| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ARCUS SERVICES LIMITED | 09944454 | 20/01/2016 | Dissolved |
| AURA (OXFORD) LIMITED | 11071728 | 09/01/2024 | One Red Flag |
| CONCERT LIMITED | 04683798 | 31/10/2003 | Dissolved |
| IRIS GLOBAL TELECOM LLP | OC319570 | 08/05/2006 | Dissolved |
| LITMUS ZERO LTD | 15741390 | 25/05/2024 | Amber |
| RAINBOW GLOBAL NETWORK SERVICES LLP | OC407404 | 22/03/2016 | Dissolved |
| RAINBOW GLOBAL NETWORKS LIMITED | 05972643 | 20/10/2006 | Dissolved |
| RAINBOW GLOBAL NETWORKS LIMITED | 05972643 | 20/10/2006 | Dissolved |
| RAINBOW TECHNICAL LIMITED | 04371841 | 18/04/2002 | Dissolved |
| RAINBOW TECHNICAL LIMITED | 04371841 | 18/04/2002 | Dissolved |
| Rainbow Asset Finance Ltd | 04413519 | 10/04/2002 | Dissolved |
| Rainbow Asset Finance Ltd | 04413519 | 10/04/2002 | Dissolved |
| Rainbow Bizcom Connect Ltd | 05177097 | 12/07/2004 | Dissolved |
| Rainbow Bizcom Connect Ltd | 05177097 | 12/07/2004 | Dissolved |
| SPANISH PROPERTIES ASSETS MANAGEMENT LTD | 04785999 | 10/06/2003 | One Red Flag |
| VERSION28 LTD | 14064855 | 01/03/2023 | One Red Flag |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CONCERT LIMITED | 04683798 | 23/07/2003 | 22/07/2008 | Dissolved |
| RAINBOW TELECOM LIMITED | 04371499 | 18/04/2002 | 02/03/2016 | Dissolved |
| RAINBOW TELECOM LIMITED | 04371499 | 18/04/2002 | 02/03/2016 | Dissolved |
| Rainbow Voice Ltd | 05421844 | 11/05/2005 | 01/02/2007 | Dissolved |
| WIRELESS TELECOMMUNICATIONS LIMITED | 04668356 | 23/04/2018 | 31/07/2020 | Bronze |