| Waterwise Limited | Real estate | 1996 |
| Watford Homes Limited | Real estate | 2013 |
| Watkinson Motors Limited | Manufacturing | 2018 |
| Watney College Limited | Education | 2020 |
| Wattgo Ltd | Wholesale & retail | 2020 |
| Watts Property Developments Ltd | Real estate | 2025 |
| Wavey Ltd | Manufacturing | 2025 |
| Way of Holiness Chapel Limited | Extraterritorial | 2018 |
| WCP Group Ltd | Financial services | 2019 |
| WD Scaffolding Limited | Construction | 2014 |
| WDB Andall Limited | Professional & scientific | 2011 |
| Wdjps Ltd | Information & communication | 2025 |
| WE ARE Whippet Limited | Professional & scientific | 2024 |
| WE Create Dimensions Ltd | Information & communication | 2025 |
| WE DO Graphics and Installs Ltd | Manufacturing | 2019 |
| WE DO Graphics Ltd | Manufacturing | 2025 |
| WE FIX Roofing & Building Solutions Ltd | Construction | 2025 |
| WE FIX Windows South East Limited | Construction | 2025 |
| WE Screed Ltd | Administrative & support | 2020 |
| Wealden Agricultural Marketing Limited | Construction | 2003 |
| Wealden Projects (South East) Ltd | Construction | 2018 |
| Wealth and Property Finance Ltd | Financial services | 2020 |
| Wealth Martins Cleaning Services Ltd | Other services | 2024 |
| Wealth Optimisation Limited | Professional & scientific | 2017 |
| Wealthy Honey Investments UK Limited | Construction | 2023 |
| Webb Air Conditioning Services Ltd | Energy | 2020 |
| Webb Developments Limited | Real estate | 2023 |
| Webb-Flint Building & Maintenance Ltd | Manufacturing | 2021 |
| Webbs Flooring Ltd | Construction | 2018 |
| Webex Limited | Wholesale & retail | 2010 |
| Weblee Limited | Wholesale & retail | 2018 |
| Wecare Investment Ltd | Health & social care | 2021 |
| Wedel Ltd | Transport & logistics | 2017 |
| Wedgewood (New Homes) Limited | Construction | 2005 |
| Wedgewood (Sevenoaks) Ltd | Construction | 2016 |
| Wedgewood Homes Ltd | Construction | 2008 |
| Wedgewood Homes (Biddenden) Ltd | Construction | 2021 |
| Wedgewood Homes (Birchington) Limited | Construction | 2014 |
| Wedgewood Homes (Boughton) Limited | Construction | 2015 |
| Wedgewood Homes (Headcorn) Ltd | Construction | 2018 |
| Wedgewood Homes (Hythe) Ltd | Construction | 2019 |
| Wedgewood Homes (Kent) Ltd | Construction | 2021 |
| Wedgewood Homes (Mill Drive) Ltd | Construction | 2021 |
| Wedgewood Homes (Moatenden) Ltd | Construction | 2021 |
| Wedgewood Homes (Shadoxhurst) Limited | Construction | 2017 |
| Wedgewood Homes (ST Peters) Ltd | Construction | 2020 |
| Wedgewood Homes (Staplehurst) Ltd | Construction | 2020 |
| Wedgewood Homes (Whitstable) Ltd | Construction | 2014 |
| Wedgewood Investments Ltd | Construction | 2015 |
| Wedgewood Land & Investments Ltd | Construction | 2019 |
| Weekes Brothers (Welling) Limited | Real estate | 1947 |
| Wefit Air Conditioning Limited | Construction | 2025 |
| Weirgate Management Ltd | Other services | 2014 |
| Welding School Ltd | Education | 2021 |
| Well Woman Eclinic Partnership Ltd | Health & social care | 2025 |
| Wellard Plant Limited | Construction | 2012 |
| Wellbeing Link Limited | Other services | 2014 |
| Welldata Ltd | Information & communication | 1999 |
| Wellevate Ltd | Health & social care | 2023 |
| Wels World Limited | Arts & recreation | 2016 |
| Wendycare Limited | Health & social care | 2025 |
| Wenepali.Com Ltd | Information & communication | 2014 |
| Wentworth Primary School | Education | 2012 |
| Wepply Limited | Wholesale & retail | 2025 |
| West Malling Coachworks Ltd | Wholesale & retail | 2025 |
| West England Company Ltd | Real estate | 2025 |
| West Hill Life Limited | Education | 2012 |
| West Incorporated Limited | Administrative & support | 2010 |
| West Raynham Developments Limited | Real estate | 2006 |
| Westawin Limited | Professional & scientific | 2024 |
| Westbourne Apartments (Beckenham) Limited | Real estate | 2005 |
| Westcoast Consult Limited | Professional & scientific | 2013 |
| Westgate Technology Solutions (UK) Limited | Information & communication | 2007 |
| Westgatehouse Property Limited | Real estate | 2014 |
| Westmere Facilities Ltd | Construction | 2026 |
| Westmeria Recruitment Limited | Administrative & support | 2002 |
| Westminster and City Programmes Limited | Other services | 1986 |
| Westminster Compliance LLP | | 2008 |
| Westminster Trust Co. Ltd | Professional & scientific | 2024 |
| Weston London Property Ltd | Real estate | 2018 |
| WFA Limited | Information & communication | 2009 |
| Wgpp & Co Ltd | Professional & scientific | 2018 |
| What Good Leadership Looks Like Ltd | Professional & scientific | 2013 |
| What IF..? (Community) Ltd. | Arts & recreation | 2004 |
| Wheatley Leisure Limited | | 1976 |
| Wheelaroundtheworld Ltd | Information & communication | 2024 |
| Whek Limited | Real estate | 2023 |
| White and Red Scaffolding Ltd | Construction | 2017 |
| White Box Decorators Ltd | Construction | 2013 |
| White Box Developments Ltd | Real estate | 2017 |
| White Duff Homes Limited | Real estate | 2025 |
| White Feather Holdings Limited | Financial services | 2024 |
| White Feather Properties (1963) Limited | Real estate | 2024 |
| White FOX Inc Limited | Manufacturing | 2023 |
| White Kylin Ltd | Education | 2019 |
| White Vase Properties Ltd | Real estate | 2020 |
| Whitecross JS Limited | Construction | 2009 |
| Whitefields Solutions Ltd | Information & communication | 2015 |
| Whitefire Ltd | Construction | 2025 |
| Whitestone Property and Estates Limited | Real estate | 2020 |