| Wilson and Walters Ltd | Education | 2019 |
| Wilson Manufacturing Limited | Manufacturing | 2011 |
| Wilton House Freehold (Bournemouth) Limited | Households | 2019 |
| Wimborne Road Residents Association Limited | Households | 2001 |
| Windham Ltd | Real estate | 2026 |
| Window Elegance Southern Ltd | Manufacturing | 2011 |
| Windrush Heights Management Company Limited | Households | 2019 |
| Wingate Gray Property Ltd | Real estate | 2025 |
| Wingate Studio Ltd | Manufacturing | 2022 |
| Wisepick Limited | Real estate | 1980 |
| Witchampton Developments Ltd | Construction | 2013 |
| Without a Head Ltd | Information & communication | 2025 |
| Wits END PUB Co Ltd | Hospitality | 2023 |
| Wixbury Ltd | Information & communication | 2023 |
| Woodlands Court Freehold Limited | Households | 2000 |
| Woodsview OUT of School Activities Ltd | Health & social care | 2025 |
| Woolsbridge Developments Ltd | Construction | 2021 |
| Wootton Heights Management Company Limited | Households | 2001 |
| Woron Holdings Ltd | Financial services | 2025 |
| Worthylane Property Management Limited | Households | 1983 |
| WW Holdco Ltd | Professional & scientific | 2016 |
| WWG Services Ltd | Construction | 2026 |
| Wyatt Physiotherapy Ltd | Health & social care | 2025 |
| X Days Limited | Extraterritorial | 2020 |
| Xenial Ltd | Wholesale & retail | 2009 |
| Xilant Fire and Security Limited | Manufacturing | 2020 |
| Yellow Flare Limited | Professional & scientific | 2011 |
| YES! and ... Limited | Professional & scientific | 2001 |
| Yolicious Ltd | Hospitality | 2014 |
| Your Mortgage Connection Ltd. | Financial services | 2016 |
| Youwill Ltd | Transport & logistics | 2008 |
| YTS (Yorkshire) Limited | Wholesale & retail | 2017 |
| ZBP Limited | Professional & scientific | 2021 |
| Zelezny Properties Ltd | Real estate | 2023 |
| Zero One Technology Group Ltd | Information & communication | 2019 |
| Zest Property Ltd | Real estate | 2015 |
| Zinch Designs Ltd | Manufacturing | 2013 |
| Zinch Limited | Manufacturing | 2006 |
| ZK Energy Ltd | Administrative & support | 2017 |
| ZN Psychology Limited | Professional & scientific | 2024 |
| Zone Vale Limited | Construction | 2007 |
| ZPM Business Investment Ltd | Professional & scientific | 2021 |
| Zuva Care Services Ltd | Administrative & support | 2025 |