| Wailiwaliwa Limited | Other services | 2015 |
| WAM Design Limited | Professional & scientific | 2004 |
| Ward Homes Construction Limited | Construction | 2020 |
| Warren Commercial Fencing Limited | Construction | 2005 |
| Warrior Court Management Limited | Households | 2004 |
| Wasser DEK Limited | Extraterritorial | 2015 |
| Waterborne Management Services Limited | Administrative & support | 2019 |
| Waterside Boat Sales Limited | Wholesale & retail | 2015 |
| Waterside Marine Sales Limited | Wholesale & retail | 2020 |
| Watts on Installations Ltd | Construction | 2026 |
| Wayne Molloy Carpentry Ltd | Construction | 2009 |
| WBR Property Hampshire Ltd | Hospitality | 2024 |
| WE Burns IT Ltd | Other services | 2026 |
| Weber Marine Services Ltd | Professional & scientific | 2024 |
| Weevil Management Limited | Real estate | 2010 |
| Weird Bean Design Ltd | Information & communication | 2007 |
| Weirdbean Digital Media Ltd | Information & communication | 2015 |
| Welfine Estates Limited | Real estate | 1999 |
| Wellbeing Information Systems Ltd. | Information & communication | 2002 |
| Wessex Innovate Ltd | Information & communication | 2026 |
| Wessex Partnerships Limited | Professional & scientific | 2000 |
| Westacott Services Ltd | Manufacturing | 2023 |
| Westgarth Construction Limited | Construction | 2021 |
| Wheeler & Oliver Limited | Manufacturing | 2009 |
| White & Brooks Limited | Real estate | 2019 |
| White and Brooks Abbey Limited | Real estate | 2021 |
| White and Brooks Land Limited | Real estate | 2022 |
| White Horse Bar and Kitchen LLP | | 2023 |
| Whitehead Property Holdings Ltd | Real estate | 2025 |
| Whitfield Technologies Ltd | Information & communication | 2026 |
| Who's GOT the BAG Limited | Manufacturing | 2022 |
| Wickham Festivals Limited | Arts & recreation | 2007 |
| Wickham Micro Limited | Professional & scientific | 2021 |
| Widley FS Ltd | Hospitality | 2021 |
| Wight Property Company Ltd | Real estate | 2021 |
| Wilcot Property Limited | Real estate | 2021 |
| Wilks Engineering Limited | Construction | 2018 |
| William Mills (Marine) Ltd | Extraterritorial | 2000 |
| Willow Group Partnership LP | | 2018 |
| Wilpow Solutions Ltd | Other services | 2025 |
| Wilson Mullins Limited | Professional & scientific | 2022 |
| WIN Retail Limited | Wholesale & retail | 2017 |
| Wing's Technical Services Limited | Other services | 1998 |
| Wings Community Support C.I.C. | Wholesale & retail | 2024 |
| Winlaz Property Limited | Real estate | 2019 |
| Winpat Ltd | Health & social care | 2015 |
| Winpat Property Ltd | Real estate | 2020 |
| Winter & Hunt Ltd | Information & communication | 2025 |
| Wireworks Electrical Services Ltd | Construction | 2026 |
| Wises Court Management Company Limited | Households | 1995 |
| WJ Building & Decorating Services Ltd | Construction | 2026 |
| WJS Home Improvements Ltd | Construction | 2022 |
| WKB Ventures Ltd | Real estate | 2026 |
| WNJ Property Ltd | Real estate | 2025 |
| Woks Hot Limited | Wholesale & retail | 2024 |
| Wood, Hicks & Co Ltd | Professional & scientific | 2000 |
| Woodcroft Construction Ltd | Construction | 2003 |
| Wooden Shutters Direct Limited | Wholesale & retail | 2015 |
| Woodlake Park Storage Limited | Real estate | 2019 |
| Woodlands Camping Ltd | Administrative & support | 2025 |
| Woods Haulage Ltd | Transport & logistics | 2024 |
| Woodwards Limited | Wholesale & retail | 2007 |
| Woodwards MOT Centre Limited | Wholesale & retail | 2011 |
| Woodwards Motor Sales Limited | Wholesale & retail | 2016 |
| Workexpsr Ltd | Information & communication | 2025 |
| Working at Height Solutions Limited | Manufacturing | 2011 |
| World Communications (2002) Limited | Wholesale & retail | 2002 |
| World Entertainment Limited | Arts & recreation | 2019 |
| Wrapson Properties Ltd | Real estate | 2026 |
| Wright Inside Design Ltd | Professional & scientific | 2011 |
| WS Property Solutions Limited | Real estate | 2018 |
| Wych Lane Ltd | Wholesale & retail | 2019 |
| Wyrdrisk Ltd | Professional & scientific | 2025 |
| Xterior Cleaning Solutions Ltd | Administrative & support | 2025 |
| Xtreme Courier Solutions Ltd | Transport & logistics | 2022 |
| Xtremes Management Limited | Professional & scientific | 2016 |
| XW Rigging Limited | Manufacturing | 2013 |
| Yacht Care Plus Ltd | Manufacturing | 2006 |
| Yamandemir Limited | Other services | 2022 |
| Yellow Duck Hot TUB Hire Ltd. | Administrative & support | 2016 |
| Yellow Square Limited | Other services | 2019 |
| Young & Marrufo Homes Ltd | Real estate | 2021 |
| Your Accounts Department Ltd | Extraterritorial | 2017 |
| Your Brand Design Limited | Professional & scientific | 2006 |
| Your Local Baker Ltd | Hospitality | 2026 |
| Your Send Solutions Ltd | Professional & scientific | 2024 |
| ZANA12 Ltd | Real estate | 2026 |
| Zaza Bingol Ltd | Other services | 2016 |
| ZEE3HREE Barbecue Co. Ltd | Wholesale & retail | 2024 |
| ZJ Property Maintenance Ltd | Construction | 2024 |