| Yorkshire Embroidery Services Limited | Extraterritorial | 2021 |
| Yorkshire Family Properties Limited | Financial services | 2024 |
| Yorkshire Garden Pods Ltd | Construction | 2022 |
| Yorkshire Global Brands Limited | Extraterritorial | 2019 |
| Yorkshire Golf Ltd | Administrative & support | 2024 |
| Yorkshire Hardware Ltd | Wholesale & retail | 2009 |
| Yorkshire Health & Safety Services Ltd | Professional & scientific | 2015 |
| Yorkshire Industrial Tyres Limited | Wholesale & retail | 2014 |
| Yorkshire Legal Services Ltd | Professional & scientific | 2021 |
| Yorkshire Letters Limited | Real estate | 2012 |
| Yorkshire Mortgage Solutions Limited | Financial services | 2017 |
| Yorkshire Pharma Holdings Ltd | Agriculture & fishing | 2020 |
| Yorkshire Plumbing & Heating Ltd | Construction | 2021 |
| Yorkshire Premier Construction Ltd | Construction | 2023 |
| Yorkshire Premier Rentals Ltd | Real estate | 2025 |
| Yorkshire Premier Sports Limited | Arts & recreation | 2025 |
| Yorkshire Prop Hire Ltd | Administrative & support | 2019 |
| Yorkshire Psychotherapy Ltd | Health & social care | 2017 |
| Yorkshire Remaps Ltd | Wholesale & retail | 2018 |
| Yorkshire Repak Group Limited | Professional & scientific | 2023 |
| Yorkshire Repak Holdings Limited | Professional & scientific | 2015 |
| Yorkshire Roofing Supplies Ltd | Extraterritorial | 2016 |
| Yorkshire Rose Coaches Limited | Transport & logistics | 2019 |
| Yorkshire Rose Coffee Shop Huddersfield Ltd | Hospitality | 2023 |
| Yorkshire Rose Coffee Shop Limited | Hospitality | 2022 |
| Yorkshire Rose Enterprises Limited | Financial services | 2019 |
| Yorkshire Rose Holidays Huddersfield Ltd | Administrative & support | 2023 |
| Yorkshire Rose Holidays Ltd | Administrative & support | 2020 |
| Yorkshire Rose Holidays Pontefract Ltd | Administrative & support | 2024 |
| Yorkshire Rose Property and Leisure Ltd | Extraterritorial | 2025 |
| Yorkshire Rose Trophies Limited | Wholesale & retail | 2022 |
| Yorkshire Rose Wills Limited | Professional & scientific | 2020 |
| Yorkshire Service Centre Ltd | Wholesale & retail | 2021 |
| Yorkshire Sivan Temple Ltd | Real estate | 2026 |
| Yorkshire Specialist Coatings Limited | Construction | 2015 |
| Yorkshire Surfacing & Landscaping Limited | Construction | 2025 |
| Yorkshire Warm Roofs Ltd | Construction | 2019 |
| Yorkshire Wildlings CIC | Education | 2025 |
| Yorkshire Wills & Estate Planning Ltd | Professional & scientific | 2021 |
| Yorkshire Wills & Probate Ltd | Professional & scientific | 2020 |
| Yorkshireplay Ltd | Arts & recreation | 2026 |
| Yorkshires Green With Energy Limited | Construction | 2011 |
| YOU Just Heat Limited | Hospitality | 2025 |
| Young OR Old ALL Beautiful Ltd | Wholesale & retail | 2024 |
| Younger Homes (Lincolnshire) Limited | Real estate | 2022 |
| Your Care Provider Ltd | Health & social care | 2017 |
| Your Mortgage Advice Limited | Financial services | 2015 |
| Your Springboard Limited | Financial services | 2012 |
| Your Story Studios Limited | Professional & scientific | 2019 |
| Your VA Ltd | Administrative & support | 2011 |
| Youth Empowerment Coaching CIC | Health & social care | 2025 |
| Yoyo Limited | Professional & scientific | 2022 |
| Ytaf Ltd | Health & social care | 2026 |
| Yung Limited | Hospitality | 2026 |
| Yusuf Nishat Ltd | Wholesale & retail | 2025 |
| Z&Sun Limited | Transport & logistics | 2025 |
| Zachary Lockwood Ltd | Construction | 2025 |
| Zaher Younis Consulting Ltd | Professional & scientific | 2004 |
| Zajac Property Ltd | Real estate | 2025 |
| Zaman Capital Investments Ltd | Real estate | 2024 |
| Zara Delivery Ltd | Transport & logistics | 2022 |
| Zaura Holdings Ltd | Financial services | 2026 |
| Zaura Technologies Ltd | Information & communication | 2026 |
| ZD Estates Limited | Real estate | 2017 |
| ZED Bike Wheels Limited | Manufacturing | 2021 |
| ZED Racing Ltd | Wholesale & retail | 2016 |
| ZEN Partners Limited | Wholesale & retail | 2018 |
| ZEN Warrior Ltd | Wholesale & retail | 2021 |
| Zenchi Ltd | Information & communication | 2012 |
| Zengeya Productions Limited | Information & communication | 2018 |
| Zenith Digital Accountants Ltd | Professional & scientific | 2025 |
| Zenith Park Developments Limited | Real estate | 2014 |
| Zenith Park Estates Limited | Financial services | 2018 |
| Zenzero Business Limited | Professional & scientific | 2007 |
| Zest Agency Ltd | Professional & scientific | 2024 |
| Zest Business Support Limited | Administrative & support | 2013 |
| Zimkren Limited | Health & social care | 2018 |
| Zimpol Limited | Real estate | 2020 |
| Zipnzap Ltd | Arts & recreation | 2025 |
| Zippy Drop Ltd | Transport & logistics | 2025 |
| Zizina Ltd | Transport & logistics | 2020 |
| Zoom Mobile Limited | Extraterritorial | 2008 |
| Zu-Lu Boutique Mansfield Limited | Wholesale & retail | 2023 |
| Zu-Lu Crystal Peaks T/A Zu-Lu Boutique Ltd | Wholesale & retail | 2026 |
| Zvrsell Ltd | Wholesale & retail | 2025 |
| Zygibal Ltd | Transport & logistics | 2024 |
| Zyper Catering Limited | Hospitality | 2021 |
| ZZC Systems Ltd | Information & communication | 2022 |
| ZZD Prop Limited | Real estate | 2014 |