| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DALKIA ENERGY SERVICES LIMITED | 07023025 | 01/11/2020 | Bronze |
| DALKIA ENGINEERING HOLDING LIMITED | 09752538 | 01/11/2020 | One Red Flag |
| DALKIA GROUP LIMITED | 09752439 | 06/07/2017 | Bronze |
| DALKIA OPERATIONS HOLDING LIMITED | 07201157 | 19/12/2022 | Amber |
| DALKIA OPERATIONS LIMITED | 06275653 | 31/05/2023 | Bronze |
| DALKIA UK HOLDING LIMITED | 09752551 | 01/11/2020 | One Red Flag |
| DK ENERGY UK LIMITED | 09347361 | 01/10/2017 | Dissolved |
| DK WHS LIMITED | 05211611 | 31/05/2023 | Gold |
| ESSCI TECHNICAL FACILITIES MANAGEMENT LIMITED | 09752544 | 01/11/2020 | Silver |
| LEVEN ENERGY SERVICES LIMITED | 06731507 | 31/05/2023 | Amber |
| MEDICAL & SCIENTIFIC STRUCTURES LIMITED | 10117952 | 31/05/2023 | Not Trading |
| POWER AND NUCLEAR UK LIMITED | 07243781 | 31/05/2023 | Not Trading |
| THE BARKANTINE HEAT AND POWER COMPANY LIMITED | 03693914 | 09/06/2017 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|