| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CLCB HOLDINGS LIMITED | SC460240 | 07/01/2019 | Dissolved |
| CORGI HOMEHEAT LIMITED | SC431485 | 07/01/2019 | Dissolved |
| LUMO ONLINE LTD | 10732817 | 07/01/2019 | Dissolved |
| SPARK ENERGY FINANCE PLC | SC495826 | 07/01/2019 | Dissolved |
| SPARK GENERATION LTD | SC362870 | 07/01/2019 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ASSOCIATION OF ELECTRICITY PRODUCERS LIMITED | 02779199 | 23/07/2019 | 01/03/2022 | Silver |
| HOME TELECOM LIMITED | 07412021 | 07/01/2019 | 14/02/2020 | One Red Flag |
| OVO (S) ELECTRICITY LIMITED | 04094263 | 16/01/2020 | 01/03/2022 | Amber |
| OVO (S) ENERGY SERVICES LIMITED | 11046212 | 16/01/2020 | 01/03/2022 | Silver |
| OVO (S) ENERGY SOLUTIONS LIMITED | SC386054 | 16/01/2020 | 01/03/2022 | One Red Flag |
| OVO (S) GAS LIMITED | 02716495 | 16/01/2020 | 01/03/2022 | Amber |
| OVO (S) METERING LIMITED | SC318950 | 16/01/2020 | 01/03/2022 | Dissolved |
| OVO ELECTRICITY LTD | 06858121 | 07/01/2019 | 01/03/2022 | Gold |
| OVO ENERGY LTD | 06890795 | 07/01/2019 | 01/03/2022 | Bronze |
| OVO FIELD FORCE LTD | 08785057 | 18/01/2021 | 01/03/2022 | Amber |
| OVO FINANCE LTD | 10722770 | 07/01/2019 | 01/03/2022 | Silver |
| OVO GAS LTD | 06752915 | 07/01/2019 | 01/03/2022 | Gold |
| OVO GROUP LTD | 08862063 | 07/01/2019 | 01/03/2022 | Silver |
| OVO HOLDINGS LTD | 10722665 | 07/01/2019 | 01/03/2022 | Silver |
| SPARK ENERGY LIMITED | SC301188 | 07/01/2019 | 01/03/2022 | Dissolved |
| TALKTALK TV ENTERTAINMENT LIMITED | 05829251 | 25/05/2006 | 07/01/2015 | Silver |
| TESCO INTERNATIONAL INTERNET RETAILING LIMITED | 00041420 | 03/11/2015 | 23/07/2019 | Dissolved |