| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Sedco Forex Drilling Services Ltd | 00600998 | 25/09/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| PALOAK LIMITED | SC069075 | 17/05/2002 | 05/01/2009 | One Red Flag |
| R & B FALCON DEEPWATER (UK) LIMITED | 03900915 | 07/03/2005 | 01/07/2008 | Dissolved |
| R&B FALCON (CALEDONIA) LIMITED | 01591065 | 23/10/2007 | 01/07/2008 | Amber |
| R&B FALCON (U.K.) LIMITED | 01731764 | 23/10/2007 | 01/07/2008 | Amber |
| SCHLUMBERGER TRUST COMPANY LIMITED | 02229322 | 03/06/1988 | 13/03/2001 | Not Trading |
| SDS OFFSHORE LIMITED | 01822670 | 23/10/2007 | 01/07/2008 | Dissolved |
| TRANSOCEAN OFFSHORE DRILLING LIMITED | 02571878 | 07/09/1994 | 01/07/2008 | Dissolved |
| TRANSOCEAN SERVICES UK LIMITED | 02506922 | 23/10/2007 | 01/07/2008 | Dissolved |
| TRANSOCEAN UK LIMITED | 04017574 | 23/10/2007 | 01/07/2008 | Silver |
| TRITON PACIFIC LIMITED | 06038076 | 13/03/2007 | 01/07/2008 | Dissolved |
| UK DRILLING CONTRACTORS ASSOCIATION LIMITED | SC202909 | 02/02/2005 | 18/03/2008 | Dissolved |
| WILRIG OFFSHORE (UK) LIMITED | 01913362 | 23/10/2007 | 01/07/2008 | Dissolved |