| Z Autoz Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Z & L Construction Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| YZ Auto Salvage Ltd | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Yuvam Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £6,640 |
| Yusen Logistics (UK) Ltd | Yusen Logistics | freight and logistics | workplace safety or health violation | 2013 | UK-HSE | £12,067 |
| YUNHE COUNTY TIANYU TRADING CO., LTD t/a MYY Official Store | | | product standards | 2022 | UK-OPSS | £0 |
| Yummy Yum Foods Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yummy Yum Foods Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yummy Yum Foods Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yummy Yum Foods Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Yummy Yum Foods Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Yummy House | | | fire safety violation | 2023 | UK-NIFRS | £1,458 |
| Yumi Grill House Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Yuill & Dodds Limited | | | workplace safety or health violation | 2010 | UK-HSE | £6,000 |
| YUANXIN025 | | | product standards | 2022 | UK-OPSS | £0 |
| YS Building Services Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| YS Building Services Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| YS Building Services Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| YS Building Services Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| YS Building Services Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| YS Building Services Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| YS Building Services Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| YS Building Services Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| YS Building Services Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| YS Building Services Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Youth Engineering Scunthorpe Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Your Waste Recycled Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Your Waste Recycled Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Your Waste Recycled Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Your Space Property Developments Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Your Space Property Developments Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Your Local London Builder Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| Your Local London Builder Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| Your Green Energy Company Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Your Green Energy Company Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Your Design & Build Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Your Design & Build Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Your Design & Build Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Your Design & Build Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Your Design & Build Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Youngsters (registration until: 31 Aug 2022) | | | childcare and educational services violation | 2022 | UK-OFSTED | £0 |
| Youngsters | | | childcare and educational services violation | 2022 | UK-OFSTED | £0 |
| Youngs Transportation & Logistics Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| Youngs Transportation & Logistics Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| Youngs Transportation & Logistics Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Youngs Transportation & Logistics Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| Youngs Scaffolding Contractors Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Youngs Scaffolding Contractors Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Young's Seafood Limited | Sofina Foods | food products | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Young's Seafood Limited | Sofina Foods | food products | workplace safety or health violation | 2021 | UK-HSE | £820,943 |
| Young Wilson & Cunningham Limited | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Young Wilson & Cunningham Limited | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Young People Matter At Elm Wood Primary School | | | childcare and educational services violation | 2022 | UK-OFSTED | £0 |
| Young Ones Nursery | | | childcare and educational services violation | 2022 | UK-OFSTED | £0 |
| Young Foundations Limited Warwickshire Residential special school (registered as a children's home) | | | childcare and educational services violation | 2022 | UK-OFSTED | £0 |
| Young Dancers Academy | | | childcare and educational services violation | 2022 | UK-OFSTED | £0 |
| Young Builders North East Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Young Builders North East Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Young Builders North East Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Young Birch Ltd Birmingham Children's home | | | childcare and educational services violation | 2021 | UK-OFSTED | £0 |
| Youles Building Contractors Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| You Building Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Yorwaste Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Yorvik Homes Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Yorkshire Water Services Limited | Kelda Group | utilities and power generation | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Yorkshire Water Services Limited | Kelda Group | utilities and power generation | workplace safety or health violation | 2015 | UK-HSE | £751,818 |
| Yorkshire Vets Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Yorkshire Vets Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Yorkshire Surfacing and Construction Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Yorkshire Stonework Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| Yorkshire Stonework Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| Yorkshire Spin Galvanising Ltd | | | workplace safety or health violation | 2010 | UK-HSE | £15,000 |
| Yorkshire Repak Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yorkshire Repak Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yorkshire Repak Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yorkshire Property Developers Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Yorkshire Profiles Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Yorkshire Powder Coaters Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| Yorkshire Poultry Products Limited | | | food safety violation | 2011 | UK-FS | £14,000 |
| Yorkshire Pine Factory Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yorkshire Metals Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Yorkshire Metal Finishers Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| Yorkshire Land and Property Company Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Yorkshire Hydropower Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yorkshire Hydropower Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yorkshire Grown Produce Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Yorkshire Greens Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yorkshire Greens Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yorkshire Greens Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yorkshire Game Farm | | | workplace safety or health violation | 2023 | UK-HSE | £33,175 |
| Yorkshire Fried Chicken Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Yorkshire Dairy Goats | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Yorkshire Dairy Goats | | | workplace safety or health violation | 2022 | UK-HSE | £200,000 |
| Yorkshire Country Properties (Shepley Phase 1) Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Yorkshire Country Properties (Shepley Phase 1) Lim | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Yorkshire Abattoir Services Limited | | | food safety violation | 2018 | UK-FS | £34,235 |
| York St John University | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| York St John University | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| York Potash Ltd | Anglo American PLC | mining and minerals | workplace safety or health violation | 2018 | UK-HSE | £0 |
| York Potash Ltd | Anglo American PLC | mining and minerals | workplace safety or health violation | 2018 | UK-HSE | £0 |
| York Potash Ltd | Anglo American PLC | mining and minerals | workplace safety or health violation | 2021 | UK-HSE | £0 |
