| Wolf Creek Brewing Supplies Ltd | Wholesale & retail | 2022 |
| Wolf MAG Ltd | Manufacturing | 2020 |
| Wolfclip UK Ltd | Other services | 2017 |
| Wolfhound PPS Ltd | Health & social care | 2012 |
| Wood Lane Fish Bar Ltd | Hospitality | 2023 |
| Woodhouses Paddock Limited | Agriculture & fishing | 2014 |
| Woodhurst Innovations Limited | Professional & scientific | 2012 |
| Woodlands Residents Association (Tatenhill) Limited | Households | 1998 |
| Woodville Accounting & Payroll Ltd | Professional & scientific | 2018 |
| Woodward Electrical Limited | Construction | 2003 |
| Woodwardia Group Limited | Hospitality | 2026 |
| Woodwardia Projects Limited | Construction | 2026 |
| Wordsmith Projects Limited | Professional & scientific | 2021 |
| Workforce Recruit Ltd | Administrative & support | 2022 |
| Worthwindows Ltd | Construction | 2026 |
| Woven Holdings Ltd | Professional & scientific | 2021 |
| Woven Properties Ltd | Real estate | 2022 |
| WP & WA Hermitage Limited | Real estate | 2026 |
| Wrap Logistics Limited | Transport & logistics | 2021 |
| Wraps and Grills Limited | Hospitality | 2024 |
| Wright Industries Holdings Limited | Financial services | 2026 |
| Wright Industries Investments Limited | Financial services | 2021 |
| Wright Software Limited | Wholesale & retail | 2026 |
| Wright Training Solutions Limited | Administrative & support | 2019 |
| Wrogel Management Limited | Financial services | 2014 |
| WS9 Music Ltd | Extraterritorial | 2019 |
| Wspp UK Limited | Wholesale & retail | 2022 |
| WT Funk Band Limited | Arts & recreation | 2024 |
| WTD Enterprises Ltd | Financial services | 2025 |
| Wtslogistics Ltd | Transport & logistics | 2025 |
| WW Shows Limited | Administrative & support | 2010 |
| WWC Worldwide Crews Ltd | Administrative & support | 2025 |
| Wwrlp Ltd | Professional & scientific | 2024 |
| Wyggeston ST Fish Bar Limited | Hospitality | 2022 |
| Wyggi-Rams Ltd | Hospitality | 2024 |
| Wyld Life Limited | Education | 2022 |
| Wyvern Court Management Limited | Real estate | 2007 |
| X Hidden Limited | Information & communication | 2024 |
| X-Pro Learning Solutions Ltd | Professional & scientific | 2020 |
| X180 Limited | Professional & scientific | 2013 |
| X250 Limited | Professional & scientific | 2025 |
| Xameliax Limited | Professional & scientific | 2015 |
| Xanzan Limited | Construction | 2019 |
| Xcel Maintenance Services Nelson Limited | Construction | 2022 |
| Xeocom Limited | Information & communication | 2013 |
| Xintl Ltd | Extraterritorial | 2023 |
| XM Communications Limited | Wholesale & retail | 2003 |
| Xpress Print Solutions Limited | Professional & scientific | 2015 |
| XPS Foam Limited | Manufacturing | 2011 |
| Xtra Room Conversions Limited | Construction | 1976 |
| Y.I.D Enterprise Ltd | Construction | 2024 |
| YAR Diamond Ltd | Other services | 2025 |
| Yard Derby Limited | Real estate | 2022 |
| Yasin Aurum Limited | Financial services | 2025 |
| Yassermahmood Ltd | Wholesale & retail | 2023 |
| YB Lynks Ltd | Wholesale & retail | 2025 |
| YBK Holdings Ltd | Professional & scientific | 2025 |
| Yesgaffa Ltd | Information & communication | 2026 |
| Yiic Medical Imaging Limited | Health & social care | 2025 |
| YLA Property Ltd | Real estate | 2026 |
| Ymnb Ltd | Transport & logistics | 2023 |
| Yokai Shop Ltd | Wholesale & retail | 2026 |
| Yong HAO Limited | Hospitality | 2022 |
| Yorkshire GP Services Ltd | Health & social care | 2025 |
| YOU + I People Co. Ltd | Professional & scientific | 2025 |
| YOU 1ST Emotional Support CIC | Administrative & support | 2021 |
| Young Tech Solutions Limited | Wholesale & retail | 2015 |
| Your Local GP Ltd | Health & social care | 2024 |
| Yoxall Chiropractic Ltd | Health & social care | 2026 |
| Yoxall Windows & Plastics Ltd | Construction | 2016 |
| Yrmi Connect Ltd | Transport & logistics | 2026 |
| Z&A Delights Limited | Wholesale & retail | 2025 |
| Z&B Quick Delivery Ltd | Wholesale & retail | 2023 |
| Z.Y.A Electrical Services Limited | Construction | 2025 |
| Zaflex Electrical Ltd | Construction | 2026 |
| Zahra Homes Ltd | Real estate | 2024 |
| Zainyz Limited | Wholesale & retail | 2025 |
| Zamh Properties Ltd | Real estate | 2017 |
| ZAN Builders Ltd | Construction | 2025 |
| Zarela Limited | Wholesale & retail | 2016 |
| Zarooteam Ltd | Other services | 2024 |
| Zaveron Limited | Wholesale & retail | 2023 |
| Zaynish Lahori Ltd | Hospitality | 2022 |
| Zayyan Ltd | Wholesale & retail | 2025 |
| Zebe Service Ltd | Transport & logistics | 2022 |
| Zebra Shed Limited | Professional & scientific | 2013 |
| Zencore Limited | Wholesale & retail | 2010 |
| Zentra Pro Limited | Wholesale & retail | 2026 |
| Zenwatt Ltd | Professional & scientific | 2024 |
| Zhao & Sons Limited | Real estate | 2020 |
| Zia’S Wholesales Limited | Hospitality | 2019 |
| Zico Incorporated Ltd | Financial services | 2024 |
| Zigazigapp Ltd | Information & communication | 2014 |
| Ziggy INK Tattoo Limited | Other services | 2021 |
| Ziggy Tattoo School Limited | Education | 2024 |
| Zilla Limited | Construction | 2020 |
| Zimmer Group (UK) Limited | Administrative & support | 2009 |
| Zine Properties Ltd | Real estate | 2020 |
| Ziomek Minimarket 4U Ltd | Wholesale & retail | 2023 |
| Zirnits Limited | Transport & logistics | 2022 |