| Water and Wood Atelier Limited | Wholesale & retail | 2026 |
| Waterstand Limited | Households | 2000 |
| Wayne Maddox Marine Limited | Extraterritorial | 2020 |
| WCS Productions Ltd | Information & communication | 2017 |
| WE DO ANY Garden.Com Limited | Administrative & support | 2019 |
| Wecanmake Ltd | Professional & scientific | 2013 |
| Weekend Journals Ltd | Information & communication | 2016 |
| Wellesley Haddon Dene School Limited | Education | 2015 |
| West View House Consulting Limited | Professional & scientific | 2022 |
| Westbeach Events Limited | Administrative & support | 2013 |
| Westcliff Court (Broadstairs) Limited | Households | 1985 |
| Westerham Print Ltd | Manufacturing | 2015 |
| Western INK Limited | Professional & scientific | 2008 |
| Westgate Sourdough Ltd | Wholesale & retail | 2021 |
| Westland Environmental (Contracts) Limited | Extraterritorial | 2023 |
| Westline Capital Holdings Ltd | Real estate | 2025 |
| Westline Holdings LLP | | 2019 |
| Westwood Cross Limited | Real estate | 2010 |
| Westwood Cross Motors Limited | Wholesale & retail | 2010 |
| Westwood Scaffolding Ltd | Construction | 2014 |
| Westwood Self-Storage Limited | Real estate | 2021 |
| Westwood Village 2 Ltd | Construction | 2020 |
| Whac Properties Limited | Real estate | 2017 |
| WHD Mini Stays Limited | Education | 2021 |
| Wheatley Enterprise (Sussex) Ltd | Hospitality | 2025 |
| Whitecliffe Ltd | Real estate | 2018 |
| Whitstable Bay Limited | Wholesale & retail | 2013 |
| Whitstone Developments Limited | Construction | 2016 |
| Whitstone Properties (Kent) Limited | Real estate | 2020 |
| Whizzy Web Solutions Limited | Information & communication | 2017 |
| Wilkes Holdings Limited Liability Partnership | | 2016 |
| Wilkes Ltd | Health & social care | 2010 |
| Wilkie's Services Limited | Construction | 2020 |
| William Sear Limited | Administrative & support | 2017 |
| Willow Court Flats(Broadstairs) Limited | Households | 1963 |
| Willow Flame Productions Limited | Information & communication | 2025 |
| Wilrose Property Management Limited | Real estate | 2025 |
| Wilverley Furniture Limited | Manufacturing | 2008 |
| Winchester Aesthetic Clinic Limited | Health & social care | 2023 |
| Winscombe Court Limited | Households | 2021 |
| Winward Events Ltd | Arts & recreation | 2026 |
| WMM Ramsgate Ltd | Manufacturing | 2017 |
| Wolf Flanagan Legal Limited | Professional & scientific | 2025 |
| Woodside & Sutton Courts Limited | Real estate | 2023 |
| Work & Process Ltd | Professional & scientific | 2025 |
| Yardley and Villiers Freehold Limited | Households | 2008 |
| Yarrow Hotel Limited | Hospitality | 2021 |
| Yellow Chair Partners Limited | Real estate | 2025 |
| YES LAD Limited | Administrative & support | 2021 |
| Yilsy Ltd | Construction | 2024 |
| YM Transit Ltd | Transport & logistics | 2025 |
| Younger + Turner Collective Limited | Professional & scientific | 2025 |
| Zaahraa Limited | Wholesale & retail | 2026 |
| Zain Barbers Ltd | Other services | 2022 |
| ZEN Managed Services Ltd | Information & communication | 2014 |
| Zenoda Limited | Administrative & support | 2016 |
| ZRS Holdings Ltd | Financial services | 2019 |
| À LA Mode Games Limited | Information & communication | 2022 |