| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ELECTRICITYWORX LTD | NI624452 | 21/04/2021 | Bronze |
| KELTBRAY ENERGY LIMITED | 12930461 | 28/05/2021 | Silver |
| KELTBRAY HIGHWAYS LIMITED | 12788652 | 02/03/2022 | Amber |
| KELTBRAY IDEC GROUP LIMITED | 11748139 | 01/11/2022 | Dissolved |
| KELTBRAY IDEC POWER LIMITED | 07801180 | 11/11/2022 | Dissolved |
| KELTBRAY INFRASTRUCTURE MANAGEMENT SERVICES LIMITED | 15576040 | 19/03/2024 | Amber |
| KELTBRAY INFRASTRUCTURE PLANT LIMITED | 14882585 | 23/04/2024 | Bronze |
| KELTBRAY INFRASTRUCTURE SERVICES LIMITED | 14882565 | 23/04/2024 | Bronze |
| KELTBRAY RAIL LIMITED | 06000882 | 28/05/2021 | One Red Flag |
| KELTBRAY-IDEC LIMITED | 04446810 | 01/11/2022 | One Red Flag |
| OSPREY BIDCO LIMITED | 15819536 | 15/08/2024 | Amber |
| OSPREY DEBTCO LIMITED | 15868953 | 15/08/2024 | Amber |
| OSPREY MIDCO LIMITED | 15819379 | 15/08/2024 | Amber |
| Spectrum Rail Ltd | 06798147 | 22/01/2009 | Dissolved |
| WENTWORTH HOUSE RAIL SYSTEMS LIMITED | 06696437 | 23/04/2024 | Bronze |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|