 |
| Winep 61 Limited | Extraterritorial | 1980 |
| Winep 62 Limited | Extraterritorial | 2009 |
| Winep 63 Limited | Extraterritorial | 2005 |
| Winep 67 Limited | Extraterritorial | 2001 |
| Winep 693 Limited | Extraterritorial | 1987 |
| Winep 70 Limited | Extraterritorial | 2017 |
| Winep 71 Limited | Extraterritorial | 2018 |
| Winep 76 Limited | Extraterritorial | 2022 |
| WINEP3 Limited | Extraterritorial | 1984 |
| Winplan (UK) Limited | Administrative & support | 1997 |
| WIQ Holdings Limited | Real estate | 2022 |
| Wircester Manor Management Company Limited | Households | 2015 |
| Wired Electrical Contractors Ltd | Construction | 2022 |
| Wireless IQ Limited | Information & communication | 2017 |
| Wisdom Data Solutions Ltd | Information & communication | 2016 |
| Wisdom Real Estates Limited | Real estate | 2019 |
| Wise Bidco Limited | Financial services | 2021 |
| Wise Midco 2 Limited | Financial services | 2021 |
| Wise Midco Limited | Financial services | 2021 |
| Wise Tax Limited | Extraterritorial | 2023 |
| Wise Topco Limited | Financial services | 2021 |
| Wiseman Motor Services Limited | Wholesale & retail | 2009 |
| Wises Farm (East Challow) Limited | Construction | 2020 |
| Wishing Well Gardens and Landscaping Limited | Administrative & support | 2017 |
| With Bells and Whistles Ltd | Construction | 2023 |
| With Wise Limited | Information & communication | 2019 |
| Witt and Berg Limited | Wholesale & retail | 2016 |
| Wizard Strategy Consultants Ltd | Professional & scientific | 2011 |
| Wizz Electric Limited | Wholesale & retail | 2018 |
| Wizzleworld Dramatics C.I.C. | Education | 2013 |
| Wizzleworld Ltd | Education | 2012 |
| WJC Oils Ltd | Manufacturing | 2018 |
| Wktc Property Ltd | Real estate | 2025 |
| WLF Innovations Ltd | Professional & scientific | 2017 |
| WM Business Solutions Ltd | Information & communication | 2020 |
| WM Financial Advisers Ltd | Financial services | 2023 |
| WM Property Portfolio Limited | Real estate | 2019 |
| WN Corporate Limited | Financial services | 2024 |
| WN Corporate Services 1 Limited | Financial services | 2023 |
| WN Corporate Services Trading Limited | Information & communication | 1994 |
| Woden Capital Limited | Real estate | 2019 |
| WOK2EAT Ltd | Extraterritorial | 2021 |
| Wolf Gemini Limited | Financial services | 2016 |
| Wombwell Foundry Limited | Professional & scientific | 1981 |
| Women's Total Abstinence Educational Union Limited | Health & social care | 1951 |
| Wonderland Group Ltd | Financial services | 2025 |
| Wondrin Ltd | Other services | 2019 |
| Wong's 91 Limited | Hospitality | 2017 |
| Wong's Taste Limited | Hospitality | 2025 |
| WOO21 Holdings Limited | Financial services | 2022 |
| Wood Dental Limited | Health & social care | 2007 |
| Wood Floor & Carpet Studio Ltd | Wholesale & retail | 2023 |
| Wood Flooring Association Limited | Other services | 2006 |
| Wood Vaughan Limited | Wholesale & retail | 2014 |
| Woodhouse Farm (Midlands) Limited | Agriculture & fishing | 2022 |
| Woodland View Property Management Limited | Households | 2018 |
| Woodlands Amenity Management Company Limited | Households | 2002 |
| Woodlands Court Management (Coventry) Limited | Households | 1966 |
| Woodlands Green Staplehurst Management Company Limited | Households | 2018 |
| Woodlands Park (BVP) Management Company Limited | Households | 2019 |
| Woodlawn Management Limited | Households | 1985 |
| Woodlawn Property Investments Ltd | Real estate | 2020 |
| Woodplace Limited | Financial services | 2021 |
| Woods Barn Limited | Wholesale & retail | 2017 |
| Woods Farm Limited | Wholesale & retail | 2021 |
| Woodsense Flooring Ltd | Wholesale & retail | 2025 |
| Woodside Investments Limited | Professional & scientific | 2013 |
| Woodside IT Ltd | Information & communication | 2013 |
| Woodside PT Limited | Other services | 2019 |
| Woodson Limited | Real estate | 2018 |
| Woodtor Properties Limited | Real estate | 2006 |
| Woodward Consultants Limited | Administrative & support | 2009 |
| Woodway Building Solutions Limited | Construction | 2026 |
| Wootton International (UK) Limited | Mining & quarrying | 2016 |
| Worcester Assets Holdings Limited | Administrative & support | 2023 |
| Worcester Assets One Limited | Extraterritorial | 2024 |
| Worcester Assets Two Limited | Extraterritorial | 2024 |
| Worcestershire Inns Limited | Hospitality | 2019 |
| Wordbench Ltd | Professional & scientific | 2021 |
| Wordsmith Communication UK Limited | Professional & scientific | 2009 |
| Work Wellness Limited | Health & social care | 2016 |
| Workdoc Ltd | Information & communication | 2025 |
| Working Space Property Ltd | Real estate | 2020 |
| Working Space Surveying Ltd | Professional & scientific | 2013 |
| Worktaster Ltd | Education | 2014 |
| World of Nishikigoi Ltd | Information & communication | 2022 |
| Worldstar Textiles & Trading Co (UK) Ltd | Wholesale & retail | 2017 |
| Worth IT Animal Rescue Ltd | Other services | 2021 |
| WOW 4 Schools Limited | Other services | 2022 |
| WOW Active Enterprise Ltd | Other services | 2022 |
| WOW Active Ltd | Other services | 2021 |
| WOW HOW Ltd | Information & communication | 2015 |
| Wozzle Properties Limited | Construction | 2018 |
| WP Management Limited | Administrative & support | 2018 |
| WR Management Ltd | Real estate | 2023 |