| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| IRIE LIMITED | 06864379 | 27/04/2016 | Dissolved |
| KLAZE LIMITED | 14770925 | 23/08/2023 | Silver |
| PX APPOINTMENTS LIMITED | 04827939 | 05/06/2007 | Not Trading |
| PX APPOINTMENTS LIMITED | 04827939 | 27/04/2016 | Not Trading |
| PX BIODIESEL IMMINGHAM LIMITED | 05807602 | 27/04/2016 | Dissolved |
| PX BIOETHANOL TEESSIDE LIMITED | 05807718 | 27/04/2016 | Dissolved |
| PX MANAGEMENT LIMITED | 05807951 | 27/04/2016 | Dissolved |
| PX RESERVE LIMITED | 06503959 | 27/04/2016 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CAMM-PRO LIMITED | SC545876 | 19/11/2019 | 02/06/2023 | One Red Flag |
| CONNICK ENGINEERING LIMITED | 01583885 | 30/03/2022 | 25/10/2024 | Not Trading |
| COULOMB ENERGY SUPPLY LIMITED | 07488842 | 27/04/2016 | 25/10/2024 | Bronze |
| ENERGY24 LIMITED | 05809051 | 27/04/2016 | 25/10/2024 | Bronze |
| ENERGY24 SERVICES LIMITED | 06864372 | 27/04/2016 | 25/10/2024 | Amber |
| FAIRPORT ENGINEERING LIMITED | 06534289 | 30/03/2022 | 25/10/2024 | Silver |
| FAIRPORT PROCESS EQUIPMENT LIMITED | 06988408 | 30/03/2022 | 25/10/2024 | Not Trading |
| FEL HOLDINGS LTD | 10436595 | 30/03/2022 | 25/10/2024 | Bronze |
| NRG WELL MANAGEMENT LIMITED | SC332271 | 28/04/2020 | 17/03/2023 | Gold |
| ORCHID BIOENERGY GROUP LIMITED | 06544458 | 30/03/2022 | 25/10/2024 | Bronze |
| ORCHID ENVIRONMENTAL LIMITED | 04661314 | 30/03/2022 | 25/10/2024 | Not Trading |
| ORCHID I P LIMITED | 06529101 | 30/03/2022 | 25/10/2024 | Not Trading |
| PX (TGPP) LIMITED | 04416996 | 27/04/2016 | 25/10/2024 | Amber |
| PX AMERICAS HOLDCO LIMITED | 15524377 | 04/04/2024 | 25/10/2024 | Amber |
| PX APPOINTMENTS LIMITED | 04827939 | 05/06/2007 | 12/06/2009 | Not Trading |
| PX ENGINEERING CONSULTANTS LIMITED | 05692095 | 27/04/2016 | 25/10/2024 | Gold |
| PX HOLDINGS LIMITED | 04417010 | 27/04/2016 | 25/10/2024 | Bronze |
| PX LIMITED | 04373756 | 27/04/2016 | 25/10/2024 | Bronze |
| PX LNG TEESSIDE LIMITED | 05807651 | 27/04/2016 | 25/10/2024 | Not Trading |
| PX SUPPLY LIMITED | 10738921 | 25/04/2017 | 25/10/2024 | One Red Flag |
| SALTEND CHEMICALS PARK LIMITED | 10542068 | 14/03/2018 | 25/10/2024 | One Red Flag |