| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2011 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2011 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2011 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2012 | UK-EA | £5,000 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2012 | UK-EA | £17,000 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2012 | UK-EA | £17,000 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2012 | UK-EA | £17,000 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2012 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2012 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2012 | UK-EA | £1,200 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2012 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2012 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2012 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2013 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2013 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2013 | UK-EA | £4,000 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2013 | UK-EA | £4,000 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2013 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2013 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £7,500 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Limited | Kelda Group | utilities and power generation | environmental violation | 2017 | UK-EA | £0 |
| Yorkshire Water Services Limited | Kelda Group | utilities and power generation | environmental violation | 2017 | UK-EA | £45,000 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | water pollution violation | 2021 | UK-EA | £150,000 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2011 | UK-EA | £835 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2011 | UK-EA | £20,000 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2011 | UK-EA | £10,500 |
| YORKSHIRE WATER SERVICES LIMITED | Kelda Group | utilities and power generation | environmental violation | 2011 | UK-EA | £7,500 |
| Yorkshire Water Services Limited | Kelda Group | utilities and power generation | water pollution violation | 2021 | UK-EA | £300,000 |
| Yorkshire Water Services Limited | Kelda Group | utilities and power generation | water pollution violation | 2022 | UK-EA | £150,000 |
| Yorkshire Water Services Limited | Kelda Group | utilities and power generation | water pollution violation | 2022 | UK-EA | £250,000 |
| Yorkshire Water Services Limited | Kelda Group | utilities and power generation | water pollution violation | 2023 | UK-EA | £235,000 |
| Yorkshire Water Services Limited Registered Company | Kelda Group | utilities and power generation | environmental violation | 2016 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2013 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2015 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2015 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2015 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2015 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2015 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | water pollution violation | 2016 | UK-EA | £624,000 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | water pollution violation | 2016 | UK-EA | £613,536 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | water pollution violation | 2016 | UK-EA | £513,536 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2016 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | water pollution violation | 2016 | UK-EA | £380,000 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2016 | UK-EA | £0 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | water pollution violation | 2017 | UK-EA | £600,000 |
| Yorkshire Water Services Ltd | Kelda Group | utilities and power generation | water pollution violation | 2022 | UK-EA | £251,936 |
| Yorkshire Water Services Ltd Registered Company | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| Yorkshire Water Services Ltd. | Kelda Group | utilities and power generation | water pollution violation | 2022 | UK-EA | £1,623,032 |
| Yorkwold Pig Pro Limited Registered Company | | | environmental violation | 2015 | UK-EA | £0 |
| Yorkwold PigPro Registered Company | | | environmental violation | 2015 | UK-EA | £0 |
| Yorshire Water Services Ltd | Kelda Group | utilities and power generation | environmental violation | 2014 | UK-EA | £0 |
| YORWASTE LIMITED | | | environmental violation | 2011 | UK-EA | £0 |
| YORWASTE LIMITED | | | environmental violation | 2011 | UK-EA | £15,000 |
| YORWASTE LIMITED | | | environmental violation | 2011 | UK-EA | £5,000 |
| YORWASTE LIMITED | | | environmental violation | 2013 | UK-EA | £5,000 |
| YORWASTE LIMITED | | | environmental violation | 2011 | UK-EA | £20,000 |
| YORWASTE LIMITED | | | environmental violation | 2011 | UK-EA | £0 |
| YOUNG & CO'S BREWERY PLC | | | environmental violation | 2010 | UK-EA | £27,000 |
| Your Space Projects Limited | | | habitat violation | 2024 | UK-NRW | £2,605 |
| YSG WASTE MANAGEMENT LIMITED | | | environmental violation | 2011 | UK-EA | £1,000 |
| YSG WASTE MANAGEMENT LIMITED | | | environmental violation | 2011 | UK-EA | £1,000 |
| YSG WASTE MANAGEMENT LIMITED | | | environmental violation | 2011 | UK-EA | £1,000 |
| YSG WASTE MANAGEMENT LIMITED | | | environmental violation | 2011 | UK-EA | £1,000 |
| YSG WASTE MANAGEMENT LIMITED | | | environmental violation | 2011 | UK-EA | £1,000 |
| YSG WASTE MANAGEMENT LIMITED | | | environmental violation | 2011 | UK-EA | £5,000 |
| Z Car Trader Limited | | | environmental violation | 2016 | UK-EA | £0 |
| Z Car Trader Ltd Registered Company | | | environmental violation | 2016 | UK-EA | £0 |
| Z MUNTER (FARMS) LTD | | | environmental violation | 2012 | UK-EA | £14,000 |
| Zest Recruitment Staffing Solutions Ltd | | | Environmental Violation | 2017 | UK-NRW | £0 |
| Ziff Brothers Investments, LLC | | | environmental violation | 2017 | UK-EA | £8,223 |
| Zip World Limited | | | Environmental Violation | 2021 | UK-NRW | £0 |
