| 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 |
| 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 |
| 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 |
| Esso Petroleum Company Limited | Exxon Mobil | oil and gas | workplace safety or health violation | 2021 | UK-HSE | £534,103 |
| Balfour Beatty Regional Construction Limited | Balfour Beatty | construction and engineering | workplace safety or health violation | 2012 | UK-HSE | £532,365 |
| 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 |
| 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 |
| 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 | Saint-Gobain | building materials | 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 |
| Bakkavor Foods Limited | Bakkavor Group | food products | workplace safety or health violation | 2015 | UK-HSE | £509,202 |
| PD Teesport Limited | | | workplace safety or health violation | 2012 | UK-HSE | £507,684 |
| Barroerock Construction Limited | | | workplace safety or health violation | 2013 | UK-HSE | £507,437 |
| Encirc Limited | | | workplace safety or health violation | 2015 | UK-HSE | £507,290 |
| Fresenius Kabi Ltd | Fresenius SE & Co. | healthcare services | drug or medical equipment safety violation | 2015 | UK-MHRA | £505,900 |
| United Grab Hire Limited | | | workplace safety or health violation | 2016 | UK-HSE | £500,909 |
| Sterecycle (Rotherham) Ltd | | | workplace safety or health violation | 2011 | UK-HSE | £500,000 |
| Lifeways Community Care Limited | | | care quality violation | 2021 | UK-CQC | £495,170 |
| Serco Limited | Serco Group | miscellaneous services | railroad safety violation | 2010 | UK-ORR | £493,773 |
| Robert McBride Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £493,441 |
| P D R Construction Limited | | | workplace safety or health violation | 2014 | UK-HSE | £491,328 |
| Midland Steel Reinforcement Supplies (UK) Limited | | | workplace safety or health violation | 2022 | UK-HSE | £491,239 |
| Tata Steel UK Limited | Tata Group | diversified | workplace safety or health violation | 2014 | UK-HSE | £482,100 |
| Dimension Data Advanced Infrastructure | | | workplace safety or health violation | 2014 | UK-HSE | £478,209 |
| Sellafield Ltd | Sellafield Limited | miscellaneous services | nuclear safety violation | 2019 | UK-ONR | £476,753 |
| Hertfordshire Partnership NHS Foundation Trust | | | workplace safety or health violation | 2012 | UK-HSE | £476,346 |
| Cheshire Mouldings & Woodturnings Limited | | | workplace safety or health violation | 2016 | UK-HSE | £474,142 |
| Schindler Limited | Schindler | miscellaneous manufacturing | workplace safety or health violation | 2012 | UK-HSE | £469,970 |
| Dunbia (UK) | Dawn Meats | food products | workplace safety or health violation | 2022 | UK-HSE | £467,186 |
| Caring Homes Group | | | workplace safety or health violation | 2013 | UK-HSE | £464,762 |
| Shrewsbury and Telford Hospital NHS Trust | | | workplace safety or health violation | 2011 | UK-HSE | £463,333 |
| Ozdil Investments Limited | | | workplace safety or health violation | 2015 | UK-HSE | £463,234 |
| Veolia UK Limited | Veolia Group | waste management and environmental services | workplace safety or health violation | 2013 | UK-HSE | £461,676 |
| LSDM Limited | Grafton Group PLC | wholesalers | workplace safety or health violation | 2016 | UK-HSE | £451,038 |
| The Richmond Fellowship Scotland | | | workplace safety or health violation | 2022 | UK-HSE | £450,000 |
| Roxel (UK Rocket Motors) Limited | | | workplace safety or health violation | 2012 | UK-HSE | £446,000 |
| Solvay Solutions UK Limited | Solvay | chemicals | workplace safety or health violation | 2016 | UK-HSE | £443,006 |
| Anglian Water Services Limited | Anglian Water Group Limited | utilities and power generation | workplace safety or health violation | 2013 | UK-HSE | £441,712 |
| Hillgreen Care Limited | | | care quality violation | 2018 | UK-CQC | £441,000 |
| Nordam Europe Limited | | | workplace safety or health violation | 2018 | UK-HSE | £439,621 |
| Genie UK Limited | | | workplace safety or health violation | 2022 | UK-HSE | £435,175 |
| Northumbria University Newcastle | | | workplace safety or health violation | 2015 | UK-HSE | £426,468 |
| Adis Scaffolding Limited | | | workplace safety or health violation | 2013 | UK-HSE | £424,468 |
| Arnold Laver & Company Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £419,841 |
