| Yorkshire Caravans Group Limited | Professional & scientific | 2016 |
| Yorkshire Classics Limited | Wholesale & retail | 2016 |
| Yorkshire Contracting Ltd | Extraterritorial | 2020 |
| Yorkshire Crane Hire Limited | Construction | 2002 |
| Yorkshire Cricket Limited | Arts & recreation | 2013 |
| Yorkshire Doctors Services Ltd | Health & social care | 2019 |
| Yorkshire Edible Flowers Ltd | Agriculture & fishing | 2020 |
| Yorkshire EHS Solutions Ltd | Professional & scientific | 2018 |
| Yorkshire Enviromental Solutions Limited | Professional & scientific | 2019 |
| Yorkshire EYE Company Limited | Wholesale & retail | 2024 |
| Yorkshire Facilities Management Ltd | Real estate | 2024 |
| Yorkshire Facility Services Ltd | Agriculture & fishing | 2023 |
| Yorkshire Fenestration Limited | Manufacturing | 2026 |
| Yorkshire Financial Centre Ltd. | Real estate | 2002 |
| Yorkshire Financial Services Ltd | Financial services | 2014 |
| Yorkshire Fire Doors Limited | Construction | 2022 |
| Yorkshire Fire Solutions Limited | Professional & scientific | 2008 |
| Yorkshire GAS Supplies Limited | Wholesale & retail | 2016 |
| Yorkshire Gravy Limited | Manufacturing | 2023 |
| Yorkshire Green Heating Ltd | Construction | 2019 |
| Yorkshire Handling Equipment (UK) Limited | Administrative & support | 2017 |
| Yorkshire Hardwoods Limited | Manufacturing | 2019 |
| Yorkshire Holidays Limited | Information & communication | 2011 |
| Yorkshire Home and Garden Improvements Limited | Administrative & support | 2026 |
| Yorkshire Homes Lettings Ltd | Real estate | 2025 |
| Yorkshire Homes Sales Ltd | Real estate | 2025 |
| Yorkshire House Refurbishments Ltd | Construction | 2026 |
| Yorkshire Ice Cream Farm Limited | Hospitality | 2014 |
| Yorkshire Investments Property UK Limited | Real estate | 2024 |
| Yorkshire Kitchen and Bathroom Company Ltd | Construction | 2025 |
| Yorkshire Olive Bowl Ltd | Wholesale & retail | 2009 |
| Yorkshire Plumbing and Heating Services Limited | Construction | 1982 |
| Yorkshire Plumbing Repairs Limited | Construction | 2024 |
| Yorkshire Premium Driveways & Landscaping Ltd | Administrative & support | 2026 |
| Yorkshire Property Repairs Limited | Construction | 2016 |
| Yorkshire Rental Properties Ltd | Real estate | 2021 |
| Yorkshire Rigging Services Ltd | Construction | 2014 |
| Yorkshire Roofing Specialists Limited | Construction | 2022 |
| Yorkshire Safety Training Ltd | Education | 2025 |
| Yorkshire Talent Partners Ltd | Administrative & support | 2023 |
| Yorkshire Tamil Community Ltd | Health & social care | 2026 |
| Yorkshire Tractors Limited | Wholesale & retail | 2014 |
| Yorkshire Trade Car Centre Ltd | Extraterritorial | 2010 |
| Yorkshire Trade Group Limited | Wholesale & retail | 2025 |
| Yorkshire Transport Consultancy Ltd | Professional & scientific | 2024 |
| Yorkshire Transport Services Ltd | Transport & logistics | 2022 |
| Yorkshire Truck Repair Services Ltd | Wholesale & retail | 2022 |
| Yorkshire Wide Electrical Ltd | Construction | 2022 |
| Yorkshire Wildlife Park Limited | Arts & recreation | 2016 |
| Yorkshire Wraps N Tats Ltd | Hospitality | 2025 |
| Yormax Logistic Services Ltd | Transport & logistics | 2024 |
| Yorro Holding Limited | Financial services | 2016 |
| Yorvac Ltd | Wholesale & retail | 2012 |
| YOU & EYE (Edwards & Walker) Ltd | Wholesale & retail | 2014 |
| YOU Medicals Limited | Administrative & support | 2015 |
| Youcloud Solutions Ltd | Information & communication | 2017 |
| Young Tots Nursery Ltd | Health & social care | 2026 |
| Your Business Essentials Ltd | Administrative & support | 2023 |
| Your Car Transport Ltd | Transport & logistics | 2026 |
| Your Choice Houses Limited | Real estate | 2020 |
| Your Digital Ltd | Administrative & support | 2015 |
| Your Direct Deals Limited | Administrative & support | 2025 |
| Your Handling Equipment Limited | Administrative & support | 2025 |
| Your Health Covered Limited | Financial services | 2015 |
| Your Local Market Ltd | Wholesale & retail | 2026 |
| Your Next Chapter Homes Ltd | Real estate | 2025 |
| Your Plan Consultancy Ltd | Professional & scientific | 2014 |
| Your Plan Limited | Professional & scientific | 2012 |
| Your Right Choice Ltd | Wholesale & retail | 2018 |
| Your Space Management Ltd | Real estate | 2023 |
| Your Time Domestic Cleaning Limited | Administrative & support | 2025 |
| Yourcabs Taxi Ltd | Transport & logistics | 2026 |
| Yourhome Construction Ltd | Construction | 2015 |
| Yourkindling Ltd | Health & social care | 2026 |
| Yourmedic Staffing Ltd | Health & social care | 2015 |
| Yousaf Z Limited | Real estate | 2023 |
| Yousef Majid Ltd | Public administration | 2023 |
| Ypef Services Limited | Administrative & support | 2006 |
| YRZ Food & Retail Ltd | Hospitality | 2025 |
| YS Design Services Ltd | Professional & scientific | 2007 |
| YSK Group Ltd | Real estate | 2025 |
| Ytterate Ltd. | Information & communication | 2018 |
| Yuanmore 2026 Limited | Hospitality | 2026 |
| Yuki Solutions Limited | Administrative & support | 2025 |
| Yukiyama Antiques Ltd | Wholesale & retail | 2023 |
| Yukon Property Development Limited | Real estate | 2017 |
| Yukon Property Management Ltd | Households | 2023 |
| Yulta Limited | Professional & scientific | 2018 |
| Yume & Kanji Ltd | Wholesale & retail | 2026 |
| Yummy Food Doncaster Ltd | Hospitality | 2025 |
| Yunusoglu Connect Limited | Wholesale & retail | 2026 |
| Yusuf IT Services Limited | Information & communication | 2025 |
| Z D Repairs Ltd | Wholesale & retail | 2025 |
| Z K T Properties 1 Limited | Hospitality | 2019 |
| Z Stock Ltd | Manufacturing | 2024 |
| Z.S.H Properties Ltd | Real estate | 2024 |
| Z3R0 Limited | Manufacturing | 2018 |
| ZA Foot & Ankle Ltd | Health & social care | 2020 |
| Zaast Ltd | Other services | 2021 |
| ZAB Mobile Ltd | Wholesale & retail | 2021 |