| London General Transport Services Limited | Kinetic Group | miscellaneous services | workplace safety or health violation | 2011 | UK-HSE | £678,532 |
| Countrystyle Recycling Limited | Countrystyle Recycling Ltd. | waste management and environmental services | workplace safety or health violation | 2015 | UK-HSE | £675,124 |
| Associated British Ports | | | workplace safety or health violation | 2016 | UK-HSE | £674,688 |
| CPM Group Limited | Marshalls PLC | building materials | workplace safety or health violation | 2016 | UK-HSE | £674,564 |
| Safran Seats GB Limited | Safran | aerospace and military contracting | workplace safety or health violation | 2023 | UK-HSE | £673,472 |
| AWE Plc | | | nuclear safety violation | 2020 | UK-ONR | £669,945 |
| Nestle UK Ltd | Nestle | food products | workplace safety or health violation | 2016 | UK-HSE | £666,234 |
| John Henry & Sons (Civil Engineers) Ltd | | | workplace safety or health violation | 2014 | UK-HSE | £666,218 |
| Wates Construction Limited | Wates Group Limited | construction and engineering | workplace safety or health violation | 2014 | UK-HSE | £660,863 |
| Ozdil Investments | | | workplace safety or health violation | 2017 | UK-CPS | £660,000 |
| British Telecommunications Public Limited Company | BT | telecommunications | workplace safety or health violation | 2010 | UK-HSE | £660,000 |
| Inco Contracts Limited | | | workplace safety or health violation | 2023 | UK-HSE | £658,448 |
| ASM Metal Recycling Ltd | | | workplace safety or health violation | 2024 | UK-HSE | £655,885 |
| Savanna Rags International Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £653,300 |
| Grundon Waste Management Limited | | | workplace safety or health violation | 2021 | UK-HSE | £649,874 |
| Graham Engineering Ltd. | | | workplace safety or health violation | 2022 | UK-HSE | £645,487 |
| Howard Civil Engineering Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £642,952 |
| HC-One Limited | HC-One Limited | healthcare services | workplace safety or health violation | 2022 | UK-HSE | £640,000 |
| Kepak Group Limited fka 2 Sisters Red Meat Limited | | | workplace safety or health violation | 2021 | UK-HSE | £638,183 |
| S&S Quality Building Contractors Limited | | | workplace safety or health violation | 2022 | UK-HSE | £636,894 |
| VolkerRail Ltd. | | | workplace safety or health violation | 2022 | UK-ORR | £635,415 |
| Amec Foster Wheeler Group Limited | Wood Group | oilfield services and supplies | workplace safety or health violation | 2012 | UK-HSE | £633,868 |
| T.E.Scudder Limited | | | workplace safety or health violation | 2011 | UK-HSE | £627,409 |
| Kier Infrastructure | Kier Group PLC | construction and engineering | workplace safety or health violation | 2018 | UK-ORR | £625,767 |
| SIG Trading Limited | SIG PLC | wholesalers | workplace safety or health violation | 2016 | UK-HSE | £623,594 |
| Restore Datashred Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £622,860 |
| Kelkay Limited | | | workplace safety or health violation | 2023 | UK-HSE | £620,848 |
| Cargill PLC | Cargill | agribusiness | workplace safety or health violation | 2012 | UK-HSE | £620,095 |
| Tronox Pigment UK Limited | Tronox | chemicals | workplace safety or health violation | 2011 | UK-HSE | £618,934 |
| Amey LG Limited | Amey Limited | miscellaneous energy products and systems | workplace safety or health violation | 2015 | UK-HSE | £615,498 |
| Amey Community Limited | Amey Limited | miscellaneous energy products and systems | workplace safety or health violation | 2024 | UK-HSE | £615,186 |
| St James Group Limited | Berkeley Group PLC | real estate | workplace safety or health violation | 2012 | UK-HSE | £614,936 |
| TM Telford Dairy Limited | Muller Group | food products | workplace safety or health violation | 2016 | UK-HSE | £614,379 |
