| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Ancrane | 04308188 | 09/08/2002 | 19/11/2002 | Dissolved |
| Associated Electrical Industries International Ltd | 00610596 | 01/09/1997 | 19/11/2002 | Dissolved |
| DIODES SEAL SEMICONDUCTORS LIMITED | 03459157 | 06/03/1998 | 17/07/1998 | Dissolved |
| ELMER U.K. LIMITED | 03202906 | 09/09/1999 | 19/10/2000 | Dissolved |
| Enhance Communications Ltd | 01424455 | 20/06/1995 | 04/04/1997 | Dissolved |
| G MIDDLE EAST LIMITED | 00402792 | 02/06/1995 | 07/04/1997 | Dissolved |
| G P T C S Ltd | 00446254 | 09/09/1999 | 19/10/2000 | Dissolved |
| G P T Consumer Products Ltd | 00156950 | 20/06/1995 | 04/04/1997 | Dissolved |
| G P T Payphone Systems Ltd | 00712108 | 20/06/1995 | 04/04/1997 | Dissolved |
| G Reliance Ltd | 02353799 | 20/06/1995 | 04/04/1997 | Dissolved |
| GPT SPECIAL PROJECT MANAGEMENT LIMITED | 02984211 | 20/06/1995 | 07/04/1997 | N/A |
| M (2003) PLC | 03846429 | 10/04/2001 | 14/11/2002 | Dissolved |
| M (DGP1) LIMITED | 03545378 | 12/08/2002 | 19/11/2002 | Dissolved |
| M (DGP2) LIMITED | 03545363 | 26/09/2000 | 19/11/2002 | Dissolved |
| M COMMUNICATIONS INTERNATIONAL HOLDINGS LIMITED | 02204070 | 09/09/1999 | 22/03/2002 | Gold |
| M COMMUNICATIONS INTERNATIONAL INVESTMENTS | 02203912 | 09/09/1999 | 22/03/2002 | Dissolved |
| M Communications C.I.S Ltd | 00538645 | 20/06/1995 | 04/04/1997 | Dissolved |
| M Communications China Ltd | 02956293 | 20/06/1995 | 07/04/1997 | Dissolved |
| M Communications Global Networks Ltd | 02745873 | 20/06/1995 | 04/04/1997 | Dissolved |
| M Communications Investments Ltd | 02353798 | 20/06/1995 | 04/04/1997 | Dissolved |
| M Projects Hong Kong Ltd | 00526351 | 01/09/1997 | 19/11/2002 | Dissolved |
| Marconi Communications Information Systems Ltd | 00837222 | 09/09/1999 | 19/10/2000 | Dissolved |
| Marconi Communications Optical Fibres Ltd | 00190776 | 09/09/1999 | 19/10/2000 | Dissolved |
| Marconicom Ltd | 00440647 | 02/06/1995 | 04/04/1997 | Dissolved |
| OTIS E&M COMPANY LIMITED | 00114707 | 22/12/1997 | 08/09/2000 | Bronze |
| PPCR INVESTMENTS LIMITED | 01693224 | 20/06/1995 | 04/04/1997 | Dissolved |
| S G C S Finance Ltd | 00407806 | 20/06/1995 | 14/02/1997 | Dissolved |
| SELEX ELSAG LIMITED | 00964533 | 23/11/1998 | 19/10/2000 | Not Trading |
| SELEX ES INTERNATIONAL LTD | 00964491 | 23/11/1998 | 28/02/2001 | Silver |
| SPECTRIS GROUP HOLDINGS LIMITED | 01104312 | 01/12/2004 | 21/07/2006 | Silver |
| SPECTRIS PLC | 02025003 | 01/12/2004 | 21/07/2006 | Silver |
| SPECTRIS UK HOLDINGS LIMITED | 04451903 | 01/12/2004 | 21/07/2006 | Gold |
| SPECTRIS US HOLDINGS LIMITED | 04451883 | 01/12/2004 | 21/07/2006 | Gold |
| Siemens Communications (International) Ltd | 03264460 | 31/10/1996 | 18/03/1997 | Dissolved |
| TCL PROJECTS LIMITED | 01987069 | 20/06/1995 | 07/04/1997 | Dissolved |
| TELENT COMMUNICATIONS HOLDINGS LIMITED | 00319092 | 13/09/1995 | 11/02/1997 | Gold |
| TELENT COMMUNICATIONS INTERNATIONAL LIMITED | 00464439 | 20/06/1995 | 07/04/1997 | Insolvent |
| TELENT LIMITED | 00067307 | 15/09/2000 | 14/11/2002 | Silver |
| TELENT TECHNOLOGY SERVICES LIMITED | 00703317 | 13/09/1995 | 17/02/1997 | Gold |
| TELEPHONE CABLES LIMITED | 00262342 | 09/09/1999 | 19/10/2000 | Dissolved |