| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| 4SITE TELECOMS UK LTD | 08627828 | 29/07/2013 | Silver |
| BELLCOM UK LIMITED | 05459035 | 07/06/2024 | Silver |
| HUTCHISON COMMUNICATION SYSTEMS LIMITED | 03462357 | 31/10/2023 | Not Trading |
| INDIGO GROUP HOLDINGS LIMITED | 10072338 | 23/04/2020 | Bronze |
| INDIGO TELECOM INSTALLATION SERVICES LIMITED | 04200834 | 31/10/2023 | Not Trading |
| SION BIDCO LIMITED | 11680047 | 23/04/2020 | One Red Flag |
| SION MIDCO LIMITED | 11680008 | 23/04/2020 | Bronze |
| SION TOPCO LIMITED | 11679768 | 23/04/2020 | Amber |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|