| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| QUAIROS LIMITED | SC368993 | 03/03/2010 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ASCO DECOMMISSIONING LIMITED | SC180242 | 03/10/2012 | 08/04/2014 | Amber |
| ASCO FREIGHT MANAGEMENT LIMITED | SC202171 | 03/10/2012 | 08/04/2014 | Amber |
| ASCO MARINE LIMITED | SC316087 | 28/05/2012 | 08/04/2014 | Amber |
| ASCO UK LIMITED | SC029934 | 28/05/2012 | 08/04/2014 | Gold |
| C-MAR SERVICES (UK) LIMITED | 02428413 | 30/06/2008 | 26/02/2010 | Dissolved |
| DECOM MISSION | SC357092 | 09/10/2012 | 07/10/2014 | Bronze |
| NORTH SEA LIFTING LIMITED | SC117356 | 28/06/2012 | 08/04/2014 | Amber |
| OBM LIMITED | SC391970 | 03/10/2012 | 08/04/2014 | Amber |
| SCOTTISH WATER HORIZONS LIMITED | SC264806 | 01/08/2014 | 24/04/2017 | Silver |
| SCRABSTER PORT SERVICES LIMITED | SC172882 | 03/10/2012 | 08/04/2014 | Dissolved |
| SELETAR SHIPPING LIMITED | SC348161 | 28/05/2012 | 08/04/2014 | One Red Flag |