| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Alcatel Internetworking Uk Ltd | 03482144 | 07/02/2003 | Dissolved |
| MERTHYR TYDFIL LEISURE TRUST LIMITED | 09172730 | 09/08/2019 | Insolvent |
| Maxim Networks Ltd | 02556718 | 01/06/1999 | Dissolved |
| O S T (U K) Ltd | 02535847 | 01/06/1999 | Dissolved |
| O S T Ltd | 02930477 | 01/06/1999 | Dissolved |
| U B Networks Ltd | 02957756 | 01/06/1999 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALCAD LIMITED | 01674043 | 19/03/2004 | 24/11/2004 | Dissolved |
| ALCATEL NETWORKS LIMITED | 02020682 | 27/07/2000 | 24/11/2004 | Dissolved |
| ALCATEL NETWORKS SERVICES LIMITED | 03404726 | 05/03/1999 | 24/11/2004 | Dissolved |
| ALCATEL SUBMARINE NETWORKS UK LTD | 01750343 | 16/02/2004 | 24/11/2004 | Gold |
| ALCATEL-LUCENT PENSION TRUSTEES LIMITED | 01478508 | 21/06/2001 | 21/06/2001 | Dissolved |
| ALCATEL-LUCENT PENSION TRUSTEES LIMITED | 01478508 | 21/06/2001 | 24/11/2004 | Dissolved |
| ALCATEL-LUCENT UK LIMITED | 02855052 | 15/01/2004 | 24/11/2004 | Dissolved |
| Alcanet International U K Ltd | 03061512 | 28/02/2002 | 24/11/2004 | Dissolved |
| Alcanet International U K Ltd | 03061512 | 28/02/2002 | 24/11/2004 | Dissolved |
| DIMENSION DATA COMMUNICATIONS UK LIMITED | 04036009 | 25/09/2000 | 28/03/2002 | Dissolved |
| HITEX (UK) LIMITED | 02282162 | 01/06/2016 | 25/10/2017 | Silver |
| INFINEON TECHNOLOGIES NEWPORT HOLDING LIMITED | 04364539 | 17/09/2013 | 29/09/2017 | Dissolved |
| INFINEON TECHNOLOGIES REIGATE LIMITED | 00616524 | 16/09/2013 | 29/09/2017 | Bronze |
| INFINEON TECHNOLOGIES UK LIMITED | 03782938 | 26/05/2015 | 01/05/2017 | Gold |
| INFINEON TECHNOLOGIES US HOLDCO INC. | FC033156 | 02/03/2016 | 29/09/2017 | Dissolved |
| Imagictv (U K) Ltd | 03902442 | 25/03/2004 | 24/11/2004 | Dissolved |
| NOKIA UK LIMITED | 02650571 | 09/01/2001 | 24/11/2004 | Silver |
| STC | 00106921 | 16/02/2004 | 24/11/2004 | Insolvent |