| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Greyace Ltd | 03458319 | 03/11/1997 | Dissolved |
| Toplis & Harding (U K) Ltd | 01576561 | 14/05/1992 | Dissolved |
| Toplis & Harding Plc | 02524829 | 06/07/1992 | Dissolved |
| Triffland Ltd | 06047588 | 01/02/2007 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Innovative Technology Associates Ltd | 03458509 | 28/11/1997 | 19/10/1998 | Dissolved |
| SAILPORT PLC | 01422153 | 06/11/1992 | 07/09/2013 | Gold |
| SOLEMEASURE LIMITED | 02092140 | 06/11/1992 | 07/09/2013 | Not Trading |
| THE MAYFLOWER INTERNATIONAL YACHT MARINA LIMITED | 03439003 | 24/09/1997 | 29/05/1998 | Not Trading |
| THE PLYMOUTH INTERNATIONAL MARINA LIMITED | 03355435 | 07/10/2006 | 07/09/2013 | Not Trading |
| THE PLYMOUTH MARINA LIMITED | 03355354 | 07/10/2006 | 07/09/2013 | Not Trading |
| THE PLYMOUTH YACHT MARINA LIMITED | 03439792 | 07/10/2006 | 07/09/2013 | Not Trading |
| THE SOCIETY FOR NAUTICAL RESEARCH | 02848095 | 01/07/1998 | 30/06/2002 | Silver |
| The Toplis & Harding Group Ltd | 01603361 | 14/05/1991 | 12/01/1993 | Dissolved |