| White Horse Education Ltd | Education | 2025 |
| White Paper PEN Limited | Professional & scientific | 2019 |
| White's Northern Limited | Transport & logistics | 2002 |
| Whitefish Marketing Ltd | Professional & scientific | 2007 |
| Whitewoods Construction Ltd | Construction | 2025 |
| Whitfield Care Home Holdings Limited | Other services | 2017 |
| Whitfield Care Home Limited | Health & social care | 2016 |
| Whitfield Service Station Holdings Limited | Other services | 2017 |
| Whole Path Balance and Bloom CIC | Education | 2026 |
| WHY NOT FIX Ltd | Other services | 2013 |
| WHY OH WYE Limited | Financial services | 2016 |
| Wikigolf Ltd. | Information & communication | 2020 |
| Wild for Flowers Ltd | Wholesale & retail | 2014 |
| Wild Score Ltd | Information & communication | 2026 |
| Wild UP. Slow Down. Ltd | Hospitality | 2023 |
| Wildbear Motorhomes & Restorations Ltd | Manufacturing | 2018 |
| Wildflower Restoration Limited | Other services | 2024 |
| Wiley Coastal Homes Ltd | Real estate | 2025 |
| Will Shakes and Company Ltd | Administrative & support | 2020 |
| William Aaron Ltd | Professional & scientific | 2025 |
| Williams Computers & Electrical Limited | Information & communication | 2014 |
| Willow Enterprises S.E. Ltd | Real estate | 2005 |
| Wills Garage Folkestone Limited | Wholesale & retail | 2015 |
| Wilson Traffic Consultants Ltd | Professional & scientific | 2024 |
| Wise AV Limited | Construction | 2019 |
| Wisewire Ltd | Information & communication | 2025 |
| With Lavender Marketing Solutions Ltd | Professional & scientific | 2025 |
| Wizenet Ltd | Professional & scientific | 2024 |
| Wolf Wear Ltd | Wholesale & retail | 2023 |
| Wonder Warriors C.I.C. | Health & social care | 2021 |
| Wood Finishes Direct Limited | Wholesale & retail | 2005 |
| Woodend Residents Management Company Limited | Households | 2007 |
| Woodlands & Wildthings CIC | Health & social care | 2025 |
| WOP Consult Ltd | Other services | 2024 |
| Word IT Corporate Communications Ltd | Extraterritorial | 2020 |
| Work Without Walls LLP | | 2010 |
| Workcodes Limited | Professional & scientific | 2020 |
| Workerbee Recruitment Ltd | Administrative & support | 2016 |
| Workspot Ltd | Real estate | 2020 |
| Worktel Limited | Construction | 2009 |
| World Fashion Club Limited | Wholesale & retail | 2024 |
| World News - Climate Change the New Economy Ltd | Information & communication | 2009 |
| WP Agency Support Limited | Information & communication | 2022 |
| Wrightweld Fabrications Ltd. | Manufacturing | 2011 |
| Writefully Yours Limited | Arts & recreation | 2019 |
| Writing Matters Publishing Ltd | Wholesale & retail | 2024 |
| WRP Harmony Holdings Ltd | Financial services | 2026 |
| Wv.Printing & Binding Consulting Limited | Manufacturing | 2001 |
| Wycliffe Folkeston Limited | Hospitality | 2024 |
| X Bladez Limited | Wholesale & retail | 2018 |
| Xambre Limited | Real estate | 2018 |
| Xero AV Ltd | Wholesale & retail | 2020 |
| XIX Storage Ltd | Transport & logistics | 2024 |
| XIX Transport Ltd | Transport & logistics | 2024 |
| Xurel Limited | Wholesale & retail | 2024 |
| Yango Limited | Information & communication | 2019 |
| Ydcreations Ltd | Manufacturing | 2019 |
| Yellow Duck Signs & Design Limited | Professional & scientific | 2015 |
| Yeti Security Services Ltd | Administrative & support | 2006 |
| Yewande 103 Limited | Health & social care | 2020 |
| Ykkanimaje Ltd | Real estate | 2025 |
| Yoke Yoga Ltd | Hospitality | 2023 |
| York Mews (Folkestone) Right to Manage Company Limited | Real estate | 2024 |
| Youcall-It.Com Ltd | Information & communication | 2010 |
| Youme Business Services Limited | Information & communication | 2013 |
| Youme Creative Ltd | Wholesale & retail | 2021 |
| Youme Property Holdings Ltd | Financial services | 2022 |
| Young Animators Club CIC | Education | 2017 |
| Young's Accountancy Services Limited | Professional & scientific | 2019 |
| Your Style Design Limited | Manufacturing | 2015 |
| Yudum UK Limited | Wholesale & retail | 2024 |
| Yuvali Limited | Hospitality | 2026 |
| Zain Creative Ltd | Professional & scientific | 2022 |
| Zak’S Cleaning Services Ltd | Administrative & support | 2025 |
| Zara's Lettings Limited | Real estate | 2025 |
| Zenita Limited | Real estate | 2024 |
| Zero FOX Group Ltd | Information & communication | 2025 |
| Zero Hate Just Love CIC | Arts & recreation | 2025 |
| Zeroparts Ltd | Wholesale & retail | 2022 |
| Zestco Ltd | Information & communication | 2025 |
| Zesteas Ltd | Hospitality | 2014 |
| Zeus Accountants Ltd | Professional & scientific | 2024 |
| Zeus Capital Group Ltd | Financial services | 2024 |
| Zeus FM Limited | Information & communication | 2022 |
| Zilalah Ltd | Wholesale & retail | 2024 |
| Zintouch UK Limited | Wholesale & retail | 2022 |
| ZIP Services Limited | Transport & logistics | 2018 |
| ZK Catering Ltd | Hospitality | 2025 |
| ZK Kent Delivery Ltd | Hospitality | 2026 |
| Zone Group Limited | Construction | 2024 |
| Zouuk Ltd | Information & communication | 2015 |
| Zulevan Limited | Transport & logistics | 2026 |
| Zyboscript Limited | Professional & scientific | 2019 |