| Ymca Walsall | Hospitality | 1996 |
| YN Transport Limited | Transport & logistics | 2024 |
| YNP Clinical Research Ltd | Professional & scientific | 2021 |
| Yoga Course. COM Limited | Education | 2019 |
| Yogihaus Properties Ltd | Real estate | 2025 |
| Yoko Holdinngs Ltd | Manufacturing | 2025 |
| Yoko Transport Ltd | Transport & logistics | 2020 |
| Yomsflow Transport Ltd | Transport & logistics | 2025 |
| Yonaen Ltd | Transport & logistics | 2024 |
| Yorkshire Forward Limited | Other services | 2015 |
| Yoshe Nail 2 Company Limited | Other services | 2016 |
| Young Residential Investments Limited | Real estate | 2026 |
| Young’S Academy of Dance Limited | Other services | 2011 |
| Youpost Limited | Transport & logistics | 2025 |
| Your Locum VET Ltd | Professional & scientific | 2019 |
| Your Place Your Space Limited | Information & communication | 2010 |
| Your Property P4RTNER Ltd | Households | 2024 |
| Your Sign Stop Ltd | Manufacturing | 2015 |
| Your Transporters Ltd | Transport & logistics | 2025 |
| Your VIP Chauffeur Limited | Transport & logistics | 2023 |
| Your Wills Portal Ltd | Professional & scientific | 2025 |
| Yourchichome Ltd | Real estate | 2021 |
| Yourmindinmyhand.Com Community Interest Company | Extraterritorial | 2024 |
| Yourtaste Limited | Hospitality | 2026 |
| YOUSHA786 Ltd | Wholesale & retail | 2023 |
| Ypcg Limited | Real estate | 2023 |
| Ypcg Services Limited | Health & social care | 2004 |
| Yptc Services Limited | Health & social care | 2023 |
| YPV 2 Ltd | Real estate | 2019 |
| YPV 3 Ltd | Real estate | 2022 |
| Yrah Group Ltd | Wholesale & retail | 2024 |
| YRF Ltd | Information & communication | 2021 |
| YSM Ltd | Real estate | 2020 |
| Yuby Trans Limited | Transport & logistics | 2019 |
| Yuefeng Transportation Ltd | Transport & logistics | 2020 |
| Yugibuildings Limited | Construction | 2024 |
| Yummy BC Foods Limited | Hospitality | 2023 |
| Yuvav Ltd | Real estate | 2020 |
| Yvonne Allan ANP Limited | Public administration | 2026 |
| YWH Services Limited | Professional & scientific | 2023 |
| YZA Homes Ltd | Real estate | 2025 |
| Z & M Consulting Ltd | Professional & scientific | 2020 |
| Z and M Transport Ltd | Transport & logistics | 2024 |
| Z H Car Sales and Services Ltd | Wholesale & retail | 2017 |
| Z H Commerce Limited | Real estate | 2023 |
| Z H Medicare Limited | Health & social care | 2012 |
| Z H Recovery Ltd | Transport & logistics | 2017 |
| Z Yaseen Optics Ltd | Professional & scientific | 2021 |
| Z&K Fish Food Ltd | Hospitality | 2026 |
| Z'S Deals Ltd | Wholesale & retail | 2025 |
| ZA & Khan Limited | Health & social care | 2018 |
| ZAB Medicare Limited | Health & social care | 2010 |
| Zabi Online Limited | Wholesale & retail | 2025 |
| Zada Farm Limited | Agriculture & fishing | 2022 |
| Zafar Ltd | Health & social care | 2024 |
| Zago Ltd | Manufacturing | 2015 |
| Zahir Ashraf Limited | Transport & logistics | 2015 |
| Zahz Management Company Ltd | Professional & scientific | 2024 |
| Zain Logistics Ltd | Transport & logistics | 2024 |
| Zak's Halal Ltd | Hospitality | 2022 |
| Zakaria Y Ltd | Health & social care | 2020 |
| Zakir Engineering Ltd | Manufacturing | 2021 |
| Zakshe Estates Ltd | Real estate | 2021 |
| ZAL Pharma Ltd | Health & social care | 2025 |
| Zalidev Ltd | Information & communication | 2025 |
| Zamac Ltd | Construction | 2010 |
| Zamani London Limited | Manufacturing | 2026 |
| Zamir Estates Ltd | Real estate | 2025 |
| Zamzam Fruit & VEG Limited | Wholesale & retail | 2020 |
| Zandi Tyres Centre Ltd | Wholesale & retail | 2024 |
| Zandi Tyres Valeting Ltd | Wholesale & retail | 2023 |
| Zanshin Sports Therapy Ltd | Education | 2018 |
| Zantian Trading Ltd | Wholesale & retail | 2026 |
| Zarev Construction Ltd | Construction | 2019 |
| Zartech Designs Ltd | Professional & scientific | 2025 |
| ZAS Solutions Ltd | Hospitality | 2018 |
| Zash Developments Limited | Real estate | 2025 |
| Zatun Group Ltd | Hospitality | 2025 |
| Zavi Home Education Centre Ltd | Education | 2023 |
| Zavishop Ltd | Wholesale & retail | 2026 |
| Zayaan Medical Ltd | Manufacturing | 2021 |
| Zayan Travel & Visa Services Ltd | Financial services | 2023 |
| Zayf Medical & Aesthetics Ltd | Health & social care | 2022 |
| Zayna Essentials Ltd | Wholesale & retail | 2025 |
| ZBC Solutions Ltd | Professional & scientific | 2025 |
| ZBR Global Ltd | Wholesale & retail | 2026 |
| Ze-Dio Ltd | Wholesale & retail | 2025 |
| ZEB Investments Ltd | Real estate | 2023 |
| ZED C Ltd | Wholesale & retail | 2025 |
| ZED Pharma Ltd | Health & social care | 2019 |
| Zedel Properties Ltd | Real estate | 2021 |
| Zedia Investments Limited | Real estate | 2015 |
| ZEE Lawyer Limited | Professional & scientific | 2026 |
| ZEE Management Services Ltd | Wholesale & retail | 2024 |
| ZEE Transport Services Ltd | Transport & logistics | 2025 |
| Zeeshan Motors Ltd | Wholesale & retail | 2024 |
| Zelan Limited | Wholesale & retail | 2017 |
| ZEN Cars Walsall Limited | Wholesale & retail | 2024 |
| ZEN Properties West Midlands Limited | Construction | 2025 |
| ZEN Travels & Tours Limited | Transport & logistics | 2024 |