| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Nortel Ltd | 03598702 | 16/12/2008 | Dissolved |
| Promatory Communications (Uk) Ltd | 03679283 | 31/03/2007 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Architel Systems (U K) Ltd | 02948490 | 31/03/2007 | 03/03/2010 | Dissolved |
| Clarify Ltd | 02990502 | 31/03/2007 | 03/03/2010 | Dissolved |
| NOR.WEB DPL LIMITED | 03481529 | 12/12/2008 | 30/09/2010 | Dissolved |
| NORTEL NETWORKS EMPLOYEE BENEFIT TRUSTEE COMPANY LIMITED | 02352668 | 06/11/2009 | 30/09/2010 | Dissolved |
| NORTEL NETWORKS OPTICAL COMPONENTS LIMITED | 02515751 | 30/03/2007 | 30/09/2010 | Strike Off |
| NORTEL NETWORKS PROPERTIES LIMITED | 00710790 | 31/03/2007 | 30/09/2010 | Dissolved |
| NORTEL NETWORKS UK LIMITED | 03937799 | 01/04/2006 | 30/09/2010 | Insolvent |
| NORTHERN TELECOM PCN LIMITED | 02480308 | 16/12/2008 | 30/09/2010 | Dissolved |
| Penril Datacomm Ltd | 01713909 | 31/03/2007 | 03/03/2010 | Dissolved |
| Sonoma Ltd | 01947941 | 16/12/2008 | 03/03/2010 | Dissolved |
| Sonoma Systems Europe Ltd. | 02490002 | 16/12/2008 | 03/03/2010 | Dissolved |