| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AVOCET O&M LIMITED | 10931726 | 24/08/2017 | Dissolved |
| CONDATE BIOGAS LIMITED | 09361670 | 07/11/2019 | Silver |
| CONDATE BIOGAS O&M LIMITED | 10931862 | 24/08/2017 | Dissolved |
| CRANBROOK O&M LIMITED | 10931806 | 24/08/2017 | Dissolved |
| ENGIE RENEWABLE GASES UK LIMITED | 10895324 | 24/08/2017 | Bronze |
| GORST ENERGY LIMITED | 09001800 | 25/04/2019 | Bronze |
| GORST ENERGY O&M LIMITED | 10931848 | 24/08/2017 | Dissolved |
| GREEN PUFFIN O&M LIMITED | 10931867 | 24/08/2017 | Dissolved |
| IXORA HR LIMITED | 10927650 | 25/08/2017 | One Red Flag |
| NOMANSLAND BIOGAS O&M LIMITED | 10931824 | 24/08/2017 | Dissolved |
| SOUTHWESTERN SUSTAINABILITY O&M LIMITED | 10931951 | 24/08/2017 | Dissolved |
| SUSTAINABLE ENERGY GENERATION LIMITED | 09275469 | 04/07/2019 | Bronze |
| SUSTAINABLE ENERGY GENERATION O&M LIMITED | 10931736 | 24/08/2017 | Dissolved |
| WEST COUNTRY SOIL IMPROVEMENT LIMITED | 11064821 | 29/02/2024 | Gold |
| WILLOWGLEN RENEWABLES O&M LIMITED | 10931853 | 24/08/2017 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AVOCET RENEWABLES LIMITED | 08993345 | 07/11/2019 | 07/03/2022 | Bronze |
| CRANBROOK RENEWABLES LIMITED | 09356983 | 07/11/2019 | 14/10/2020 | One Red Flag |
| GREEN PUFFIN LIMITED | 09010638 | 07/11/2019 | 12/09/2023 | Silver |
| NOMANSLAND BIOGAS LIMITED | 08682475 | 07/11/2019 | 07/03/2022 | One Red Flag |
| WILLOWGLEN RENEWABLES LIMITED | 08763084 | 07/11/2019 | 28/06/2023 | One Red Flag |