| McCalls Special Products Limited | | | workplace safety or health violation | 2013 | UK-HSE | £416,805 |
| Cardiff and Vale University Health Board | | | workplace safety or health violation | 2016 | UK-HSE | £415,846 |
| Prax Lindsey Oil Refinery Limited | Prax Group | oil and gas | workplace safety or health violation | 2015 | UK-HSE | £415,795 |
| BUPA Care Homes (CFCHomes) Limited | Bupa | healthcare services | workplace safety or health violation | 2013 | UK-HSE | £415,204 |
| Mitchellson Formwork & Civil Engineering Limited | | | workplace safety or health violation | 2012 | UK-HSE | £414,936 |
| Sankey Laminations Limited | | | workplace safety or health violation | 2014 | UK-HSE | £414,429 |
| The Angle Ring Company Limited | | | workplace safety or health violation | 2014 | UK-HSE | £414,001 |
| Viridor Waste Management Limited | KKR & Co. | private equity (including portfolio companies) | workplace safety or health violation | 2017 | UK-HSE | £413,107 |
| Armstrong World Industries Limited | Armstrong World Industries | building materials | workplace safety or health violation | 2014 | UK-HSE | £413,083 |
| Saint-Gobain Construction Products UK Limited | Saint-Gobain | building materials | workplace safety or health violation | 2017 | UK-HSE | £412,946 |
| J C Bamford Excavators Limited | | | workplace safety or health violation | 2013 | UK-HSE | £412,235 |
| Devereux Developments Limited | | | workplace safety or health violation | 2022 | UK-HSE | £412,053 |
| Ardmore Construction Limited | | | workplace safety or health violation | 2014 | UK-HSE | £411,834 |
| Hanson Quarry Products Europe Limited | HeidelbergCement | building materials | workplace safety or health violation | 2016 | UK-HSE | £411,376 |
| Lanes Group PLC | | | workplace safety or health violation | 2019 | UK-ORR | £409,896 |
| Diamond Box Limited | | | workplace safety or health violation | 2014 | UK-HSE | £409,886 |
| DHL Parcel UK Limited | Deutsche Post | freight and logistics | workplace safety or health violation | 2013 | UK-HSE | £409,356 |
| Mace Limited | Mace Group | construction and engineering | workplace safety or health violation | 2016 | UK-HSE | £409,095 |
| Gestamp Tallent Limited | | | workplace safety or health violation | 2016 | UK-HSE | £407,758 |
| Cammell Laird Shiprepairers & Shipbuilders Limited | | | workplace safety or health violation | 2015 | UK-HSE | £407,684 |
| Tesla Engineering Limited | | | workplace safety or health violation | 2018 | UK-HSE | £407,547 |
| Stena Line Limited | Stena Sphere | freight and logistics | workplace safety or health violation | 2017 | UK-HSE | £406,576 |
| Reliable Shipping Limited | | | workplace safety or health violation | 2022 | UK-HSE | £406,336 |
| C L C Contractors Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £405,504 |
| CLC Contractors Limited | | | workplace safety or health violation | 2021 | UK-HSE | £405,300 |
| Tooles Transport Limited | | | workplace safety or health violation | 2013 | UK-HSE | £403,728 |
| Fruehauf Limited | | | workplace safety or health violation | 2022 | UK-HSE | £403,472 |
| Country Park Foods Limited | | | workplace safety or health violation | 2017 | UK-HSE | £403,468 |
| Bupa Care Homes (CFHCare) Limited | Bupa | healthcare services | workplace safety or health violation | 2023 | UK-HSE | £403,275 |
| NPS London Limited | | | workplace safety or health violation | 2012 | UK-HSE | £402,365 |
| Kier Construction Limited | Kier Group PLC | construction and engineering | workplace safety or health violation | 2015 | UK-HSE | £401,534 |
| Koseoglu Metal Work Limited | | | workplace safety or health violation | 2015 | UK-HSE | £401,236 |
| Building & Dismantling Contractors Ltd | | | workplace safety or health violation | 2014 | UK-HSE | £400,000 |
| BP Exploration Operating Company Limited | BP | oil and gas | workplace safety or health violation | 2012 | UK-HSE | £400,000 |
| Babcock Rail Limited | Babcock International Group PLC | aerospace and military contracting | workplace safety or health violation | 2016 | UK-ORR | £400,000 |
| Ineos Chemicals Grangemouth Limited | Ineos | chemicals | workplace safety or health violation | 2021 | UK-HSE | £400,000 |
| Apache Beryl Limited | | | workplace safety or health violation | 2021 | UK-HSE | £400,000 |
| Stagecoach Devon Limited | Stagecoach Group PLC | miscellaneous services | workplace safety or health violation | 2022 | UK-HSE | £398,000 |
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