| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| FILTRONIC BROADBAND LIMITED | 03398105 | 01/06/2004 | 06/04/2005 | Silver |
| FILTRONIC PLC | 02891064 | 05/10/1998 | 06/04/2005 | Gold |
| Filtronic Cable Communications Ltd | 03183533 | 01/06/2004 | 06/04/2005 | Dissolved |
| Filtronic Executive Share Option Trustees Ltd | 01845899 | 16/06/2004 | 06/04/2005 | Dissolved |
| Filtronic Microtek Ltd | 03398100 | 01/06/2004 | 06/04/2005 | Dissolved |
| Hero Ltd | 03904010 | 07/09/2006 | 10/10/2008 | Dissolved |
| INTENSE LIMITED | SC202087 | 14/06/2004 | 03/12/2009 | Dissolved |
| RFMD (UK) LIMITED | 02927965 | 15/02/2000 | 06/04/2005 | Dissolved |
| SURREY SATELLITE TECHNOLOGY LIMITED | 01916260 | 29/04/2005 | 22/03/2006 | Amber |
| TELEDYNE DEFENCE LIMITED | 01659830 | 01/06/2004 | 06/04/2005 | Dissolved |
| TELEDYNE PROPERTIES LIMITED | 03183532 | 01/06/2004 | 06/04/2005 | Dissolved |
| THE CENTRE OF EXCELLENCE FOR NANOTECHNOLOGY MICRO AND PHOTONIC SYSTEMS | 04938671 | 20/01/2004 | 16/05/2006 | Dissolved |
| THE DAPHNE JACKSON MEMORIAL FELLOWSHIPS TRUST | 06621472 | 17/06/2008 | 13/11/2009 | Gold |
| THE ENGINEERING AND TECHNOLOGY BOARD | 04322409 | 09/03/2007 | 18/06/2009 | Amber |
| UNIVERSITY OF SURREY SEED FUND LIMITED | 03928192 | 15/09/2005 | 09/07/2009 | Silver |