| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| COVANTA BRIG Y CWM LIMITED | 07261951 | 24/04/2013 | Dissolved |
| COVANTA ENERGY (UK) LIMITED | 06087526 | 24/04/2013 | Dissolved |
| COVANTA HOLDING LIMITED | 06006368 | 24/04/2013 | Dissolved |
| COVANTA INCE PARK LIMITED | 07246720 | 24/04/2013 | Dissolved |
| COVANTA NEWHURST DEVELOPMENT LIMITED | 11069720 | 17/11/2017 | Dissolved |
| COVANTA PROTOS DEVELOPMENT LIMITED | 11066931 | 16/11/2017 | Dissolved |
| COVANTA UK ENGINEERING LIMITED | 07261944 | 24/04/2013 | Dissolved |
| COVANTA UK OPERATIONS LIMITED | 07261947 | 24/04/2013 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| COVANTA HOLDING 2 UK LIMITED | 11074128 | 21/11/2017 | 01/01/2021 | Strike Off |
| COVANTA HOLDING UK LIMITED | 11069521 | 17/11/2017 | 01/01/2021 | Amber |
| ENCYCLIS EUROPE INVESTMENTS LIMITED | 11077964 | 23/11/2017 | 01/01/2021 | Bronze |
| ENCYCLIS LIMITED | 05845046 | 24/04/2013 | 01/01/2021 | Silver |
| RBWM COMMERCIAL SERVICES LIMITED | 07432503 | 24/04/2013 | 11/02/2014 | Dissolved |
| ROOKERY SOUTH LIMITED | 07094843 | 24/04/2013 | 20/07/2018 | Bronze |