| Westdock Limited | Hospitality | 2006 |
| Western House Freehold Limited | Households | 2018 |
| Westland Management Company Limited | Households | 1988 |
| Whatever Trevor Ltd | Arts & recreation | 2025 |
| Whisper Construction Limited | Real estate | 2003 |
| White Cliffs Engineering Limited | Administrative & support | 2022 |
| White Cliffs Radio | Information & communication | 2017 |
| White Engineering and Surveying Ltd | Construction | 2008 |
| White Horse Lettings Ltd | Real estate | 2015 |
| White Label Coffee Company Limited | Wholesale & retail | 2018 |
| Whole School Meals C.I.C. | Hospitality | 2006 |
| Wild Deer Therapy Ltd | Health & social care | 2024 |
| Wild Goose Food Limited | Hospitality | 2016 |
| Wild Path Arts CIC | Arts & recreation | 2025 |
| Wildflower Meadow (Hawkinge) Management Company Ltd | Real estate | 2023 |
| Wildside Discovery CIC | Education | 2026 |
| Will's Mobile Tyres Ltd | Wholesale & retail | 2023 |
| Wilson and Partners LLP | | 2007 |
| Wilson Building Consultants Ltd | Professional & scientific | 2019 |
| Wilson Management Limited | Real estate | 2024 |
| Wilson Real Estate Limited | Real estate | 2019 |
| Winders Limited | Professional & scientific | 2015 |
| Wine Consultants Group International Ltd | Wholesale & retail | 2022 |
| Wine Consultants Limited | Wholesale & retail | 2004 |
| Winham PM Limited | Construction | 2019 |
| Winham Property Management Ltd | Real estate | 2024 |
| Wolfe Comms Ltd | Information & communication | 2023 |
| Womb With a View Ltd | Health & social care | 2020 |
| Woodfall Film Productions Ltd | Information & communication | 2023 |
| Woods (Deal) Limited | Wholesale & retail | 2015 |
| Woods of Deal Limited | Construction | 2001 |
| Woodside Worth Consulting Limited | Professional & scientific | 2018 |
| Work Flirts Limited | Professional & scientific | 2008 |
| WP Mews Limited | Other services | 2017 |
| Wraithmaille Ltd | Manufacturing | 2025 |
| Wright Services Kent Ltd | Wholesale & retail | 2026 |
| Wsfsolutions Ltd | Information & communication | 2024 |
| WTC Kent Ltd | Construction | 2026 |
| XEN Cars Ltd | Wholesale & retail | 2008 |
| Xingfa Trading Ltd | Hospitality | 2024 |
| Yard MAN Ting Ltd | Hospitality | 2024 |
| Yeadon Consulting Limited | Administrative & support | 2011 |
| Yonic Productions Ltd | Information & communication | 2021 |
| Young@Hart Ltd | Health & social care | 2024 |
| Your World Holdings Limited | Administrative & support | 2022 |
| Zenthos Ltd. | Professional & scientific | 2017 |
| ZFB Limited | Professional & scientific | 2013 |
| Zilal Electric Ltd | Information & communication | 2020 |
| Zoho Business AI Ltd | Information & communication | 2025 |
| Zoin Solutions Ltd | Wholesale & retail | 2024 |