| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BRSK ISP LIMITED | 13853894 | 16/08/2024 | Amber |
| BRSK LIMITED | 12792126 | 16/08/2024 | Bronze |
| NETOMNIA LIMITED | 12008248 | 06/10/2020 | Amber |
| NETXCO LIMITED | 15969913 | 20/09/2024 | Amber |
| SALTCO II LIMITED | 15245682 | 16/08/2024 | Bronze |
| SALTCO LIMITED | 14228524 | 16/08/2024 | Bronze |
| SUBSTANTIAL BIDCO LIMITED | 12896873 | 04/06/2021 | Amber |
| SUBSTANTIAL GROUP LIMITED | 12315611 | 06/10/2020 | One Red Flag |
| SUBSTANTIAL HOLDCO LIMITED | 15858893 | 25/07/2024 | Amber |
| SUBSTANTIAL MIDCO 2 LIMITED | 13624924 | 16/09/2021 | Silver |
| SUBSTANTIAL MIDCO LIMITED | 12896901 | 04/06/2021 | Amber |
| THE ONE TOUCH SWITCHING COMPANY LIMITED | 14115273 | 20/06/2024 | Bronze |
| YOUFIBRE LIMITED | 12359292 | 06/10/2020 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| SUBSTANTIAL TOPCO LIMITED | 12897000 | 04/06/2021 | 29/09/2022 | Amber |