| British Ceramic Tile Ltd (In Administration) | | | climate change regime violation | 2021 | UK-EA | £352,722 |
| Ensus UK Limited | | | climate change regime violation | 2021 | UK-EA | £126,787 |
| Flybe Limited | Flybe Limited | airlines | climate change regime violation | 2020 | UK-EA | £51,885,049 |
| Monarch Airlines Limited | Monarch Airlines Limited | airlines | climate change regime violation | 2020 | UK-EA | £48,154,044 |
| Thomas Cook Airlines Limited | | | climate change regime violation | 2020 | UK-EA | £32,137,926 |
| PUPL Realisation Ltd | | | climate change regime violation | 2017 | UK-EA | £460,895 |
| Secanim Ltd | | | climate change regime violation | 2017 | UK-EA | £55,022 |
| ConocoPhillips Petroleum Co UK Ltd | Harbour Energy PLC | oil and gas | climate change regime violation | 2017 | UK-EA | £27,664 |
| Aggregate Industries UK Limited | Holcim Group | building materials | climate change regime violation | 2017 | UK-EA | £19,242 |
| P3P Energy Management Ltd | | | climate change regime violation | 2016 | UK-EA | £66,584 |
| Hanson Quarry Products Europe Ltd | HeidelbergCement | building materials | climate change regime violation | 2016 | UK-EA | £26,589 |
| Cargill PLC | Cargill | agribusiness | climate change regime violation | 2016 | UK-EA | £8,188 |
| Sarval Limited | | | climate change regime violation | 2015 | UK-EA | £157,857 |
| RWG (Repair and Overhauls) Limited | | | climate change regime violation | 2018 | UK-SEPA | £55,106 |
| Shell (UK) Limited | Shell PLC | oil and gas | climate change regime violation | 2018 | UK-SEPA | £40,056 |
| ENGIE FM Limited | Bouygues | construction and engineering | climate change regime violation | 2018 | UK-SEPA | £35,224 |
| Shell (UK) Limited | Shell PLC | oil and gas | climate change regime violation | 2022 | UK-SEPA | £3,750 |
| Shell (UK) Limited | Shell PLC | oil and gas | climate change regime violation | 2022 | UK-SEPA | £4,906 |
| Pelagia UK Limited | | | climate change regime violation | 2021 | UK-SEPA | £133,098 |
| Diageo Scotland Limited | Diageo | beverages | climate change regime violation | 2022 | UK-SEPA | £507,624 |
| Diageo Scotland Limited | Diageo | beverages | climate change regime violation | 2022 | UK-SEPA | £358,611 |
| Diageo Scotland Limited | Diageo | beverages | climate change regime violation | 2022 | UK-SEPA | £346,153 |
| Tranquillity BF7 LLP | | | commercial fishing violation | 2020 | UK-MMO | £13,220 |
| Ocean Venture II Fishing Ltd. | | | commercial fishing violation | 2019 | UK-MMO | £2,054 |
| Buchan (E104) Limited | | | commercial fishing violation | 2019 | UK-MMO | £68,625 |
| R & E Fishing Limited (Ireland) | | | commercial fishing violation | 2018 | UK-MMO | £36,586 |
| Sagittarius Fishing Company | | | commercial fishing violation | 2018 | UK-MMO | £28,104 |
| E&J Shellfish Limited | | | commercial fishing violation | 2018 | UK-MMO | £65,010 |
| Wilhelmina Beheer B.V. | | | commercial fishing violation | 2018 | UK-MMO | £20,170 |
| Macduff Shellfish (Scotland) Ltd | | | commercial fishing violation | 2017 | UK-MMO | £27,434 |
