| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| SCOTTISH MARITIME MUSEUM TRUST | SC083702 | 02/04/2011 | Gold |
| SKL SERVICES LIMITED | SC211644 | 04/10/2000 | One Red Flag |
| SKL SERVICES LIMITED | SC211644 | 04/10/2000 | One Red Flag |
| THE SCOTTISH MARITIME TRUST | SC280396 | 20/03/2013 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CALEDONIAN MACBRAYNE LIMITED | SC308636 | 20/10/2006 | 19/12/2006 | Not Trading |
| CALEDONIAN MARITIME ASSETS LIMITED | SC001854 | 18/12/2000 | 08/11/2006 | Gold |
| CALMAC FERRIES LIMITED | SC302282 | 12/05/2006 | 30/06/2010 | Bronze |
| COWAL FERRIES LIMITED | SC306519 | 09/08/2006 | 30/06/2010 | Dissolved |
| DALES MARINE SERVICES (GREENOCK) LIMITED | SC105386 | 24/11/1988 | 11/11/1999 | Amber |
| DAVID MACBRAYNE HR (UK) LIMITED | SC282760 | 19/12/2005 | 30/06/2010 | Bronze |
| DAVID MACBRAYNE LIMITED | SC015304 | 18/12/2000 | 30/06/2010 | Silver |
| NORTHLINK FERRIES LIMITED | SC027370 | 18/12/2000 | 30/06/2010 | Not Trading |
| NORTHSTANDARD LIMITED | 00505456 | 29/06/2001 | 25/05/2010 | Gold |
| RATHLIN FERRIES LIMITED | SC306518 | 09/08/2006 | 30/06/2010 | Dissolved |
| THE GLASGOW HAWKS SPORTS TRUST | SC354744 | 09/02/2009 | 27/06/2012 | Silver |
| THE PADDLE STEAMER PRESERVATION SOCIETY | 02167853 | 01/10/2014 | 06/01/2019 | Silver |
| TRAVELINE SCOTLAND LIMITED | SC210532 | 21/05/2004 | 24/12/2010 | Gold |
| WAVERLEY EXCURSIONS LIMITED | SC070945 | 23/09/2010 | 13/12/2018 | Bronze |
| WAVERLEY STEAM NAVIGATION CO. LIMITED | SC050789 | 19/06/2014 | 13/12/2018 | Silver |