| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| COOMBE HOUSE GARDENS LIMITED | 02875916 | 22/02/2007 | Gold |
| SILVERTECH SAFETY CONSULTANCY LTD | 06287335 | 20/06/2007 | Dissolved |
| SILVERTECH SAFETY CONSULTANCY LTD | 06287335 | 01/07/2010 | Dissolved |
| Silvertech Industrial Automation Ltd | 02891216 | 15/07/1994 | Dissolved |
| Silvertech International Investments Ltd | 04171064 | 14/03/2001 | Dissolved |
| Silvertech Middle East Ltd | 03974598 | 12/04/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 07006868 LIMITED | 07006868 | 17/11/2009 | 15/01/2021 | Insolvent |
| Functional Safety Consultancy Ltd | 04181075 | 04/05/2001 | 16/12/2009 | Dissolved |
| ICS TRIPLEX SILVERTECH LIMITED | 01783852 | 17/07/1991 | 27/09/2007 | Dissolved |
| Silvertech International Ltd | 03452850 | 24/10/1997 | 01/03/2002 | Dissolved |
| Space Technology International Plc | 02044715 | 30/09/1991 | 31/12/2003 | Dissolved |