| 3 in One Services Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| 3 Rivers Developments Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| 3 Star Scaffolding Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 3 Star Scaffolding Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| 360 Construction | | | workplace safety or health violation | 2020 | UK-HSENI | £0 |
| 360 Property Ltd | | | workplace safety or health violation | 2015 | UK-HSE | £16,668 |
| 3D Creations Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| 3D Eye Limited | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| 3D Joinery Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| 3D Machine Shop Engineering Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 3D Machine Shop Engineering Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 3D Pattern & Mouldmakers Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| 3D Ply Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 3D Ply Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 3D Ply Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 3D Tooling Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| 3D Tooling Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 3D Tooling Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 3D Tooling Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 3D Tooling Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 3DDC Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 3DDC Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 3DDC Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 3DIMENSIONALCRAFTSGB | | | product standards | 2021 | UK-OPSS | £0 |
| 3i Investments | 3i Group PLC | private equity (including portfolio companies) | fire safety violation | 2015 | UK-LFRS | £10,000 |
| 3J Property Investment Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 3J Property Investment Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 3J Property Investment Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 3J Property Investment Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 3MS Construction Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| 3MS Construction Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| 3MS Construction Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 3MS Construction Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 3MS Construction Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| 3MS Construction Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| 3MS Construction Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| 3R Technology UK Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| 3R Technology UK Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| 3R Technology UK Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| 3R Technology UK Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| 3Sixty Waste Management Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| 3Sixty Waste Management Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| 4 Accident Repairs Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 4 Accident Repairs Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 4 Accident Repairs Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 4 Carpenters Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 4 Carpenters Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 4 Carpenters Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 4 Carpenters Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| 4 Carpenters Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| 4 Carpenters Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| 4 Corners Marine Services Ltd | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| 4 Corners Marine Services Ltd | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| 4 Crosses Construction Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 4 Power Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 4 Square Services Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 4 Tech Solutions Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 4-2-11 Activity Camp | | | childcare and educational services violation | 2022 | UK-OFSTED | £0 |
| 4Brothers Properties Limited | | | workplace safety or health violation | 2010 | UK-HSE | £155,000 |
| 4D Darlington Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| 4D Darlington Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| 4D Structures Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| 4EVERLASTINGUSA | | | product standards | 2022 | UK-OPSS | £0 |
| 4FS Building Solutions Ltd | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| 4J'S Building Contractors Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| 4J'S Building Contractors Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| 4K's Kitchens Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| 4K's Kitchens Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| 4K's Kitchens Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 4K's Kitchens Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 4K's Kitchens Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 4M Portable Buildings Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| 4M Portable Buildings Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| 4M Portable Buildings Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| 4M Portable Buildings Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| 4PropertyUK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| 4PropertyUK Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| 5 Axis Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 5 Axis Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 5 Axis Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| 5 Axis Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| 5 Star Builders Limited | | | workplace safety or health violation | 2014 | UK-HSE | £106,352 |
| 5 Star Hand Car Wash | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 5 Star Hand Car Wash | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 5 Star Hand Car Wash & Valeting Centre | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| 5 Steps Community Nursery | | | childcare and educational services violation | 2021 | UK-OFSTED | £0 |
| 5.B Properties Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 5.B Properties Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 5.B Properties Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 5.B Properties Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 5.B Properties Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 5.B Properties Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 5.B Properties Limited | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| 51 Bob International Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| 5103 Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| 5103 Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| 5557 TBR Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 5557 TBR Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 5557 TBR Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| 57 Filmer Road,Private Nursery and Preschool | Eagle Superco Limited | miscellaneous services | childcare and educational services violation | 2019 | UK-OFSTED | £0 |
| 5750 Components Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
