| York College | | | workplace safety or health violation | 2012 | UK-HSE | £175,000 |
| York Builder.com Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| York Builder.com Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| York Builder.com Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| York and Scarborough Teaching Hospitals NHS Foundation Trust | | | care quality violation | 2022 | UK-CQC | £0 |
| York and Scarborough Teaching Hospitals NHS Foundation Trust | | | care quality violation | 2022 | UK-CQC | £0 |
| York and Scarborough Teaching Hospitals NHS Foun | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Yorbuild Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Yodel Delivery Network Limited | Yodel Delivery Network Limited | freight and logistics | workplace safety or health violation | 2019 | UK-HSE | £0 |
| YMCA Heart of England | | | care quality violation | 2021 | UK-OFSTED | £0 |
| YKS Contractors Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| YKS Contractors Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| YKS Contractors Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| YKS Contractors Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| YK Construction Ltd | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| YK Construction Ltd | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| YK Construction Ltd | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| YJBS Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| YJBS Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| YIYUESHOP | | | product standards | 2023 | UK-OPSS | £0 |
| YIWUSHI CHONGGUAN DIANZISHANGWU YOUXIAN GONGSI | | | product standards | 2023 | UK-OPSS | £0 |
| YIWU YIHONG E-COMMERCE FIRM t/a NCYHTOYS Store | | | product standards | 2022 | UK-OPSS | £0 |
| YIWU MINGRUI MUSICAL INSTRUMENT CO., LTD t/a M MBAT Official Store | | | product standards | 2022 | UK-OPSS | £0 |
| YIWU MINGRUI MUSICAL INSTRUMENT CO., LTD t/a M MBAT Official Store | | | product standards | 2022 | UK-OPSS | £0 |
| YIWU HEFU E-COMMERCE CO., LTD t/a Happiness Life Store | | | product standards | 2022 | UK-OPSS | £0 |
| YHB Contracts Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| YG Construction Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| YG Construction Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Yewlands Day Nursery | | | care quality violation | 2021 | UK-OFSTED | £0 |
| Yeshivah Ohr Torah School | | | care quality violation | 2018 | UK-OFSTED | £0 |
| Yeshiva Lezeirim Preparatory Academy | | | care quality violation | 2017 | UK-OFSTED | £0 |
| Yes Marble Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yes Granite Products Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yes Granite Products Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yeovil Hospital NHS Foundation Trust | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Yeovil Gear Services Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Yeo Valley Primary School | | | care quality violation | 2018 | UK-OFSTED | £0 |
| Yeo and Smith Engineers | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yelverton Farms | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yelverton Farms | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yelverton Farms | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yellow Wellies | | | care quality violation | 2022 | UK-OFSTED | £0 |
| Yellow Tree workforce development Limited | | | care quality violation | 2023 | UK-OFSTED | £0 |
| Yelcon Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Yelcon Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Yearnhome Improvements Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Yearnhome Improvements Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Yearnhome Improvements Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Yearn Fabrications Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Yearn Fabrications Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Yealm Kitchens Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yealm Kitchens Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yealm Kitchens Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| YCT Limited | | | workplace safety or health violation | 2015 | UK-HSE | £176,269 |
| YBLNTEK EU | | | product standards | 2021 | UK-OPSS | £0 |
| Yawmax Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Yawmax Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Yawmax Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Yawmax Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Yawmax Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Yawmax Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Yates Engineering Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Yates Engineering Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Yates Design & Build Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Yates Design & Build Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Yas Building Contractors Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Yarwoods SPV Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Yarrowside Ltd | | | care quality violation | 2020 | UK-LGSCO | £500 |
| Yarrows Aggregates Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Yarrows Aggregates Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Yarnton Preschool | | | care quality violation | 2022 | UK-OFSTED | £0 |
| Yardmaster International | | | workplace safety or health violation | 2016 | UK-HSENI | £0 |
| Yardmaster International | | | workplace safety or health violation | 2016 | UK-HSENI | £0 |
| Yardbury Engineering & Oilfield Products Limited | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Yardbury Engineering & Oilfield Products Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Yarcombe Woodland Products Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| YANGZHOU BAISHUANG TRADING CO., LTD t/a Bananas Toy Store | | | product standards | 2022 | UK-OPSS | £0 |
| Yang Yang UK Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yang Yang UK Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Yanam Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Yamatron Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Yamatron Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Yacht Designs Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Yacht Designs Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Yacht Designs Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| YA Building Contractors Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| YA Building Contractors Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| YA Building Contractors Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Y. Clayton Building Contractors Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Xylem Water Solutions UK Ltd | Xylem | miscellaneous services | workplace safety or health violation | 2019 | UK-HSE | £0 |
| Xyfil Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| XWR LIMITED | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| XWR LIMITED | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| XWR LIMITED | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| XWR LIMITED | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| XWR LIMITED | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| XWR LIMITED | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| XWR LIMITED | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| XUM Enterprise Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Xtrend Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Xtrend Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
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