| Woodlands Funerals Limited | Other services | 2013 |
| Woodlands Village Limited | Real estate | 2013 |
| Woodman Motor Company Limited | Wholesale & retail | 2007 |
| Woodman Property Company Limited | Real estate | 2017 |
| World Golden EYE Ltd | Hospitality | 2021 |
| Worthy Studios Limited | Arts & recreation | 2025 |
| WR Property Ltd | Real estate | 2024 |
| Wrea Brook Holdings Limited | Financial services | 2024 |
| Wrealands Investments Limited | Real estate | 1973 |
| Wright Consulting Services Limited | Professional & scientific | 2017 |
| WSM Estates Limited | Real estate | 2026 |
| Www.Thesocialgolfer.Net Ltd | Information & communication | 2009 |
| X.P.L. Limited | Transport & logistics | 1998 |
| Xceptional Kitchens Limited | Construction | 2009 |
| XLY Ltd | Professional & scientific | 2017 |
| Yacht Crew Limited | Extraterritorial | 2013 |
| Yara Aircraft Engineering Ltd | Professional & scientific | 2017 |
| Yates Logistics Ltd | Transport & logistics | 2023 |
| Yates Medical Referee Ltd | Public administration | 2025 |
| Yellow Hart Properties Ltd | Real estate | 2019 |
| Yendys Ltd | Information & communication | 2021 |
| YEW Trees Property Ltd | Real estate | 2022 |
| Yinghua Tech Limited | Information & communication | 2017 |
| Yohden Hall Developments Ltd | Real estate | 2019 |
| Yorkshire DRY Lining Ltd | Construction | 2015 |
| Youngwork Happy Ltd | Health & social care | 2020 |
| Your Barre Studio Ltd | Arts & recreation | 2020 |
| Your Body Consultants Limited | Education | 2023 |
| Your Smart Home Limited | Wholesale & retail | 2011 |
| Yourlocalwindowcompany Ltd | Construction | 2021 |
| Youthteamhq Limited | Information & communication | 2025 |
| YR Sales, Lettings & Property Services Limited | Real estate | 2016 |
| Z Elite Coaching Ltd | Other services | 2025 |
| Z&K Properties Ltd | Construction | 2021 |
| Z&K Property Portfolio Ltd | Real estate | 2021 |
| Z&K Sales Ltd | Hospitality | 2020 |
| Zack Mcguirk Ltd | Hospitality | 2019 |
| ZAN Properties Ltd | Real estate | 2020 |
| Zanaviation Limited | Professional & scientific | 2025 |
| Zapdash Ltd | Information & communication | 2025 |
| Zapocom Limited | Extraterritorial | 2023 |
| Zazen Digital Limited | Professional & scientific | 2023 |
| Zell-Em Group Holding Limited | Real estate | 2023 |
| Zeon Golf Limited | Manufacturing | 2022 |
| Zero Entertainment UK Ltd | Information & communication | 2024 |
| Zeto Ltd | Information & communication | 2010 |
| ZF Property Mgmt Ltd | Real estate | 2020 |
| Zixio Group Limited | Extraterritorial | 2010 |
| Zonical Ltd | Professional & scientific | 2018 |
| Zora Hairdressing Limited | Other services | 2012 |
| ZUB Architecture Ltd | Professional & scientific | 2017 |