| Irina NV | | | commercial fishing violation | 2017 | UK-MMO | £36,235 |
| Midland Fish Company Ltd | | | commercial fishing violation | 2017 | UK-MMO | £4,867 |
| Dockside Ltd | | | commercial fishing violation | 2017 | UK-MMO | £4,715 |
| JJR Fishing Limited | | | commercial fishing violation | 2017 | UK-MMO | £19,620 |
| Kafish B.V. | | | commercial fishing violation | 2017 | UK-MMO | £149,670 |
| Macduff Fishing Fleet Limited | | | commercial fishing violation | 2017 | UK-MMO | £22,936 |
| S & P Trawlers (JACABEN) Limited | | | commercial fishing violation | 2017 | UK-MMO | £4,545 |
| Macduff Fishing Fleet Limited | | | commercial fishing violation | 2016 | UK-MMO | £20,096 |
| John Ward Agency (Fleetwood) Limited | | | commercial fishing violation | 2016 | UK-MMO | £2,365 |
| Adriaantje Holdings BV | | | commercial fishing violation | 2015 | UK-MMO | £42,821 |
| West Coast Sea Products Ltd | | | commercial fishing violation | 2015 | UK-MMO | £14,142 |
| Diepzee Visserij Maatschappij Cornelis Vrolijk II BV | | | commercial fishing violation | 2015 | UK-MMO | £43,120 |
| Atlas Fishing LLP | | | commercial fishing violation | 2014 | UK-MMO | £10,735 |
| Trust Trawlers | | | commercial fishing violation | 2014 | UK-MMO | £4,100 |
| Felir SAS | | | commercial fishing violation | 2023 | UK-MMO | £14,380 |
| Guiding Light Ltd | | | commercial fishing violation | 2023 | UK-MMO | £56,103 |
| Livingstone Fishing LLP | | | commercial fishing violation | 2023 | UK-MMO | £30,323 |
| Vistgate Ltd | | | commercial fishing violation | 2023 | UK-MMO | £6,452 |
| Westminster Dredging Company Limited | | | dredging violation | 2015 | UK-MMO | £43,654 |
| 2 Sisters Food Group Ltd | Boparan Holdings Limited | food products | Environmental Violation | 2017 | UK-NRW | £0 |
| Adgefore Limited | | | Environmental Violation | 2017 | UK-NRW | £34,405 |
| Banana Logistics Ltd | | | Environmental Violation | 2017 | UK-NRW | £0 |
| Cardiff & Vale University Health Board | | | Environmental Violation | 2017 | UK-NRW | £0 |
| Display Recycling Limited | | | Environmental Violation | 2017 | UK-NRW | £0 |
| E J Metals Recycling Limited | | | Environmental Violation | 2017 | UK-NRW | £4,000 |
| Euro Garages Ltd | EG Group | retailing | Environmental Violation | 2017 | UK-NRW | £65,044 |
| Euro-Worldwide Trading Limited | | | Environmental Violation | 2017 | UK-NRW | £0 |
| Hanson Quarry Products (Europe) Limited | HeidelbergCement | building materials | Environmental Violation | 2017 | UK-NRW | £0 |
| Hydropol Project & Management a.s. | | | Environmental Violation | 2017 | UK-NRW | £26,860 |
| Mountain Trailers Limited | | | Environmental Violation | 2017 | UK-NRW | £0 |
| Mountain View Ranch Ltd | | | Environmental Violation | 2017 | UK-NRW | £0 |
| Parc yr Abbot Farm Ltd | | | Environmental Violation | 2017 | UK-NRW | £8,125 |
| Queensferry Car Breakers Limited, c/o Mechan Accountants | | | Environmental Violation | 2017 | UK-NRW | £0 |
| Siteserv Recycling (SW) Limited | | | Environmental Violation | 2017 | UK-NRW | £0 |
| Siteserv Recycling (SW) Ltd | | | Environmental Violation | 2017 | UK-NRW | £5,040 |
