| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ASSOCIATION OF ELECTRICITY PRODUCERS LIMITED | 02779199 | 17/03/2022 | Silver |
| BRITISH GAS LIMITED | 08811254 | 27/04/2017 | Bronze |
| BRITISH GAS SERVICES (COMMERCIAL) LIMITED | 07385984 | 27/04/2017 | One Red Flag |
| BRITISH GAS TRADING LIMITED | 03078711 | 27/04/2017 | Silver |
| BRITISH GAS X LIMITED | 10860745 | 12/11/2019 | Strike Off |
| CENTRICA BETA HOLDINGS LIMITED | 04710850 | 30/09/2020 | Silver |
| CENTRICA ENERGY STORAGE LIMITED | 03294124 | 08/06/2021 | Bronze |
| CENTRICA FINANCE (CANADA) LIMITED | 04055254 | 30/09/2020 | Dissolved |
| CENTRICA FINANCE (US) LIMITED | 04140765 | 30/09/2020 | Dissolved |
| CENTRICA GAMMA HOLDINGS LIMITED | 04710840 | 30/09/2020 | Gold |
| CENTRICA HOLDINGS LIMITED | 05625463 | 30/09/2020 | Silver |
| CENTRICA IRELAND HOLDINGS LIMITED | FC040119 | 20/12/2022 | Bronze |
| CENTRICA OFFSHORE UK LIMITED | 04248952 | 05/08/2021 | Bronze |
| CENTRICA OVERSEAS HOLDINGS LIMITED | 03922153 | 30/09/2020 | Gold |
| CENTRICA SERVICES LIMITED | 10553056 | 30/09/2020 | Amber |
| CENTRICA STORAGE HOLDINGS LIMITED | 04573558 | 08/06/2021 | Silver |
| GB GAS HOLDINGS LIMITED | 03186121 | 30/09/2020 | Silver |
| GENERAL COUNSEL FOR DIVERSITY & INCLUSION | 13480681 | 12/10/2023 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BRITISH GAS NEW HEATING LIMITED | 06723244 | 31/03/2017 | 17/12/2023 | Bronze |
| BRITISH GAS SOCIAL HOUSING LIMITED | 01026007 | 27/04/2017 | 17/12/2023 | One Red Flag |
| CENTRICA SUPPLY CHAIN LIMITED | 13350120 | 21/04/2021 | 31/01/2024 | Not Trading |
| DYNO-ROD LIMITED | 01046906 | 27/04/2017 | 17/12/2023 | Gold |
| P.H JONES GROUP LIMITED | 06474145 | 27/04/2017 | 17/12/2023 | Gold |
| P.H. JONES FACILITIES MANAGEMENT LTD | 01606880 | 27/04/2017 | 30/06/2022 | Dissolved |