| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ALPAIR LIMITED | 03960058 | 30/03/2000 | Dissolved |
| Cytech Cores Ltd | 04783825 | 12/03/2009 | Dissolved |
| SI-LIGHT TECHNOLOGIES LTD | 04538970 | 14/01/2005 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Anadigm Ltd | 03800203 | 25/09/2000 | 02/10/2003 | Dissolved |
| BROADCOM EUROPE LIMITED | 04085571 | 04/05/2001 | 17/09/2004 | Silver |
| CYANCONNODE HOLDINGS PLC | 04554942 | 30/11/2005 | 30/06/2017 | Amber |
| CYANCONNODE LIMITED | 04724479 | 12/03/2009 | 30/06/2017 | Amber |
| ENECSYS UK LIMITED | 04832321 | 01/06/2005 | 17/07/2007 | Dissolved |
| ICENI ADVISORY LIMITED | 04417604 | 14/11/2005 | 06/12/2011 | Not Trading |
| IM-SENSE LIMITED | 05692675 | 20/06/2008 | 15/07/2010 | Dissolved |
| POWER INTEGRATIONS UK LIMITED | 04025031 | 13/11/2000 | 16/02/2007 | Gold |
| ULTRASOC TECHNOLOGIES LIMITED | 05561843 | 28/01/2009 | 18/09/2012 | Dissolved |