| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| HYPROFORMANCE LIMITED | 05369525 | 18/02/2005 | Dissolved |
| VSI LIMITED | 05653872 | 01/08/2006 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| A E A Technology Ebis Ltd | 02586789 | 18/03/1991 | 11/05/1994 | Dissolved |
| ARKEX LIMITED | 04255000 | 02/12/2009 | 23/09/2015 | Dissolved |
| CFX LIMITED | 03524833 | 01/04/1999 | 20/01/2000 | Dissolved |
| HOTTINGER BRUEL & KJAER UK LTD | 01589921 | 30/01/1998 | 02/03/1999 | Silver |
| LIGHTWORKS SOFTWARE LIMITED | 07475417 | 23/03/2011 | 18/09/2018 | Dissolved |
| LOUGHRIGG BROW MANAGEMENT LIMITED | 03712462 | 02/11/2002 | 06/08/2007 | Silver |
| MACHINEWORKS SOFTWARE LIMITED | 07475526 | 23/03/2011 | 04/04/2014 | Dissolved |
| VIKING MOORINGS GROUP LIMITED | 05641019 | 12/12/2005 | 24/07/2009 | Dissolved |
| VIKING MOORINGS HOLDINGS LIMITED | 05643451 | 12/12/2005 | 24/07/2009 | Dissolved |
| VIKING SEATECH LIMITED | SC150861 | 24/01/2006 | 24/07/2009 | Dissolved |