| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Associated British Power Engineering Ltd | 00469490 | 20/05/1992 | Dissolved |
| BROOKES & GATEHOUSE LIMITED | 15450733 | 29/01/2024 | Amber |
| Bnt Marine Ltd | 05637981 | 12/12/2007 | Dissolved |
| Bnt Marine Ltd | 05637981 | 06/09/2007 | Dissolved |
| Dawson-Keith Electric Ltd | 00936898 | 20/05/1992 | Dissolved |
| Dawson-Keith Service Ltd | 00936674 | 20/05/1992 | Dissolved |
| Navico Ltd | 01720184 | 20/11/2007 | Dissolved |
| Navico Ltd | 01720184 | 20/11/2007 | Dissolved |
| Navico Margate Ltd | 01781900 | 20/11/2007 | Dissolved |
| Navico Margate Ltd | 01781900 | 20/11/2007 | Dissolved |
| Sailmath Ltd | 01825557 | 14/10/2004 | Dissolved |
| Simtek Ltd | 03107017 | 20/11/2007 | Dissolved |
| Simtek Ltd | 03107017 | 20/11/2007 | Dissolved |
| VAN IPEREN MEDIA LIMITED | 06863225 | 30/03/2009 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BROOKES & GATEHOUSE LIMITED | 06481847 | 30/04/2008 | 31/01/2014 | Dissolved |
| DAWSON-KEITH LIMITED | 01013692 | 18/05/1992 | 24/05/1996 | Dissolved |
| DAWSON-KEITH LIMITED | 01013692 | 01/07/1993 | 06/07/1996 | Dissolved |
| GARDNER PARTS LIMITED | 01971135 | 11/01/1999 | 16/02/2000 | Insolvent |
| KONGSBERG MARITIME HOLDING LIMITED | 01372595 | 28/01/2005 | 18/10/2005 | Dissolved |
| MARINE LEASING LIMITED | 02231057 | 28/01/2005 | 12/07/2007 | Silver |
| NAVICO UK LIMITED | 00565631 | 04/08/2004 | 31/01/2014 | Bronze |
| NAVICO UK LIMITED | 00565631 | 07/02/2008 | 31/01/2014 | Bronze |