| Vital 24 Healthcare Ltd | Health & social care | 2019 |
| Vitrum Glass Ltd | Construction | 2025 |
| Vmma Consulting Ltd | Professional & scientific | 2020 |
| VN Logistics Ltd | Other services | 2017 |
| Vorontsov Consulting Services Ltd | Information & communication | 2022 |
| W Bikes Ltd | Wholesale & retail | 2025 |
| Wackpapercoys Limited | Professional & scientific | 2022 |
| Walker Watson Financial Services Ltd | Financial services | 2013 |
| Wall Place Ltd | Extraterritorial | 2014 |
| Wallbank Building Contractors Ltd | Construction | 2016 |
| Wandering Worldwide Limited | Administrative & support | 2009 |
| Wanderlux Ltd | Administrative & support | 2018 |
| Wanderwell Ltd | Administrative & support | 2020 |
| Wandle Healthcare Services Ltd | Health & social care | 2013 |
| Warms Limited | Real estate | 1998 |
| Warwick Landscaping Holdings Limited | Financial services | 2021 |
| Waterade Holdings Limited | Manufacturing | 2023 |
| Waterade Ltd | Wholesale & retail | 2019 |
| Waymaker Analytica Ltd | Information & communication | 2023 |
| WE Love Accounts Ltd | Professional & scientific | 2012 |
| WE Love Local Guides Ltd | Professional & scientific | 2024 |
| WE Personalize Limited | Wholesale & retail | 2016 |
| WE2UDETAILING Ltd | Wholesale & retail | 2024 |
| Welcome Convenience Ltd | Wholesale & retail | 2023 |
| Wentworth Rest Home Limited | Health & social care | 1985 |
| West Installations Limited | Construction | 2019 |
| West Yorkshire Horseboxes Ltd | Manufacturing | 2015 |
| Westlands Farm 2021 LLP | | 2021 |
| Westnedge Estate Limited | Agriculture & fishing | 1978 |
| Wests Property Services Limited | Construction | 2016 |
| Westvale Home Care Ltd | Health & social care | 2019 |
| Wetrix Ltd | Extraterritorial | 2025 |
| Wheelthing Ltd | Wholesale & retail | 2020 |
| White & Co Property Holdings Limited | Real estate | 2026 |
| Whiteoak Property Developments Limited | Real estate | 2020 |
| Whiteoak Property Holdings Limited | Real estate | 2020 |
| Whiteoak Property Limited | Administrative & support | 2009 |
| Whiterock Ventures Limited | Financial services | 2010 |
| Wicked Vinyl Limited | Manufacturing | 2016 |
| Wickens Trading Ltd | Wholesale & retail | 2023 |
| Wickham Property & Consultancy Limited | Real estate | 2017 |
| Wickmane Limited | Construction | 2003 |
| Wigsip Limited | Wholesale & retail | 2026 |
| Wilderness Witches Ltd | Wholesale & retail | 2025 |
| Wilf's Cafe Ltd | Hospitality | 2024 |
| Wilkinson Housing Ltd | Real estate | 2021 |
| Will Ayres Properties Limited | Information & communication | 2013 |
| William Tarrant House Limited | Households | 2024 |
| William Thomson Design Ltd | Construction | 2025 |
| Willows Avenue 1962 Limited | Extraterritorial | 2014 |
| Winfield Aviation Limited | Manufacturing | 2026 |
| Wishfulpainting Ltd | Construction | 2020 |
| Wits END Management Limited | Professional & scientific | 1995 |
| WM Electrical Ltd | Construction | 2026 |
| Women's Golf Lounge Ltd | Arts & recreation | 2025 |
| Wood Floors 2U Ltd | Wholesale & retail | 2026 |
| Woodford Aviation Consulting Ltd | Professional & scientific | 2021 |
| Woodhams Property Ltd | Real estate | 2019 |
| Woodjetts Construction Limited | Construction | 2019 |
| Woodland Dogs (Franchising) Limited | Administrative & support | 2009 |
| Woodland Dogs Ltd | Arts & recreation | 2005 |
| Workbox Music Limited | Education | 2020 |
| World Health AI Ltd | Hospitality | 2024 |
| World Pharma AI Limited | Administrative & support | 2025 |
| Worldwide Shopping Ltd | Wholesale & retail | 2024 |
| WOW Brows Studio Ltd | Other services | 2025 |
| WPB Consulting Ltd. | Information & communication | 2017 |
| Wraylands 2 Ltd | Real estate | 2025 |
| WY Horseboxes Ltd | Manufacturing | 2015 |
| Wynnie and Wylder Limited | Hospitality | 2025 |
| XJ Logistic Ltd | Transport & logistics | 2013 |
| XL-K9 Ltd | Professional & scientific | 2020 |
| Xolify Ltd | Information & communication | 2014 |
| Xolxol Pharma Ltd | Wholesale & retail | 2023 |
| Xpac Ltd | Financial services | 2026 |
| Xponential Property Ltd | Real estate | 2019 |
| Xsite Leisure Ltd | Arts & recreation | 2022 |
| XXX Lesley-Anne Limited | Extraterritorial | 2025 |
| Yardley Taxis Ltd | Transport & logistics | 2015 |
| Yasemins Gowns @ Simply Beautiful Ltd | Wholesale & retail | 2014 |
| Yetz Healthcare Limited | Health & social care | 2023 |
| Yildiz 63 Ltd | Hospitality | 2024 |
| Yorkiees Ltd | Hospitality | 2025 |
| YOU Personnel Ltd | Administrative & support | 2017 |
| Your Footwear Solutions Horley Limited | Wholesale & retail | 2014 |
| Your Traders Ltd | Construction | 2022 |
| YUD YUD Events Ltd | Arts & recreation | 2026 |
| Yummy Tummy Ltd | Hospitality | 2024 |
| Zaidi Brothers Limited | Wholesale & retail | 2024 |
| Zaman Property Management Limited | Real estate | 2022 |
| Zassr Ltd | Wholesale & retail | 2004 |
| ZEA AI Limited | Information & communication | 2025 |
| ZEE Cars 25 Limited | Transport & logistics | 2025 |
| ZEE Cars Ltd | Wholesale & retail | 2015 |
| Zeegrid Limited | Manufacturing | 2023 |
| Zeena B'S Plant Nursery Ltd | Agriculture & fishing | 2021 |
| ZEN Hospitality Limited | Hospitality | 2025 |
| ZENITH89 Limited | Health & social care | 2024 |
| Zenithserenity Limited | Wholesale & retail | 2024 |
| Zikajo Ltd | Transport & logistics | 2023 |