| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| M D I (Uk) Ltd | 02103959 | 14/10/1991 | Dissolved |
| Motorola Information Systems Ltd | 01526193 | 19/09/1991 | Dissolved |
| National Mobile Radio Ltd | 02036748 | 24/06/1994 | Dissolved |
| Real Broadband Ltd | 05341279 | 01/07/2005 | Dissolved |
| Storno Ltd | 00655570 | 16/01/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BEECH COURT (IOW) MANAGEMENT COMPANY LIMITED | 03224793 | 05/08/1999 | 05/05/2001 | Gold |
| FIRSTMARK COMMUNICATIONS LIMITED | 03612789 | 05/08/1998 | 14/12/1998 | Dissolved |
| MOTOROLA SOLUTIONS UK LIMITED | 00912182 | 22/06/1992 | 02/07/1998 | Silver |
| THE CITIZENSHIP FOUNDATION | 02351363 | 10/12/1996 | 10/05/2007 | Amber |