| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Circuit Decommissioning Co Ltd | 04053085 | 10/11/2000 | Dissolved |
| DYVI OFFSHORE (UK) LIMITED | SC082066 | 30/12/1988 | Dissolved |
| Drilling Facilities Design Ltd | 01411385 | 31/05/1992 | Dissolved |
| Dyvi Catering (U K) Ltd | SC085151 | 24/10/1989 | Dissolved |
| Isthena Ltd | SC090046 | 31/12/1990 | Dissolved |
| METEOR INVESTMENTS LIMITED | SC375073 | 18/03/2010 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALBERT LXII LIMITED | SC245525 | 21/08/2009 | 29/11/2012 | Dissolved |
| CALTEC LIMITED | 04386277 | 24/04/2008 | 28/08/2008 | Strike Off |
| CASING TECHNOLOGIES GROUP LIMITED | SC328867 | 27/03/2008 | 16/05/2015 | Amber |
| DEUTAG LIMITED | 02161895 | 31/05/1992 | 30/03/1998 | Dissolved |
| DEUTAG UK LIMITED | 02279453 | 30/05/1992 | 30/03/1998 | Dissolved |
| EV PRIVATE EQUITY LTD | SC298915 | 18/04/2006 | 16/05/2015 | Gold |
| PRODRILL ENGINEERING LIMITED | 01656768 | 31/05/1992 | 30/03/1998 | Insolvent |
| STANWELL CONSULTING LIMITED | SC245526 | 21/08/2009 | 24/06/2014 | Dissolved |
| Smedvig 1989 Ltd | 01292277 | 31/05/1992 | 30/03/1998 | Dissolved |
| West Venture Ltd | 02279454 | 31/05/1992 | 30/03/1998 | Dissolved |