| C D Hood Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| C Donnelly Construction Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| C Dooley Contractors Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| C E L Leadwork Contracts Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C E P Ceilings Limited | | | workplace safety or health violation | 2013 | UK-HSE | £25,194 |
| C E Turner (Engineers) Ltd | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| C F Booth (Engineering) Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £53,077 |
| C F Electronics Ltd | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| C F Electronics Ltd | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| C F Paske and Son | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| C F Paske and Son | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| C Facilities Support Limited | | | workplace safety or health violation | 2019 | UK-HSE | £11,141 |
| C Faulkner & Sons | | | workplace safety or health violation | 2018 | UK-HSENI | £0 |
| C Faulkner & Sons | | | workplace safety or health violation | 2018 | UK-HSENI | £0 |
| C Faulkner & Sons | | | workplace safety or health violation | 2018 | UK-HSENI | £0 |
| C Ferguson Roofing Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| C Fraser Engineering Ltd | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| C Grant (Roofing and Guttering) Limited | | | workplace safety or health violation | 2012 | UK-HSE | £5,615 |
| C H Cole & Sons (Mill House) | | | workplace safety or health violation | 2017 | UK-HSE | £30,600 |
| C H Products (Midlands) Limited | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| C J Coatings Ltd | | | workplace safety or health violation | 2011 | UK-HSE | £7,500 |
| C J Cox Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| C J Deighton & Co Limited | | | workplace safety or health violation | 2012 | UK-HSE | £18,122 |
| C J Enviro Design Atelier Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C J Gowing & Sons Ltd | | | workplace safety or health violation | 2010 | UK-HSE | £49,670 |
| C J Hobin Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| C J Hobin Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| C J Hobin Limited | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| C J Langs Limited | | | workplace safety or health violation | 2017 | UK-HSE | £166,000 |
| C J Powder Coatings Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| C J Powder Coatings Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| C J Powder Coatings Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| C J Powder Coatings Limited | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| C J Powder Coatings Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C J Powder Coatings Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C J Tools / Southern CNC Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| C J Tools / Southern CNC Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| C J Tools / Southern CNC Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| C J Wildbird Foods Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £55,509 |
| C Jackson & Sons Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C K Batchelor Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C K Batchelor Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C K Batchelor Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C K G Homes Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| C K Hand Car Wash Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C K Hand Car Wash Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C K Hand Car Wash Ltd | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C L A Fabrications Ltd | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| C L A Fabrications Ltd | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| C L A Fabrications Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| C L A Fabrications Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| C L C Contractors Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £405,504 |
| C L C Resources Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| C L James Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| C L James Limited | | | workplace safety or health violation | 2023 | UK-HSE | £0 |
| C M E Ceilings Ltd | | | workplace safety or health violation | 2011 | UK-HSE | £10,000 |
| C M F Limited | | | workplace safety or health violation | 2013 | UK-HSE | £205,606 |
| C M Jordan Building (NE) Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| C M Jordan Building (NE) Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| C M PRO CONSTRUCT LTD | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| C M R Demolitions Limited | | | workplace safety or health violation | 2011 | UK-HSE | £16,017 |
| C M Skips | | | workplace safety or health violation | 2018 | UK-HSENI | £0 |
| C M Whitby Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| C M Whitby Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| C M Whitby Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| C Millar & Son Fabrications Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| C Millar & Son Fabrications Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| C N C Speedwell Limited | | | workplace safety or health violation | 2018 | UK-HSE | £130,909 |
| C P Cases Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C P Environmental Ltd | | | workplace safety or health violation | 2016 | UK-HSE | £61,500 |
| C P L Precision Engineering Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| C P L Precision Engineering Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| C P Pharmaceuticals Ltd | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| C Patrick Evans Entertainments Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C Patrick Evans Entertainments Limited | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| C Patrick Evans Entertainments Limited | | | workplace safety or health violation | 2012 | UK-HSE | £9,795 |
| C Porteous Joinery | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| C R Atkinson & Sons Limited | | | workplace safety or health violation | 2016 | UK-HSE | £0 |
| C R Building & Roofing | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| C R Civil Engineering Limited | | | workplace safety or health violation | 2014 | UK-HSE | £42,047 |
| C R Construction (SW) Ltd | | | workplace safety or health violation | 2011 | UK-HSE | £4,014 |
| C R F (UK) Limited | | | workplace safety or health violation | 2011 | UK-HSE | £20,872 |
| C R Long Ltd | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
| C R Services (Corby) Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| C R Services (Corby) Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| C R Services (Corby) Ltd | | | workplace safety or health violation | 2021 | UK-HSE | £0 |
| C R Smith Manufacturing Limited | | | workplace safety or health violation | 2015 | UK-HSE | £12,500 |
| C Root Design & Build Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C Root Design & Build Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C Root Design & Build Limited | | | workplace safety or health violation | 2017 | UK-HSE | £0 |
| C S (Northern) Limtied | | | workplace safety or health violation | 2019 | UK-HSE | £0 |
| C S Drilling Services Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| C S Drilling Services Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| C S Drilling Services Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| C S Drilling Services Limited | | | workplace safety or health violation | 2020 | UK-HSE | £0 |
| C S Drilling Services Limited | | | workplace safety or health violation | 2012 | UK-HSE | £6,600 |
| C S Engineering (Exeter) Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| C S Engineering (Exeter) Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| C S Engineering (Exeter) Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| C S Engineering (Exeter) Ltd | | | workplace safety or health violation | 2018 | UK-HSE | £0 |
| C S Godney Limited | | | workplace safety or health violation | 2022 | UK-HSE | £0 |
