| Voltwise Electrical Ltd | Construction | 2023 |
| Voovodenet Limited | Information & communication | 2022 |
| Vora Technologies Limited | Information & communication | 2026 |
| Vougevale Properties Limited | Real estate | 2025 |
| Voytel Limited | Manufacturing | 2022 |
| VP1 Limited | Wholesale & retail | 2025 |
| VR Servicess Limited | Administrative & support | 2025 |
| Vroma Limited | Wholesale & retail | 2014 |
| VS REF Limited | Professional & scientific | 2024 |
| VS Southport Ltd | Wholesale & retail | 2023 |
| VS Traders Limited | Wholesale & retail | 2023 |
| Vsimos Limited | Wholesale & retail | 2018 |
| VT Windows Ltd | Construction | 2018 |
| Vtol Transport Ltd | Manufacturing | 2023 |
| VTV Solutions Limited | Administrative & support | 2007 |
| Vynus Designs Ltd | Information & communication | 2024 |
| W H Jones Timber Sales Limited | Wholesale & retail | 2003 |
| W S Henderson & Son,Limited | Manufacturing | 1942 |
| W Shane Ltd | Other services | 2021 |
| W&F Management Limited | Real estate | 2022 |
| W. M. B. (Installations) Limited | Construction | 1982 |
| W.& C.French(Construction)Limited | Extraterritorial | 1968 |
| W1K Limited | Real estate | 2024 |
| WA MCR Ltd | Extraterritorial | 2006 |
| Wada MCR Ltd | Extraterritorial | 2018 |
| Wadham Estates Ltd | Real estate | 2022 |
| Wadville Ltd | Extraterritorial | 2010 |
| Wafra Estates Limited | Real estate | 2025 |
| Wagda Ltd | Wholesale & retail | 2023 |
| Wahala MCR Ltd | Hospitality | 2022 |
| Wahbella Ltd | Wholesale & retail | 2022 |
| Waist Beads by Nora Ltd | Manufacturing | 2025 |
| Waiting List Services Ltd | Construction | 2016 |
| Wakanda NA Biso C.I.C. | Other services | 2023 |
| Wakatipu Holdings Ltd | Financial services | 2025 |
| Wakefield Trinity Ltd | Professional & scientific | 2017 |
| Wala Operating Ltd | Hospitality | 2025 |
| Waldemar Brzezinski Ltd | Transport & logistics | 2017 |
| Walds Trading Ltd | Wholesale & retail | 2009 |
| Walk the Plank | Arts & recreation | 1995 |
| Walkbridge Ltd | Real estate | 2018 |
| Walkden Discount Store Limited | Wholesale & retail | 2025 |
| Wallasey Estates Ltd | Real estate | 2026 |
| Wallgate Estate Company Limited | Other services | 2021 |
| Wallgate Estate Holdings Limited | Other services | 2021 |
| Wallstyle Ltd | Construction | 2023 |
| Wallworks DC Limited | Construction | 2024 |
| Wals Barber Ltd | Other services | 2025 |
| Walsh's Maintenance Services Ltd | Construction | 2010 |
| Walshaw Greental Investments Ltd | Real estate | 2022 |
| Waltham Cross Estates Ltd | Other services | 2018 |
| Walton Road Liverpool Ltd | Other services | 2017 |
| Wanderjet Limited | Manufacturing | 2021 |
| Wanlii Manchester Limited | Hospitality | 2024 |
| Wansford Property Ltd | Financial services | 2018 |
| Wapping Estates Limited | Extraterritorial | 2020 |
| Ward Integrated Systems Limited | Administrative & support | 2015 |
| Wareing Property Group Ltd | Construction | 2024 |
| Wari Runa Ltd | Wholesale & retail | 2021 |
| Warminster 2011 Limited | Professional & scientific | 2019 |
| Warrel Ltd | Health & social care | 2018 |
| Warrington Estates Ltd | Extraterritorial | 2025 |
| Warrington Greental Investments Ltd | Real estate | 2025 |
| Warta Deli Limited | Wholesale & retail | 2019 |
| Warth Business Holdings Limited | Other services | 2020 |
| WAS Assets Ltd | Real estate | 2026 |
| Washcity Limited | Information & communication | 2026 |
| Washington Real Estates Limited | Other services | 2020 |
| Wasjig Limited | Professional & scientific | 2015 |
| Waste Metal Processing Ltd | Water & waste | 2021 |
| Water and Heat Limited | Construction | 2007 |
| Waterhouse Gardens Manco Limited | Households | 2025 |
| Waterhouse Homes Limited | Construction | 2013 |
| Waterleigh Developments Ltd | Construction | 2026 |
| Waterley Limited | Real estate | 2021 |
| Waterpark Consulting Ltd | Other services | 2019 |
| Waterpark Hall Management Company Limited | Real estate | 2001 |
| Waterpark Investments Limited | Real estate | 2020 |
| Waterpark Road Estates Limited | Real estate | 2019 |
| Waterside Cafe and Food Limited | Hospitality | 2014 |
| Waterson Consulting Ltd | Information & communication | 2019 |
| Waterwood Holdings Ltd | Professional & scientific | 2022 |
| Watford Health Campus Limited | Administrative & support | 2017 |
| Watford Health Campus Neighbourhood Square LLP | | 2017 |
| Watford Health Campus Partnership LLP | | 2013 |
| Watford Riverwell (Central Zone) LLP | | 2023 |
| Watford Riverwell (Family Housing) LLP | | 2018 |
| Watford Riverwell Management Company Limited | Real estate | 2019 |
| Watling Leather & Furniture Ltd | Wholesale & retail | 2020 |
| Watson Church Wharf Limited | Construction | 2023 |
| Watson Construction (Holdings) Ltd | Financial services | 2020 |
| Watson Construction Ltd | Construction | 2013 |
| Watson Land Limited | Real estate | 2024 |
| Watson Pollard Projects Limited | Construction | 2022 |
| Watson Properties 1 Ltd | Real estate | 2023 |
| Watson Properties 2 Ltd | Real estate | 2023 |
| Watson Property SPV Ltd | Real estate | 2023 |
| Watson Rental Properties Ltd | Real estate | 2024 |
| Watson ST Boniface Ltd | Real estate | 2025 |
| WAV Resources Limited | Water & waste | 2016 |