| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BLUE SPOT TECHNOLOGIES LTD | 04637319 | 17/02/2006 | Dissolved |
| GAMMA METRONET LIMITED | 04340836 | 20/03/2007 | Dissolved |
| GO WORLDWIDE COMMUNICATIONS LIMITED | 04395588 | 21/12/2005 | Dissolved |
| Idn Consulting Ltd | 03656114 | 11/11/2002 | Dissolved |
| NEXTGENACCESS HOLDCO LIMITED | 11450722 | 13/12/2018 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Digenus Ltd | 04026881 | 11/11/2002 | 03/03/2003 | Dissolved |
| GAMMA BUSINESS COMMUNICATIONS LIMITED | 02998021 | 01/03/2004 | 20/06/2018 | Silver |
| GAMMA COMMUNICATIONS PLC | 08943488 | 06/06/2014 | 23/05/2018 | Silver |
| GAMMA MANAGED SERVICES LIMITED | 07136383 | 26/01/2010 | 20/06/2018 | Silver |
| GAMMA NETWORK SOLUTIONS LIMITED | 06783485 | 03/03/2012 | 20/06/2018 | Bronze |
| GAMMA TELECOM HOLDINGS LIMITED | 04287779 | 30/09/2005 | 20/06/2018 | Silver |
| GAMMA TELECOM LTD | 04340834 | 28/10/2003 | 20/06/2018 | Silver |
| GLOBAL CROSSING (UK) INTERNET SERVICES LIMITED | 03231692 | 01/10/1996 | 31/12/2001 | Dissolved |
| GLOBAL CROSSING (UK) TELECOMMUNICATIONS NETWORKS LIMITED | 02089583 | 01/02/1994 | 31/12/2001 | Dissolved |
| I D N Newcastle Ltd | 03609149 | 11/11/2002 | 03/03/2003 | Dissolved |
| IDENTA LIMITED | 03687127 | 11/11/2002 | 03/03/2003 | Dissolved |
| IDN TELECOM LIMITED | 04041485 | 11/11/2002 | 03/03/2003 | Dissolved |
| INDEPENDENT DIGITAL NETWORKS LTD | 03309548 | 11/11/2002 | 03/03/2003 | Dissolved |
| Identa Telecom Ltd | 04127832 | 11/11/2002 | 03/03/2003 | Dissolved |
| LUMEN TECHNOLOGIES UK LIMITED | 02495998 | 17/10/1996 | 31/12/2001 | Bronze |