| Watkins Digital Ltd | Professional & scientific | 2019 |
| Waylight Growth Ltd | Education | 2025 |
| WE ARE the Red Team Ltd | Administrative & support | 2024 |
| WE FIX Your Boiler Ltd | Construction | 2025 |
| Webb Flooring Ltd | Construction | 2025 |
| Webb Property Partnership Limited | Construction | 2010 |
| Well Ordered Living Ltd | Professional & scientific | 2026 |
| Wesson Marketing Limited | Professional & scientific | 2009 |
| Wesson Music Ltd | Information & communication | 2019 |
| West Court Consultants Limited | Information & communication | 2011 |
| West One Integrated Ltd | Construction | 2019 |
| Western Eagle Finance Limited | Financial services | 2021 |
| Westley SE Limited | Administrative & support | 2013 |
| Westleyhire Limited | Administrative & support | 2013 |
| WH Properties Group Ltd | Real estate | 2019 |
| WH Renewables Ltd | Energy | 2022 |
| What a Lovely Bunch Ltd | Wholesale & retail | 2023 |
| White Box Design Ltd | Professional & scientific | 2026 |
| Whitechapel Limited | Information & communication | 2013 |
| Whitelegg Limited | Manufacturing | 2017 |
| Whitelegg Machines Limited | Manufacturing | 1966 |
| Whiterail Developments Ltd | Construction | 2021 |
| Whitstable Builders Ltd | Construction | 2006 |
| Whitstable Groundworks & Plant Hire Ltd | Construction | 2022 |
| Whitstable Woodworking Limited | Construction | 2010 |
| Wightmans Used Car Centre Ltd | Wholesale & retail | 2016 |
| Wilan Investments Limited | Real estate | 1963 |
| Wildwood Centre Limited | Arts & recreation | 1988 |
| Wildwood Escot Ltd | Arts & recreation | 2014 |
| Wildwood Retail Limited | Wholesale & retail | 2022 |
| Wildwood Trust | Arts & recreation | 2002 |
| Willett Electrical Ltd | Construction | 2013 |
| William Thorpe Limited | Wholesale & retail | 2025 |
| WIN Competition Ltd | Information & communication | 2026 |
| Winversy Ltd | Arts & recreation | 2025 |
| With YOU Property Services Ltd | Construction | 2022 |
| Without Exceptions Ltd | Other services | 2014 |
| Wondee Ltd | Other services | 2026 |
| Woodmans Virtual Golf Ltd | Arts & recreation | 2021 |
| Woodrose Ltd | Financial services | 2022 |
| Woods & Sons Kent Ltd | Construction | 2021 |
| Woodsy Garden Buildings Ltd | Construction | 2018 |
| Workplace Assessments Ltd | Education | 2019 |
| WSG Autos Limited | Wholesale & retail | 2014 |
| WVH Developments Limited | Information & communication | 2025 |
| Xargo Limited | Transport & logistics | 2023 |
| Xevandor Ltd | Wholesale & retail | 2026 |
| Xrd-Consulting Limited | Professional & scientific | 2024 |
| Yachting Heritage Limited | Transport & logistics | 2013 |
| Yagden Ltd | Hospitality | 2014 |
| Yaho Catering Ltd | Hospitality | 2024 |
| Your First AID Limited | Education | 2021 |
| Zeno Partners Ltd | Information & communication | 2025 |
| Zindex Limited | Information & communication | 2015 |
| Zurich Energy Limited | Mining & quarrying | 1985 |
| Zyber Global Ltd | Information & communication | 2013 |