| Watkins Transport Ltd | Transport & logistics | 2014 |
| Watts in the Garden Ltd | Other services | 2010 |
| Watts the Score Ltd | Arts & recreation | 2019 |
| Wawa Llama Ltd | Professional & scientific | 2017 |
| Weald Business Park Limited | Real estate | 2004 |
| Wearegoodgiving Ltd | Administrative & support | 2021 |
| Weddings at Graham Greener Ltd | Other services | 2019 |
| Welding & Fabrications Ltd | Manufacturing | 2019 |
| Wellington House (ME14) RTM Company Limited | Households | 2024 |
| Wellness Studio Kent Ltd | Other services | 2026 |
| West Innes Partnership LLP | | 2006 |
| West Media Production Ltd | Professional & scientific | 2024 |
| West Midland Holdings Ltd | Administrative & support | 2017 |
| Westbridge Media Ltd | Professional & scientific | 2026 |
| WET Rooms Kent Ltd | Construction | 2024 |
| What IT IS Ltd | Arts & recreation | 2021 |
| What Ltd | Wholesale & retail | 2021 |
| Wheelers Oyster Bar Whitstable Ltd | Hospitality | 2019 |
| White Daisies Ltd | Other services | 2021 |
| Whitestable Food Ltd | Wholesale & retail | 2026 |
| Whitlit Ltd | Arts & recreation | 2024 |
| Whitsable Morson Ltd | Construction | 2023 |
| Whitstable Bay Vets Ltd | Professional & scientific | 2018 |
| Whitstable Beauty Group Ltd | Education | 2021 |
| Whitstable Castle and Gardens Limited | Hospitality | 2025 |
| Whitstable Construction (Kent) Limited | Administrative & support | 2025 |
| Whitstable Exchange Management Limited | Other services | 2002 |
| Whitstable Film & TV Ltd | Arts & recreation | 2013 |
| Whitstable Heating Limited | Construction | 2008 |
| Whitstable House Clearance Ltd | Wholesale & retail | 2022 |
| Whitstable Ltd | Professional & scientific | 2025 |
| Whitstable Maritime | Arts & recreation | 2014 |
| Whitstable MAY House Ltd | Real estate | 2024 |
| Whitstable MOT Centre Ltd | Wholesale & retail | 2012 |
| Whitstable Nutrition Centre Ltd | Wholesale & retail | 2024 |
| Whitstable Oyster Company Limited | Hospitality | 2005 |
| Whitstable Oyster Fishery Company (the) | Real estate | 1981 |
| Whitstable Print Ltd | Manufacturing | 2025 |
| Whitstable Property Company Ltd | Real estate | 2025 |
| Whitstable Property Investments Limited | Real estate | 2002 |
| Whitstable Property Services Ltd | Professional & scientific | 2025 |
| Whitstable Restaurant Company Ltd | Hospitality | 2020 |
| Whitstable Seaside Limited | Hospitality | 2012 |
| Whitstable Solar Ltd | Construction | 2023 |
| Whitstable Taxis Limited | Transport & logistics | 1979 |
| Whitstable Town Football Club Limited | Arts & recreation | 2019 |
| Whitstable Umbrella Community Support Centre | Health & social care | 2001 |
| Whitstabubbles Ltd | Wholesale & retail | 2021 |
| Whitten Pet Care Limited | Professional & scientific | 2024 |
| Whitzy Media Ltd | Arts & recreation | 2021 |
| Whuman Limited | Professional & scientific | 2019 |
| Wick & Womb Limited | Manufacturing | 2025 |
| Wilcox Building Services Ltd | Construction | 2023 |
| Wild Geese Leadership Limited | Professional & scientific | 2014 |
| William Glanvill Ltd | Construction | 2026 |
| Willowbank Court (RBC) RTM Company Limited | Households | 2024 |
| Wilson's Holdings Limited | Financial services | 2020 |
| Wilson's Maintenance Ltd | Construction | 2025 |
| Wilson's Renewables Ltd | Construction | 2021 |
| Wincheap Holdings Limited | Professional & scientific | 1998 |
| Windy Corner Café & Stores Ltd | Hospitality | 2025 |
| Winterstoke Management Ltd | Real estate | 2015 |
| Wonderbag UK Limited | Wholesale & retail | 2018 |
| Wood and Whistles Ltd | Manufacturing | 2022 |
| Wood Roofing Limited | Construction | 2003 |
| Wood Wharf International Investments Limited | Information & communication | 2023 |
| Woodchurch Windmills & FUN Club | Education | 2010 |
| Woodfield Systems Limited | Manufacturing | 2024 |
| Woodfield Systems United Limited | Manufacturing | 2024 |
| Woodfire Kitchen Whitstable Ltd | Hospitality | 2024 |
| Woodloch Ltd | Education | 2025 |
| Woodward & Bishopp Ltd | Real estate | 2022 |
| Woodward Construction Solutions Ltd | Construction | 2025 |
| Woollard and Kent Funeral Services Limited | Other services | 2010 |
| Work Behaviour Limited | Professional & scientific | 2015 |
| Working Smarter Ltd | Professional & scientific | 2017 |
| Workplace Consultant Limited | Professional & scientific | 2010 |
| Wrapped Girl Limited | Professional & scientific | 2023 |
| WS Taxi Rentals Limited | Transport & logistics | 2023 |
| Wwcp Limited | Information & communication | 2002 |
| Wyvern Ltd | Extraterritorial | 2015 |
| Xquisite Fashion Ltd | Wholesale & retail | 2019 |
| Yani Creative Ltd | Professional & scientific | 2026 |
| Yasp Holdings Ltd | Real estate | 2016 |
| Yellow HAT Projects Ltd | Professional & scientific | 2024 |
| Yemane Ltd | Real estate | 2020 |
| YOU Beauty Photo Booths Limited | Professional & scientific | 2025 |
| You&Co Hairdressing Limited | Other services | 2018 |
| Your Books and Balances Limited | Professional & scientific | 2017 |
| Your Home Renovation Ltd | Construction | 2023 |
| Yowala Limited | Education | 2018 |
| Zedmed-Uk Ltd | Wholesale & retail | 2023 |
| ZEN Perspective Ltd | Real estate | 2014 |
| Zest Homes Sales & Lettings Ltd | Real estate | 2020 |
| Zweena Properties Limited | Real estate | 2013 |
| Zyppon Limited | Real estate | 1978 |