| SL Recycling Ltd | | | Environmental Violation | 2017 | UK-NRW | £0 |
| Solway Foods Ltd | Boparan Holdings Limited | food products | Environmental Violation | 2017 | UK-NRW | £0 |
| Sunmagic Juices Ltd | | | Environmental Violation | 2017 | UK-NRW | £0 |
| Tarmac Trading Ltd | CRH PLC | building materials | Environmental Violation | 2017 | UK-NRW | £0 |
| Ynysmeudwy AFC | | | Environmental Violation | 2017 | UK-NRW | £0 |
| Zest Recruitment Staffing Solutions Ltd | | | Environmental Violation | 2017 | UK-NRW | £0 |
| Canal River Trust | | | Environmental Violation | 2018 | UK-NRW | £0 |
| CB & PSM Davies | | | Environmental Violation | 2018 | UK-NRW | £0 |
| City Skips (NW) Limited | | | Environmental Violation | 2018 | UK-NRW | £0 |
| Clywd Breakers Limited | | | Environmental Violation | 2018 | UK-NRW | £0 |
| Halo Foods Limited | | | Environmental Violation | 2018 | UK-NRW | £0 |
| Hydro Schemes UK Limited | | | Environmental Violation | 2018 | UK-NRW | £0 |
| Knolton Farmhouse Cheese Limited | | | Environmental Violation | 2018 | UK-NRW | £1,403 |
| Langdon Mill Farms Ltd | | | Environmental Violation | 2018 | UK-NRW | £11,825 |
| Pilkington Asbestos Removal Services Ltd | | | Environmental Violation | 2018 | UK-NRW | £0 |
| Queensferry Car Breakers Limited, c/o Mechan Accountants | | | Environmental Violation | 2018 | UK-NRW | £0 |
| RR Davies Ltd | | | Environmental Violation | 2018 | UK-NRW | £0 |
| South Wales Wood Recycling Limited | | | Environmental Violation | 2018 | UK-NRW | £0 |
| Tata Steel UK Ltd | Tata Group | diversified | Environmental Violation | 2018 | UK-NRW | £0 |
| TJ's Skip Hire Ltd | | | Environmental Violation | 2018 | UK-NRW | £0 |
| Abingdon Flooring Limited | | | Environmental Violation | 2019 | UK-NRW | £43,957 |
| City Skips (NW) Limited | | | Environmental Violation | 2019 | UK-NRW | £0 |
| Clwyd Spares and Repairs Ltd | | | Environmental Violation | 2019 | UK-NRW | £5,300 |
| ComBigaS Denmark | | | Environmental Violation | 2019 | UK-NRW | £0 |
| Dwr Cymru Cyfyngedig | Dwr Cymru Cyfyngedig (Welsh Water) | utilities and power generation | Environmental Violation | 2019 | UK-NRW | £0 |
| Dwr Cymru Cyfyngedig | Dwr Cymru Cyfyngedig (Welsh Water) | utilities and power generation | Environmental Violation | 2019 | UK-NRW | £0 |
| Gethin Davies & Son | | | Environmental Violation | 2019 | UK-NRW | £0 |
| J M & L R Reynolds | | | Environmental Violation | 2019 | UK-NRW | £0 |
| Leekes Limited | | | Environmental Violation | 2019 | UK-NRW | £0 |
| Maes Elwy Hydro Limited | | | Environmental Violation | 2019 | UK-NRW | £0 |
| Mason & Reynolds Holdings Ltd | | | Environmental Violation | 2019 | UK-NRW | £0 |
| NAG Recycling Ltd | | | Environmental Violation | 2019 | UK-NRW | £0 |
| Rees Metals | | | Environmental Violation | 2019 | UK-NRW | £0 |
| Stonewest Construction Limited | | | Environmental Violation | 2019 | UK-NRW | £0 |
| World Care (Wales) Limited | | | Environmental Violation | 2019 | UK-NRW | £0 |
| Alun Griffiths (Contractors) Limited | | | Environmental Violation | 2020 | UK-NRW | £0 |