| Places For People Homes Limited | Places for People | miscellaneous services | workplace safety or health violation | 2014 | UK-HSE | £613,995 |
| Britcon (UK) Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £610,054 |
| Delphi Technologies Limited | BorgWarner | automotive parts | workplace safety or health violation | 2017 | UK-HSE | £609,374 |
| Princess Yacht Limited | | | workplace safety or health violation | 2023 | UK-HSE | £609,146 |
| Forfarmers UK Limited | | | workplace safety or health violation | 2022 | UK-HSE | £607,148 |
| Martin McColl Limited | | | workplace safety or health violation | 2016 | UK-HSE | £605,761 |
| BAM Nuttall Limited | Royal BAM Group | construction and engineering | workplace safety or health violation | 2017 | UK-HSE | £605,478 |
| AkzoNobel Packaging Coatings Limited | Akzo Nobel | paints and coatings | workplace safety or health violation | 2023 | UK-HSE | £603,188 |
| Bilston Skips Ltd | | | workplace safety or health violation | 2012 | UK-HSE | £602,500 |
| Redrow Homes Limited | Barratt Redrow | real estate | workplace safety or health violation | 2013 | UK-HSE | £601,242 |
| CAV Aerospace Ltd | | | workplace safety or health violation | 2015 | UK-CPS | £600,000 |
| Bilston Skips Ltd | | | workplace safety or health violation | 2016 | UK-CPS | £600,000 |
| FDS Waste Services Ltd | | | workplace safety or health violation | 2022 | UK-CPS | £600,000 |
| Linbrooke Services Limited | | | workplace safety or health violation | 2023 | UK-ORR | £600,000 |
| Allenbuild Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £600,000 |
| Balfour Beatty Civil Engineering Limited | Balfour Beatty | construction and engineering | workplace safety or health violation | 2016 | UK-HSE | £600,000 |
| Amalgamated Construction Ltd | | | workplace safety or health violation | 2011 | UK-HSE | £600,000 |
| Claxton Engineering Services Limited | | | workplace safety or health violation | 2011 | UK-HSE | £600,000 |
| Amey Rail Limited | Amey Limited | miscellaneous energy products and systems | workplace safety or health violation | 2021 | UK-ORR | £600,000 |
| British Telecommunications Public Limited Company | BT | telecommunications | workplace safety or health violation | 2011 | UK-HSE | £598,914 |
| David Wood Baking Ltd | | | workplace safety or health violation | 2024 | UK-HSE | £585,632 |
| Sherwood Homes Limited | | | workplace safety or health violation | 2015 | UK-HSE | £576,652 |
| Squibb Group Limited | | | workplace safety or health violation | 2012 | UK-HSE | £575,000 |
| Elysium Healthcare (Farndon) Limited | Ramsay Health Care | healthcare services | workplace safety or health violation | 2014 | UK-HSE | £567,500 |
| McGee Group Limited | | | workplace safety or health violation | 2014 | UK-HSE | £566,236 |
| Ramsay Health Care UK Operations Limited | Ramsay Health Care | healthcare services | workplace safety or health violation | 2013 | UK-HSE | £560,055 |
| CalaChem Limited | | | workplace safety or health violation | 2016 | UK-HSE | £560,000 |
| Tata Steel UK Limited | Tata Group | diversified | workplace safety or health violation | 2012 | UK-HSE | £557,487 |
| T.I.P. Europe Limited | | | workplace safety or health violation | 2012 | UK-HSE | £556,950 |
| BMI Healthcare nka Circle Health Group Limited | PureHealth | healthcare services | workplace safety or health violation | 2023 | UK-HSE | £556,895 |
| Cambus Limited | Deutsche Bank | financial services | workplace safety or health violation | 2013 | UK-HSE | £555,401 |
| Monavan Construction Ltd | | | workplace safety or health violation | 2016 | UK-CPS | £550,120 |
| Monavon Construction Limited | | | workplace safety or health violation | 2013 | UK-HSE | £550,000 |
| London Underground Limited | | | workplace safety or health violation | 2016 | UK-ORR | £550,000 |
