| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| K.S.M. ENGINEERING LIMITED | SC127109 | 07/09/1991 | Silver |
| STS ANGOLA LIMITED | SC380710 | 06/10/2010 | Dissolved |
| TUSCAN ENERGY (CRAGGANMORE) LIMITED | SC251215 | 16/06/2003 | Dissolved |
| TUSCAN ENERGY (SCOTLAND) LIMITED | SC210076 | 11/08/2000 | Dissolved |
| TUSCAN ENERGY GROUP LIMITED | SC224143 | 11/10/2001 | Dissolved |
| TUSCAN ENERGY LIMITED | SC224142 | 11/10/2001 | Dissolved |
| Tuscan Energy Ltd | SC207296 | 15/05/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| 01155247 LTD | 01155247 | 13/05/2011 | 30/06/2013 | Dissolved |
| AAR 2007 LIMITED | SC315838 | 13/05/2011 | 30/06/2013 | Dissolved |
| ATLANTIC FLOATING PRODUCTION LIMITED | SC164269 | 22/07/1996 | 31/07/2000 | Dissolved |
| ATLANTIC RESOURCING LIMITED | SC172880 | 01/06/1999 | 31/07/2000 | Amber |
| Atlantic Consulting Ltd | SC171653 | 17/02/1997 | 28/02/1998 | Dissolved |
| Atlantic Power & Gas Engineering Ltd | 01296337 | 01/06/1999 | 31/07/2000 | Dissolved |
| Atlantic Power Ltd | SC168757 | 17/02/1997 | 28/02/1998 | Dissolved |
| DURASTIC LIMITED | 03050638 | 15/01/2010 | 14/11/2011 | Insolvent |
| ELECTROTHERMAL LIMITED | 01686716 | 13/05/2011 | 30/06/2013 | Dissolved |
| FALLSKY LIMITED | SC172766 | 13/05/2011 | 30/06/2013 | Dissolved |
| IICORR LIMITED | SC399312 | 30/03/2012 | 30/06/2013 | Dissolved |
| International Maintenance Management Ltd | 03041694 | 01/06/1999 | 31/07/2000 | Dissolved |
| JOINT VENTURE INTERNATIONAL LIMITED | SC131377 | 29/06/1999 | 31/07/2000 | Dissolved |
| MACGREGOR ENERGY SERVICES LIMITED | SC093962 | 13/05/2011 | 30/06/2013 | Dissolved |
| MACGREGOR SERVICES LIMITED | SC090880 | 13/05/2011 | 30/06/2013 | Dissolved |
| OFFSHORE CONTRACTORS ASSOCIATION | SC170910 | 26/11/2009 | 01/07/2013 | Dissolved |
| PETROFAC FACILITIES MANAGEMENT GROUP LIMITED | SC109608 | 01/06/1999 | 31/07/2000 | Not Trading |
| PETROFAC FACILITIES MANAGEMENT LIMITED | SC075047 | 30/01/1997 | 31/07/2000 | One Red Flag |
| PLANT ASSET MANAGEMENT LIMITED | SC136313 | 01/06/1999 | 31/07/2000 | Dissolved |
| RIGBLAST COLD CUTTING SERVICES LIMITED | 01785260 | 13/05/2011 | 30/06/2013 | Dissolved |
| RIGBLAST ENERGY SERVICES LIMITED | SC124924 | 13/05/2011 | 30/06/2013 | Strike Off |
| RIGBLAST GROUP LIMITED | SC272960 | 13/05/2011 | 30/06/2013 | Dissolved |
| RIGBLAST PLANT LIMITED | SC085147 | 13/05/2011 | 30/06/2013 | Dissolved |
| SORT 4 LIMITED | SC235261 | 11/12/2009 | 30/06/2013 | Dissolved |
| STORK QUALITY SERVICES (STS) LIMITED | SC327890 | 11/11/2009 | 30/06/2013 | Dissolved |
| STORK TECHNICAL SERVICES (HOLDINGS) LIMITED | SC272959 | 11/11/2009 | 30/06/2013 | Silver |
| STORK TECHNICAL SERVICES INTERNATIONAL LIMITED | SC296411 | 11/11/2009 | 30/06/2013 | One Red Flag |
| STORK TECHNICAL SERVICES UK LIMITED | SC161193 | 11/11/2009 | 30/06/2013 | Gold |
| STORK TECHNICAL SERVICES UK LIMITED | SC250015 | 30/03/2012 | 30/06/2013 | Dissolved |
| STORK TS UK LIMITED | SC395977 | 25/05/2011 | 28/01/2013 | Dissolved |
| STS (RBG) (1001) LIMITED | SC152300 | 13/05/2011 | 30/06/2013 | Dissolved |
| STS (RBG) (1002) LIMITED | SC091650 | 13/05/2011 | 30/06/2013 | Dissolved |
| SUBSPECTION LIMITED | 01581858 | 30/03/2012 | 30/06/2013 | Dissolved |
| WEB RIGGING SERVICES LTD. | SC301839 | 01/11/2014 | 30/10/2015 | Insolvent |