| Worldstar Services Limited | Extraterritorial | 1998 |
| Worldtop Enterprises Ltd | Real estate | 2000 |
| Worldwide Apartments Limited | Administrative & support | 2013 |
| Worship Marketing Limited | Information & communication | 2021 |
| Wothap Ltd | Professional & scientific | 2022 |
| WOW Kids Media Ltd | Information & communication | 2016 |
| WOW World Group East London Ltd. | Education | 2020 |
| WP Pharma Consulting Ltd | Professional & scientific | 2015 |
| Wprg Limited | Administrative & support | 2003 |
| Wright & Co Services Ltd | Professional & scientific | 2026 |
| Wright Enterprises Limited | Professional & scientific | 2025 |
| Wrzzer Ltd | Manufacturing | 2018 |
| WS Partners Consultancy Limited | Professional & scientific | 2025 |
| WSL Staffing Ltd | Hospitality | 2026 |
| Wsopras Ltd | Health & social care | 2023 |
| WTV Tech Limited | Professional & scientific | 2022 |
| Wundermark Limited | Wholesale & retail | 2021 |
| Wundermein Limited | Wholesale & retail | 2017 |
| WW77PARA Ltd | Transport & logistics | 2023 |
| Wyfold Road Management Company Limited | Households | 2009 |
| Wynmore Capital Ltd | Professional & scientific | 2024 |
| WZ Property Limited | Real estate | 2017 |
| X&Y Property Ltd | Real estate | 2025 |
| X-Tech Group Ltd | Wholesale & retail | 2026 |
| X-Titan Infrastructure Limited | Information & communication | 2026 |
| Xact Solution Ltd | Information & communication | 2025 |
| XBR Autos Ltd | Wholesale & retail | 2025 |
| Xclusive Services Ltd | Arts & recreation | 2018 |
| Xdome Consultants Limited | Information & communication | 2026 |
| Xeinu Ltd | Information & communication | 2016 |
| Xentara Technology Ltd | Information & communication | 2026 |
| Xeon IT Limited | Information & communication | 2013 |
| Xeon Services Ltd | Real estate | 2018 |
| Xionsoft Limited | Information & communication | 2019 |
| XIRSI-STS-27 Ltd | Information & communication | 2022 |
| XL Accounting Solutions Ltd. | Professional & scientific | 2017 |
| Xlondon Ltd | Administrative & support | 2024 |
| Xoocafe Ltd | Information & communication | 1997 |
| Xportx Global Limited | Manufacturing | 2025 |
| Xposure Consulting Limited | Professional & scientific | 2009 |
| Xtreme Plus Xelence Ltd | Wholesale & retail | 2019 |
| Xyxy Properties Ltd | Households | 2024 |
| Y & C Wholesale Limited | Wholesale & retail | 2010 |
| Y and P Limited | Real estate | 2016 |
| Y Commercial Ltd | Professional & scientific | 2019 |
| Y&G Building and Decorating Contractors Ltd | Construction | 2012 |
| Yaal Cash & Carry Ltd | Wholesale & retail | 2024 |
| Yaal Katpaham Retail & Wholesale Ltd | Hospitality | 2025 |
| Yacha Limited | Real estate | 2020 |
| Yaffo Limited | Real estate | 2018 |
| Yaitte Ltd | Other services | 2017 |
| Yaki YA! Ltd | Hospitality | 2019 |
| Yakov's Kitchen Limited | Hospitality | 2023 |
| Yama Construction Limited | Construction | 2026 |
| YAP Holdings Limited | Financial services | 2024 |
| Yaqub Motors Limited | Wholesale & retail | 2025 |
| Yara Consultancy Ltd | Professional & scientific | 2020 |
| Yareta Ltd | Professional & scientific | 2023 |
| Yarok (Edgware UK) Limited | Wholesale & retail | 2026 |
| Yarok Fruit & Vegetables Ltd | Wholesale & retail | 2016 |
| Yarto Europe Limited | Wholesale & retail | 2004 |
| Yarto Holdings Limited | Real estate | 2015 |
| YAS Capital Limited | Real estate | 2019 |
| Yascan Limited | Administrative & support | 2010 |
| Yash Construction Ltd | Construction | 2023 |
| Yasin Digital Ventures Ltd | Wholesale & retail | 2026 |
| Yasmine Florist Ltd | Wholesale & retail | 2008 |
| Yasmir AH1 Ltd | Real estate | 2026 |
| Yasoft Limited | Information & communication | 2018 |
| Yathra Group Ltd | Wholesale & retail | 2019 |
| Yaze's Beauty Limited | Wholesale & retail | 2014 |
| Yazz Investments Limited | Real estate | 2007 |
| Yazzpt Limited | Arts & recreation | 2025 |
| YBE Accounting Limited | Professional & scientific | 2015 |
| Ybis Group Ltd | Administrative & support | 2020 |
| Ybro Limited | Information & communication | 2017 |
| Yeladenu Ltd | Education | 2025 |
| Yellow Stone Investments Ltd | Financial services | 2023 |
| Yellow Submarine Properties Ltd | Real estate | 2017 |
| Yellowbase Limited | Hospitality | 2013 |
| Yemflo Ltd | Administrative & support | 2019 |
| YES Group of Companies Limited | Wholesale & retail | 2023 |
| Yeshaswi Limited | Information & communication | 2017 |
| Yeshiva Gedoilah Torah Veyirah Limited | Education | 2010 |
| Yeshivas Mekor Chayim Ltd | Other services | 2019 |
| YG Property Management Ltd | Real estate | 2025 |
| YH Commercial Cleaning Ltd | Administrative & support | 2023 |
| YII Designs Limited | Construction | 2008 |
| Ying Medical Service Limited | Health & social care | 2020 |
| YL Food Consultancy Ltd | Professional & scientific | 2020 |
| YLS Interiors Ltd | Construction | 2019 |
| Ymal Limited | Households | 2025 |
| YMK Corporation Ltd | Wholesale & retail | 2022 |
| YMM Services Ltd | Professional & scientific | 2019 |
| YNK Catering Limited | Hospitality | 2021 |
| Yodav Property Solutions Ltd | Other services | 2024 |
| Yodj Ltd | Administrative & support | 2024 |
| Yog-Kulam | Education | 2020 |
| Yoga Retreat Holidays Ltd | Extraterritorial | 2016 |
| Yogabelle’S Limited | Wholesale & retail | 2023 |