| Wealden Scaffolding Ltd | Construction | 2024 |
| Wealden Van Sales Ltd | Wholesale & retail | 2025 |
| Wealth Improvement Planning Limited | Extraterritorial | 2011 |
| Wealth Improvement Solutions Limited | Extraterritorial | 2011 |
| Wealth Medics Ltd | Other services | 2021 |
| Wears My Accessories Limited | Wholesale & retail | 2011 |
| Weaver Brothers (Roofing) Ltd | Construction | 2004 |
| Weaver Brothers Developments Limited | Construction | 2024 |
| Weavers Production Ltd | Information & communication | 2023 |
| Webmeridian E-Commerce Software Ltd | Information & communication | 2019 |
| WED Films Limited | Information & communication | 2025 |
| Weddingbird Ltd | Hospitality | 2018 |
| Wedmore Dental Practice Limited | Health & social care | 2012 |
| Wedo Consultancy Ltd | Professional & scientific | 2016 |
| Wedwabbit Productions Ltd | Information & communication | 2025 |
| Weekend Limited | Professional & scientific | 2015 |
| Weeradge Ltd | Hospitality | 2019 |
| Weir Management Limited | Professional & scientific | 2022 |
| Welcroft LEE Logistics Ltd | Water & waste | 2026 |
| Well Care 24/7 (London) Ltd | Administrative & support | 2022 |
| Wellers of Polegate (Landscapes) Limited | Wholesale & retail | 1979 |
| Welles UW Holdings Limited | Financial services | 2010 |
| Wellness Urology Ltd | Health & social care | 2023 |
| Wells Sustainable Solutions Ltd | Administrative & support | 2023 |
| Wellsecure Ltd | Professional & scientific | 2025 |
| Wennovate DMC Ltd | Administrative & support | 2023 |
| Wentworth Global Ltd | Extraterritorial | 2023 |
| Weshopyoushop Ltd | Wholesale & retail | 2023 |
| West Court Residents Management Company Limited | Households | 1996 |
| West END Studios Holdings Limited | Financial services | 2023 |
| West END Studios Limited | Administrative & support | 1991 |
| West END Studios Properties Limited | Real estate | 2023 |
| West END Studios Unit 1 Ltd | Real estate | 2023 |
| West House RTM Company Limited | Households | 2010 |
| West Oak Investments Ltd | Financial services | 2018 |
| West Rocks Hotel Ltd | Hospitality | 2013 |
| West Rocks Management Ltd | Hospitality | 2013 |
| West Street Mews Management Limited | Households | 1997 |
| West Street Press Ltd | Information & communication | 2019 |
| West&Sons Ltd | Other services | 2019 |
| Westbury Flats (Eastbourne) Limited(The) | Households | 1967 |
| Westdown House Limited | Households | 2003 |
| Westhead Medical Limited | Health & social care | 2013 |
| Westoaks Builders Limited | Construction | 2003 |
| Westoaks Builders South East Limited | Extraterritorial | 2021 |
| Westoaks Systems LLP | | 2013 |
| Westways Vending Limited | Manufacturing | 2002 |
| Weve Digital Limited | Professional & scientific | 2020 |
| Wgam Limited | Real estate | 2016 |
| WGC Trading Limited | Hospitality | 2015 |
| WH Castles Ltd | Real estate | 2019 |
| What AM I Wearing Limited | Manufacturing | 2026 |
| What Comes Next CIC | Health & social care | 2026 |
| What to DO? UK Ltd | Information & communication | 2017 |
| What's the Soul Truth Ltd | Information & communication | 2022 |
| Wheeler MAY Builds Ltd | Construction | 2025 |
| Where Dreams Come True Properties Ltd | Real estate | 2022 |
| Whippet Wines Ltd | Manufacturing | 2023 |
| White Building Consultancy Ltd | Professional & scientific | 2026 |
| White Gables (Eastbourne) Limited | Households | 1986 |
| White OWL Property and Aviation Ltd | Real estate | 2010 |
| White OWL Services Ltd | Administrative & support | 2022 |
| White Point Consulting Limited | Professional & scientific | 2022 |
| White Rabbit Photography Limited | Professional & scientific | 2015 |
| White Rock Construction Limited | Construction | 2022 |
| White's Bazaar Limited | Administrative & support | 1962 |
| Whitecakes Ltd | Wholesale & retail | 2025 |
| Whitegates Management Limited | Hospitality | 1987 |
| Whiteley Management Limited | Households | 2008 |
| Whiteline (Group) Ltd | Administrative & support | 2011 |
| Whiteline Aluminium Ltd | Manufacturing | 2010 |
| Whitethread Digital Ltd | Information & communication | 2025 |
| Whitewater Security Ltd | Administrative & support | 2025 |
| Whitewatergroupuk Limited | Water & waste | 2024 |
| Whiteways Aero Ltd | Professional & scientific | 2025 |
| Whyte Construction Limited | Construction | 2022 |
| Wicked Chicken UK Ltd | Hospitality | 2019 |
| Wickens Technical Consulting Ltd | Information & communication | 2015 |
| Wicks and Williams Holdings Ltd | Real estate | 2026 |
| Wiese Capital Management Limited | Real estate | 2025 |
| Wiif Ltd | Wholesale & retail | 2025 |
| Wild About Coffee Limited | Hospitality | 2016 |
| Wild Mercury Limited | Information & communication | 2026 |
| Wilde Dancing Limited | Arts & recreation | 2026 |
| Wildfire Vape A27 Limited | Wholesale & retail | 2024 |
| Wildfire Vape Crowborough Limited | Wholesale & retail | 2020 |
| Wildfire Vape Eastbourne Limited | Wholesale & retail | 2019 |
| Wildfire Vape Hailsham Limited | Wholesale & retail | 2025 |
| Wildfire Vape Hampden Park Limited | Wholesale & retail | 2021 |
| Wildfire Vape Limited | Wholesale & retail | 2018 |
| Wildfire Vape Newhaven Limited | Wholesale & retail | 2024 |
| Wildfire Vape Polegate Limited | Wholesale & retail | 2024 |
| Wildfire Vape Sevenoaks Limited | Wholesale & retail | 2024 |
| Wildfire Vape Shoreham Limited | Wholesale & retail | 2020 |
| Wildfire Vape Tunbridge Wells Limited | Wholesale & retail | 2024 |
| Wildly Crafted Ltd | Construction | 2021 |
| Wildwood Heritage CIC | Education | 2023 |
| Will Taylor Ltd | Information & communication | 2025 |
| William Fortescue Safaris Ltd | Administrative & support | 2025 |
| William Kingsmill Limited | Professional & scientific | 2011 |