| Siemens Gamesa Renewable Energy Limited | Siemens Energy | utilities and power generation | workplace safety or health violation | 2017 | UK-HSE | £549,608 |
| EDF | EDF-Electricite de France | utilities and power generation | nuclear safety violation | 2024 | UK-ONR | £548,367 |
| Watkin Jones & Son Limited | | | workplace safety or health violation | 2012 | UK-HSE | £548,000 |
| Swissport GB Limited | Swissport International | business services | workplace safety or health violation | 2014 | UK-HSE | £546,444 |
| Fluor Limited | Fluor | construction and engineering | workplace safety or health violation | 2010 | UK-HSE | £546,048 |
| Fedex UK Limited | FedEx | freight and logistics | workplace safety or health violation | 2017 | UK-HSE | £543,033 |
| Rydon Construction Limited | | | workplace safety or health violation | 2015 | UK-HSE | £540,741 |
| Repsol Sinopec Resources UK Limited | Repsol | oil and gas | workplace safety or health violation | 2023 | UK-HSE | £535,000 |
| Altro Limited | | | workplace safety or health violation | 2015 | UK-HSE | £534,774 |
| Ibstock Brick Limited | Ibstock PLC | building materials | workplace safety or health violation | 2021 | UK-HSE | £534,548 |
| Bio Dynamic (UK) Limited | | | workplace safety or health violation | 2024 | UK-EA | £534,488 |
| Esso Petroleum Company Limited | Exxon Mobil | oil and gas | workplace safety or health violation | 2021 | UK-HSE | £534,103 |
| Amey Rail Limited | Amey Limited | miscellaneous energy products and systems | workplace safety or health violation | 2023 | UK-ORR | £533,000 |
| Balfour Beatty Regional Construction Limited | Balfour Beatty | construction and engineering | workplace safety or health violation | 2012 | UK-HSE | £532,365 |
| MHS Homes | | | workplace safety or health violation | 2024 | UK-HSE | £532,122 |
| M V Kelly Limited | | | workplace safety or health violation | 2015 | UK-HSE | £530,000 |
| G-Tekt Europe Manufacturing Limited | | | workplace safety or health violation | 2018 | UK-HSE | £528,014 |
| Asia Poultry and Meat Limited | | | food safety violation | 2019 | UK-FS | £525,824 |
| HIS Energy Ltd | | | workplace safety or health violation | 2012 | UK-HSE | £524,968 |
| Interfish Limited | | | workplace safety or health violation | 2013 | UK-HSE | £524,805 |
| Abbey Forged Products Limited | | | workplace safety or health violation | 2015 | UK-HSE | £523,756 |
| Network Rail | Network Rail | miscellaneous services | railroad safety violation | 2013 | UK-ORR | £523,421 |
| Vinyl Compounds Limited | | | workplace safety or health violation | 2015 | UK-HSE | £521,778 |
| Le Maitre Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £520,788 |
| Chard Truck Services Ltd | | | workplace safety or health violation | 2010 | UK-HSE | £520,000 |
| UK Power Networks (Operations) Limited | UK Power Networks | utilities and power generation | workplace safety or health violation | 2011 | UK-HSE | £519,352 |
| South West Highways Ltd | | | workplace safety or health violation | 2013 | UK-HSE | £517,924 |
| Walltopia | | | workplace safety or health violation | 2015 | UK-HSE | £517,864 |
| Pirelli Tyres Ltd | Pirelli | automotive parts | workplace safety or health violation | 2013 | UK-HSE | £517,829 |
| Meridian Lightweight Technologies UK Ltd | | | workplace safety or health violation | 2014 | UK-HSE | £516,981 |
| C.Ro Ports London Limited | | | workplace safety or health violation | 2015 | UK-HSE | £514,328 |
| Sanders Plant & Waste Management Limited | | | workplace safety or health violation | 2015 | UK-HSE | £514,042 |
| Saint-Gobain PAM UK Ltd | CVC Capital Partners | private equity (including portfolio companies) | workplace safety or health violation | 2018 | UK-HSE | £509,624 |
| I.C.T.S. (U.K.) Limited | | | workplace safety or health violation | 2015 | UK-HSE | £509,339 |
