| Y&S Furniture Ltd | Wholesale & retail | 2019 |
| Y.O IT Service Limited | Professional & scientific | 2014 |
| Yaamir Corporation Ltd | Wholesale & retail | 2024 |
| Yadgar Investments Ltd | Real estate | 2026 |
| Yahyah Optical Ltd | Health & social care | 2022 |
| Yakub Traders Ltd | Wholesale & retail | 2025 |
| Yakubmd Ltd | Hospitality | 2025 |
| YAM IT Ltd | Wholesale & retail | 2025 |
| Yasin & Amirah Limited | Real estate | 2024 |
| YDK LL Ltd | Wholesale & retail | 2025 |
| Yeas & Aayan Ltd | Other services | 2023 |
| Yeatz Fresh Ltd | Wholesale & retail | 2025 |
| Yeild Crafters Limited | Wholesale & retail | 2024 |
| Yellowkenny Ltd | Construction | 2015 |
| Yemserve Ltd | Professional & scientific | 2020 |
| Yesil KOY Limited | Hospitality | 2024 |
| Yevu Ltd | Construction | 2015 |
| Yezar Limited | Real estate | 2023 |
| Yicosa Ltd | Information & communication | 2017 |
| YIN Couriers Ltd | Transport & logistics | 2024 |
| Yixing International Trading Co Ltd | Wholesale & retail | 2026 |
| YKD Couriers Limited | Other services | 2019 |
| YM Facilities Management Ltd | Professional & scientific | 2021 |
| YMV Technology Ltd | Information & communication | 2023 |
| Yohan Real Estate Ltd | Real estate | 2026 |
| Yolab Ltd | Health & social care | 2016 |
| Yosti 2024 Limited | Health & social care | 2024 |
| Young Pharoah Limited | Manufacturing | 2015 |
| Young Professionals in Kingdom Ltd | Administrative & support | 2013 |
| Your Cinema Distribution Ltd | Information & communication | 2021 |
| Your Cinema Events Ltd | Administrative & support | 2024 |
| Your Cinema Studios Ltd | Information & communication | 2023 |
| Your Daily Needs Limited | Wholesale & retail | 2017 |
| Your JEM Property Limited | Real estate | 2018 |
| Your Tax Accountant Ltd | Professional & scientific | 2021 |
| Yourperfectbrand Ltd | Manufacturing | 2023 |
| Yousave Ltd | Other services | 2012 |
| Youth Empowerment Community Interest Company | Arts & recreation | 2026 |
| Youth Empowerment Project Ltd | Arts & recreation | 2024 |
| Ypik Global Ltd | Administrative & support | 2019 |
| YSA Investments Ltd | Real estate | 2023 |
| YTA Logistics Ltd | Transport & logistics | 2018 |
| Yummyland (UK) Limited | Wholesale & retail | 2023 |
| Yurub Care Ltd | Health & social care | 2022 |
| Yusra Finance Ltd | Professional & scientific | 2020 |
| YZA ANA Melissa Ltd | Transport & logistics | 2024 |
| Z and D Care Limited | Administrative & support | 2019 |
| Z Homes & Properties Limited | Real estate | 2024 |
| Z Joinery Limited | Manufacturing | 2023 |
| Z Motors London Limited | Wholesale & retail | 2025 |
| Z&A Limited | Wholesale & retail | 2019 |
| Z&S Estates Ltd | Real estate | 2024 |
| Z&Z COM Ltd | Real estate | 2026 |
| Z.N. Group Limited | Wholesale & retail | 2025 |
| ZAC Chaudhry Limited | Wholesale & retail | 2023 |
| Zafar & Co Accountants Ltd | Professional & scientific | 2026 |
| Zainia Foods Ltd | Hospitality | 2024 |
| Zaiwaar LDN Ltd | Manufacturing | 2021 |
| ZAK Food Products Ltd | Wholesale & retail | 2023 |
| ZAK London Limited | Wholesale & retail | 2021 |
| Zakir Hossain Properties Ltd | Real estate | 2025 |
| Zaliys Ltd | Wholesale & retail | 2025 |
| Zamar House Limited | Health & social care | 2015 |
| Zamzam Online Limited | Wholesale & retail | 2017 |
| Zanbeal Studios Limited | Information & communication | 2014 |
| Zanzibar Hot Style Ltd | Hospitality | 2025 |
| Zapco Electrical Ltd | Construction | 2026 |
| ZAR Investments Group Ltd | Real estate | 2016 |
| Zardozi Pret London Ltd | Wholesale & retail | 2025 |
| Zaresa Limited | Health & social care | 2015 |
| Zarina Bibi Wear Limited | Wholesale & retail | 2025 |
| Zarish Norita Limited | Information & communication | 2025 |
| Zayn Technology Limited | Information & communication | 2022 |
| Zayyan Foods Distribution Ltd | Wholesale & retail | 2017 |
| ZBM Properties Ltd | Real estate | 2021 |
| Zbrickwork Ltd | Construction | 2024 |
| ZE1 Ltd | Wholesale & retail | 2023 |
| ZEB Services UK Ltd | Transport & logistics | 2025 |
| ZEC Services Ltd | Administrative & support | 2025 |
| ZEE ZEE Event Planners Limited | Hospitality | 2018 |
| Zeesh Ltd | Wholesale & retail | 2020 |
| Zeewas Ltd | Wholesale & retail | 2024 |
| Zein Decorators Limited | Construction | 2025 |
| Zellion Ltd | Wholesale & retail | 2025 |
| Zemain Ltd | Wholesale & retail | 2024 |
| Zemma Construction Ltd | Construction | 2022 |
| ZEN Vlad Limited | Construction | 2011 |
| Zendeen Investments Ltd | Real estate | 2021 |
| Zenith Motors Ltd | Administrative & support | 2016 |
| Zenithzest Hospitality Ltd | Hospitality | 2025 |
| Zenitron Ltd | Administrative & support | 2024 |
| Zentorix Commerce Ltd | Wholesale & retail | 2026 |
| Zereco Prytex Ltd | Professional & scientific | 2024 |
| ZES Trading Company Ltd | Real estate | 2022 |
| Zesan Properties Ltd | Real estate | 2023 |
| Zetabyte Consulting Ltd | Information & communication | 2015 |
| Zettalorrys Limited | Transport & logistics | 2022 |
| Zewliz Ltd | Wholesale & retail | 2022 |
| Zezi Services Ltd | Transport & logistics | 2023 |
| Zflas Limited | Construction | 2022 |