| WillIam Medcalf Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| William Lee Ltd | Castings PLC | miscellaneous manufacturing | workplace safety or health violation | 2018 | UK-HSE | £66,000 |
| William Lee Ltd | Castings PLC | miscellaneous manufacturing | workplace safety or health violation | 2016 | UK-HSE | £118,093 |
| William Lane Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| William Lane Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| William Lane Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| William Kent (Memorials) Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| William Kennedy Property Maintenance | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| William Kennedy Plumbers Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| William Grant & Sons Distillers Limited | William Grant & Sons Ltd. | beverages | workplace safety or health violation | 2023 | UK-HSE | £0 |
| William Grant & Sons Distillers Limited | William Grant & Sons Ltd. | beverages | workplace safety or health violation | 2021 | UK-HSE | £0 |
| William Grant & Sons Distillers Limited | William Grant & Sons Ltd. | beverages | workplace safety or health violation | 2019 | UK-HSE | £0 |
| William Grant & Sons Distillers Limited | William Grant & Sons Ltd. | beverages | workplace safety or health violation | 2019 | UK-HSE | £0 |
| William Grant & Sons Distillers Limited | William Grant & Sons Ltd. | beverages | workplace safety or health violation | 2021 | UK-HSE | £0 |
| William Grant & Sons Distillers Limited | William Grant & Sons Ltd. | beverages | workplace safety or health violation | 2021 | UK-HSE | £0 |
| William Grant & Sons Distillers Limited | William Grant & Sons Ltd. | beverages | workplace safety or health violation | 2021 | UK-HSE | £0 |
| William George Sand & Gravel Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| William George Sand & Gravel Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| William Fulton Building Services Limited | | | workplace safety or health violation | 2011 | UK-HSE | £8,000 |
| William Fry Fabrications Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| William Fry Fabrications Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| William Fry Fabrications Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| William Fry Fabrications Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| William Fry Fabrications Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| William Fry Fabrications Ltd | | | workplace safety or health violation | 2012 | UK-HSE | £15,861 |
| William Davis Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| William Cook Stanhope Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| William Cook Stanhope Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| William Cook Rail Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| William Cook Master Patterns Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| William Construction NW Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| William Construction Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| William Construction Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| WILLIAM CLARK & SONS, LIMITED | | | workplace safety or health violation | 2018 | UK-HSENI | £0 |
| WILLIAM CLARK & SONS, LIMITED | | | workplace safety or health violation | 2018 | UK-HSENI | £0 |
| WILLIAM CLARK & SONS, LIMITED | | | workplace safety or health violation | 2018 | UK-HSENI | £0 |
| William Abbott Developments Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| William Abbott Developments Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| William A Welsh Engineering | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| William A Welsh Engineering | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| William A Welsh Engineering | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Willett Homemaker Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Willett Homemaker Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Willett Homemaker Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Willes Farming Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Willes Farming Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Willes Farming Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Willes Farming Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Willerby Wold Piggeries Limited | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Willerby Holiday Homes Ltd | | | workplace safety or health violation | 2013 | UK-HSE | £28,056 |
| Wilks (Rubber Plastics) Mfgs. Co. Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Wilks (Rubber Plastics) Mfgs. Co. Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Wilkpol Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Wilkinson Skips Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Wilkinson Sandbach LLP | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Wilkinson Properties (Boston) Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Wilkinson Landscapes Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Wilkinson Joinery Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Wilkinson Joinery Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Wilkinson Joinery Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Wilkinson Dynamic Balancing Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| Wilkinson Dynamic Balancing Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| Wilkin Dennys Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilkin Dennys Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilkie Engineering Limited | | | workplace safety or health violation | 2024 | UK-HSE | £0 |
| Wilkie Developments Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Wilkes & Sons Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| Wilker UK Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Wilf Noble Construction & Plant Hire Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| Wildwood Group Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Wildmoor Quarry Products Limited | | | workplace safety or health violation | 2016 | UK-HSE | £41,174 |
| Wildmoor Construction Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Wildmoor Construction Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Wildlife and Birdcare Nature Recovery Project CIC | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Wildjacks Property Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Wildheart Residential Management Limited | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Wildgoose Construction Limited | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| Wildflour Bakeries Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Wildflour Bakeries Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| Wildes Education | | | childcare and educational services violation | 2023 | UK-OFSTED | £0 |
| Wildercreative Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Wildercreative Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| Wilden Services Limited | | | workplace safety or health violation | 2012 | UK-HSE | £22,148 |
| Wilden Developments Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| WildAx Conversions Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| Wild Foods Of Scotland Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
