| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Auto-Soft Corporation Ltd | SC166802 | 01/01/2005 | Dissolved |
| Autosimulations Ltd | 03091569 | 20/11/2003 | Dissolved |
| Pri Automation Ltd | 03304368 | 23/05/2003 | Dissolved |
| Promis Systems Corporation (U K) Ltd | 02049466 | 23/05/2003 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Acterna Ltd | 04111478 | 16/11/2000 | 15/08/2002 | Dissolved |
| BROOKS AUTOMATION (UK) LIMITED | 03280562 | 23/05/2003 | 31/12/2007 | Dissolved |
| Dynatech Corporation Ltd | 02475549 | 21/05/1998 | 15/08/2002 | Dissolved |
| GENERAL DYNAMICS ITRONIX EUROPE LTD. | 01328356 | 23/02/2000 | 15/08/2002 | Dissolved |
| GRETAGMACBETH LIMITED | 00885001 | 31/03/1992 | 01/07/1996 | Dissolved |
| KONTRON UK LIMITED | 03204417 | 23/12/1999 | 24/07/2003 | Silver |
| Oldwillcom Ltd | 03006831 | 02/03/2001 | 22/05/2002 | Dissolved |