| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Calcomp Europe Ltd | 01417880 | 31/03/1995 | Dissolved |
| Calcomp Ltd | 00929933 | 31/03/1995 | Dissolved |
| Lockheed Martin Intersputnik (U K) Ltd | 03406557 | 09/02/1998 | Dissolved |
| Summagraphics Ltd | 01641998 | 23/01/1998 | Dissolved |
| Tkb Services (No. 2) Limited | 02133474 | 11/01/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Beatsons Ltd | 02091059 | 01/08/1991 | 13/11/1992 | Dissolved |
| China Investment Trust Plc | 02766987 | 16/04/1993 | 16/04/1993 | Dissolved |
| DOPOWER LIMITED | 02637105 | 05/02/1998 | 18/04/2007 | Silver |
| DOPOWER LIMITED | 02637105 | 09/12/1991 | 18/04/2007 | Silver |
| EPS SECRETARIES LIMITED | 02231995 | 18/08/2000 | 30/04/2003 | Dissolved |
| Lockheed Martin U K Systems & Services Ltd | 01972284 | 31/12/1991 | 17/08/1999 | Dissolved |
| NEACREST LIMITED | 01053073 | 31/12/1991 | 29/07/1998 | Dissolved |
| TKB REGISTRARS LIMITED | 00910149 | 04/01/1993 | 28/04/1995 | Not Trading |
| TKB TRUSTEES LIMITED | 02221155 | 03/08/1995 | 30/04/2003 | Dissolved |
| Tpl Digital (Uk) Ltd | 00688213 | 04/10/1991 | 14/01/2002 | Dissolved |