| Wesley Homes Properties (Saxton Street) Limited | Administrative & support | 2012 |
| West Brothers Holdings Ltd | Real estate | 2024 |
| West Brothers Transport Limited | Transport & logistics | 2015 |
| West Central Holdings Limited | Administrative & support | 1946 |
| West Dental Group Limited | Financial services | 2026 |
| West Green Dental Care Limited | Health & social care | 2024 |
| West Hill Road Limited | Construction | 2025 |
| West London Aggregates Limited | Extraterritorial | 2002 |
| West One Europe Limited | Manufacturing | 2006 |
| West One Holdings Limited | Professional & scientific | 2006 |
| West Ridge Management Ltd | Professional & scientific | 2026 |
| West-O Direct Wholesale Ltd | Wholesale & retail | 2023 |
| West-O International Group of Companies Ltd | Financial services | 2018 |
| West-O Select Retail Limited | Wholesale & retail | 2025 |
| Westbere Cars Ltd | Wholesale & retail | 2024 |
| Westgaard Holdings Ltd | Financial services | 2026 |
| Westgaard Property Ltd | Real estate | 2026 |
| Westgate Catering Limited | Wholesale & retail | 2020 |
| Westgate Community Trust (Canterbury) Ltd | Other services | 2011 |
| Westgate One Ltd | Construction | 2023 |
| Westhartley Limited | Real estate | 2017 |
| Westover Strategy Partners Limited | Professional & scientific | 2025 |
| Westside Apartments (Canterbury) Management Limited | Real estate | 1999 |
| Westway Homes Construction Ltd | Construction | 2023 |
| Westway Homes Ltd | Construction | 2020 |
| Wetility Global Limited | Energy | 2024 |
| Wham Golf Ltd | Wholesale & retail | 2020 |
| What for Creative Limited | Arts & recreation | 2017 |
| Whatsup? Tech Ltd | Information & communication | 2015 |
| Wheelie Fresh & Clean BIN Services Limited | Administrative & support | 2025 |
| Whelan Larke RHR Limited | Administrative & support | 2022 |
| Whichford Enterprises Ltd | Hospitality | 2013 |
| White Anvil Limited | Information & communication | 2015 |
| White Gecko Ltd | Real estate | 2022 |
| White Gecko Property LLP | | 2023 |
| White Lodge New Property Limited | Construction | 2025 |
| White Oak Advisors LLP | | 2009 |
| White Oak Ventures Limited | Financial services | 2009 |
| Whiteacre Homes Holdings Limited | Financial services | 2021 |
| Whiteacre Homes Limited | Construction | 2006 |
| Whitechappell Plumbing and Heating Limited | Construction | 2014 |
| Whitechappell Property Maintenance Limited | Other services | 2011 |
| Whitecliff Dover Limited | Real estate | 2001 |
| Whitefriars Homes Limited | Real estate | 2026 |
| Whites Bookkeeping & Accountancy Ltd | Professional & scientific | 2017 |
| Whites of Kent Limited | Construction | 2026 |
| Whitmore Food Group Ltd | Manufacturing | 2026 |
| Whitprint Ltd | Manufacturing | 2023 |
| Whitstable and Canterbury Plumbing and Heating Limited | Construction | 2025 |
| Whitstable Metals Limited | Water & waste | 2006 |
| Whitstable Road Management Company Limited | Households | 2006 |
| Whitten Spencer Limited | Professional & scientific | 2010 |
| WHO Media Ltd | Professional & scientific | 2020 |
| Wholly Grape Limited | Wholesale & retail | 2013 |
| Whosoff Limited | Information & communication | 2014 |
| Whytecliffe Group Limited | Administrative & support | 2020 |
| Whytecliffe Holdings Limited | Administrative & support | 2020 |
| Whytecliffe Limited | Administrative & support | 2002 |
| Wicker Consulting Limited | Professional & scientific | 2014 |
| Wicketts END Management Company Limited | Households | 2007 |
| Wicklow Pavilion Limited | Real estate | 2022 |
| Wicks Retirement Limited | Professional & scientific | 2013 |
| Wico Barriers Limited | Manufacturing | 2017 |
| Wiesloch Limited | Administrative & support | 2016 |
| Wilcareandsons Ltd | Administrative & support | 2023 |
| Wild & Sage Ltd | Manufacturing | 2024 |
| Wild Iris Productions UK Limited | Information & communication | 1999 |
| Wild Within C.I.C. | Health & social care | 2025 |
| Wilder Pathways Ltd | Education | 2026 |
| Wilding Eatery Limited | Hospitality | 2022 |
| Wildon Consultancy Ltd | Wholesale & retail | 2018 |
| Wildon Property Solutions Ltd | Real estate | 2016 |
| William Dunn Consulting Limited | Wholesale & retail | 2014 |
| William Street Management Company Limited | Households | 2013 |
| Willoughby Compliance Limited | Professional & scientific | 2024 |
| Willoughby Digital Limited | Information & communication | 2025 |
| Willoughby Group Limited | Financial services | 2024 |
| Willow Bond Ltd | Real estate | 2023 |
| Willow by the River Limited | Health & social care | 2024 |
| Willow Contractors Limited | Professional & scientific | 2026 |
| Willow Personal Management Ltd. | Administrative & support | 1994 |
| Willow Property Development Limited | Construction | 2003 |
| Willow Property Rentals Limited | Real estate | 2009 |
| Willowstone Holdings Limited | Financial services | 2026 |
| Wincheap Millers Freehold Limited | Households | 2017 |
| Winchester Physio and Health Limited | Health & social care | 2023 |
| Windscreen Assist Ltd | Administrative & support | 2013 |
| Wine Tours of Kent Limited | Administrative & support | 2021 |
| Winemaker Consultant UK Ltd | Professional & scientific | 2024 |
| Wing Hong Chinese Medical Centre Limited | Health & social care | 2002 |
| Wing NUT Wines Ltd | Wholesale & retail | 2021 |
| Wingham Central Stores Limited | Wholesale & retail | 2007 |
| Winterbourne Minerals Limited | Mining & quarrying | 2007 |
| Winters Barns Ltd | Extraterritorial | 2024 |
| Winyard Holdings Limited | Other services | 2025 |
| Wise Move MK11 Ltd | Transport & logistics | 2025 |
| Witcraft Productions Ltd | Information & communication | 2024 |
| With Public Relations Ltd | Professional & scientific | 2010 |
| With Public Relations Trustees Ltd | Administrative & support | 2023 |
| Withflare Ltd | Information & communication | 2022 |