| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Arran Automation Ltd | 03157564 | 12/02/1996 | Dissolved |
| Chiltern Consultancy Limited | 02683693 | 03/02/1992 | Dissolved |
| Contelec Supplies Ltd | 01203584 | 14/10/2002 | Dissolved |
| H-T E Controls Ltd | 02230342 | 17/10/1995 | Dissolved |
| Ht Electrical Ltd | 02800516 | 07/06/1996 | Dissolved |
| Hte Ltd | 02800514 | 29/05/1996 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ASSOCIATED INDUSTRIAL CONTROL SOLUTIONS LIMITED | 02803632 | 07/06/1996 | 01/03/2007 | Bronze |
| Arran Automation Ltd | 03157564 | 12/02/1996 | 12/02/1997 | Dissolved |
| C-Communication Ltd | 02705245 | 27/04/1992 | 29/04/1993 | Dissolved |
| D.S. HOLDINGS LIMITED | 00389246 | 29/05/1996 | 01/03/2007 | Dissolved |
| ENVIROGREEN LIMITED | 02800511 | 29/05/1996 | 01/03/2007 | Bronze |
| INVESTCOM LIMITED | 03102578 | 18/09/1995 | 30/09/1995 | Dissolved |
| INVESTCOM LIMITED | 03102578 | 18/09/1995 | 01/03/2007 | Dissolved |