| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ENRICHMENT HOLDINGS LTD. | 06387705 | 07/10/2021 | Silver |
| ENRICHMENT INVESTMENTS LIMITED | 04223635 | 07/10/2021 | Gold |
| URENCO LIMITED | 01022786 | 07/10/2021 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| GREAT BRITISH RAILWAYS TRANSITION TEAM LIMITED | 14066335 | 01/09/2022 | 30/06/2024 | Amber |
| NETWORK RAIL INFRASTRUCTURE LIMITED | 02904587 | 11/05/2020 | 30/06/2024 | Bronze |
| NETWORK RAIL LIMITED | 04402220 | 11/05/2020 | 30/06/2024 | Bronze |
| ORDNANCE SURVEY LIMITED | 09121572 | 11/01/2016 | 16/10/2017 | Silver |
| PORTON BIOPHARMA LIMITED | 09331560 | 08/05/2017 | 15/02/2019 | Amber |
| WORKING LINKS (EMPLOYMENT) LIMITED | 03943678 | 24/07/2009 | 29/06/2016 | Insolvent |