| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| B.THORNTON LIMITED | 00351682 | 30/06/2004 | Dissolved |
| Bluefoil | SC117791 | 30/06/2004 | Dissolved |
| British Underwater Engineering | 01401453 | 30/06/2004 | Dissolved |
| D. Holmes | 02583104 | 30/06/2004 | Dissolved |
| DDPS LIMITED | 01180619 | 30/06/2004 | Dissolved |
| HALLIBURTON GEODATA | 01141281 | 30/06/2004 | Dissolved |
| Halliburton Energy Development (North Sea), Inc. | FC020565 | 30/06/2004 | Dissolved |
| Hgs | 02075516 | 30/06/2004 | Dissolved |
| Holmes Blowers Ltd | 00816374 | 30/06/2004 | Dissolved |
| LCL KNIGHTSBRIDGE LIMITED | 00154862 | 30/06/2004 | Not Trading |
| Nl Overseas Service Co | 01333824 | 30/06/2004 | Dissolved |
| Numar Uk Ltd | SC144067 | 30/06/2004 | Dissolved |
| OSCR 60321 LIMITED | SC050444 | 30/06/2004 | Dissolved |
| Pes Trustees Ltd | SC148014 | 30/06/2004 | Dissolved |
| Sperry-Sun (U K) Ltd | 01459631 | 30/06/2004 | Dissolved |
| Subsea Hmb | SC068926 | 30/06/2004 | Dissolved |
| T.K. Valve Holdings | 01864111 | 30/06/2004 | Dissolved |
| Vactor Industrial Pollution (U K) Ltd | 01323412 | 30/06/2004 | Dissolved |
| Wltd North Sea Ltd | SC064046 | 30/06/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BAROID CORPORATION | 01640428 | 30/06/2004 | 01/07/2009 | Dissolved |
| BUE SHIPS LIMITED | 01525618 | 30/06/2004 | 01/07/2009 | Gold |
| GROVE - TK | 01129999 | 30/06/2004 | 01/07/2009 | Strike Off |
| Gearhart (United Kingdom) | SC074679 | 30/06/2004 | 01/07/2009 | Dissolved |
| HALLIBURTON ENERGY SERVICES LIMITED | SC231879 | 30/06/2004 | 31/03/2010 | Dissolved |
| HALLIBURTON HOLDINGS (NO. 3) | SC231927 | 30/06/2004 | 01/07/2009 | Dissolved |
| HALLIBURTON HOLDINGS (NO.4) LIMITED | SC342425 | 06/05/2008 | 01/07/2009 | Dissolved |
| HALLIBURTON MANAGEMENT LIMITED | SC232078 | 11/11/2002 | 31/03/2010 | Bronze |
| HALLIBURTON MANUFACTURING AND SERVICES LIMITED | 00611451 | 05/09/2002 | 31/03/2010 | Silver |
| HML TRUSTEES LIMITED | SC244164 | 25/02/2003 | 31/03/2010 | Not Trading |
| LANDMARK EAME, LTD. | 01937155 | 01/11/2005 | 31/03/2010 | Bronze |
| LEADING OFFSHORE ENERGY INDUSTRY COMPETITIVENESS | SC199292 | 15/05/2007 | 27/08/2010 | Amber |
| MEDITERRANEAN ENERGY SERVICES LIMITED | SC232077 | 30/06/2004 | 01/07/2009 | Silver |
| OSCR 60695 LIMITED | 03002262 | 30/06/2004 | 01/07/2009 | Dissolved |
| PETROLEUM ENGINEERING SERVICES LIMITED | SC050835 | 30/06/2004 | 01/07/2009 | Dissolved |
| PROTECH CENTREFORM INTERNATIONAL LIMITED | SC252217 | 05/06/2008 | 01/07/2009 | Silver |
| PSL ENERGY SERVICES HOLDINGS LIMITED | SC285264 | 31/07/2007 | 01/07/2009 | Dissolved |
| PSL ENERGY SERVICES LIMITED | SC243706 | 31/07/2007 | 01/07/2009 | Silver |
| ROCKWATER HOLDINGS LIMITED | 01535559 | 30/06/2004 | 01/07/2009 | Dissolved |
| ROCKWATER LIMITED | 01268625 | 30/06/2004 | 01/07/2009 | Dissolved |
| SUB SEA OFFSHORE (HOLDINGS) LIMITED | 01724943 | 30/06/2004 | 01/07/2009 | Dissolved |
| SUB SEA OFFSHORE LIMITED | 01385206 | 30/06/2004 | 01/07/2009 | Gold |
| TECHSOURCE RECRUITMENT LIMITED | SC276721 | 31/07/2007 | 01/07/2009 | Dissolved |
| TESEL HOLDINGS | 01383195 | 30/06/2004 | 01/07/2009 | Dissolved |
| THE UK OFFSHORE ENERGIES ASSOCIATION LIMITED | 01119804 | 19/04/2007 | 31/03/2010 | Bronze |
| WLTD LIMITED | 00196631 | 30/06/2004 | 01/07/2009 | Dissolved |