| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Xionics Holdings Ltd | 02528084 | 11/01/2000 | Dissolved |
| Xionics International Ltd | 01371550 | 11/01/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AUDIUM SEMICONDUCTOR LIMITED | 05601804 | 29/01/2007 | 18/02/2010 | Dissolved |
| CSR IMAGING UK LTD. | 03863617 | 21/07/2000 | 19/11/2003 | Amber |
| SVF HOLDCO (UK) LIMITED | 02548782 | 02/04/2007 | 31/12/2012 | Silver |