| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| A V A (U K) Ltd | 01918660 | 18/06/2002 | Dissolved |
| D B Stratabit Ltd | SC101981 | 03/09/2002 | Dissolved |
| P E S Petroquip Ltd | SC095241 | 10/09/2002 | Dissolved |
| P E S Petroseal Ltd | SC104611 | 10/09/2002 | Dissolved |
| P E S Petroserv Ltd | SC094116 | 10/09/2002 | Dissolved |
| P E S Petrospec Ltd | SC094789 | 10/09/2002 | Dissolved |
| SPECIALIST SUBSEA SERVICES LIMITED | SC325021 | 29/03/2013 | Dissolved |
| SUBSEA 7 BV | SF000866 | 20/10/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| B.THORNTON LIMITED | 00351682 | 06/09/2002 | 30/06/2004 | Dissolved |
| BAROID CORPORATION | 01640428 | 18/06/2002 | 30/06/2004 | Dissolved |
| BAROID LIMITED | 00843209 | 06/09/2002 | 31/07/2003 | Dissolved |
| BUE SHIPS LIMITED | 01525618 | 19/07/2000 | 30/06/2004 | Gold |
| Bluefoil | SC117791 | 10/09/2002 | 30/06/2004 | Dissolved |
| British Underwater Engineering | 01401453 | 19/07/2000 | 30/06/2004 | Dissolved |
| D. Holmes | 02583104 | 03/09/2002 | 30/06/2004 | Dissolved |
| DDPS LIMITED | 01180619 | 06/09/2002 | 30/06/2004 | Dissolved |
| European Marine Contractors Ltd | 02150753 | 07/09/2000 | 02/01/2002 | Dissolved |
| GROVE - TK | 01129999 | 03/09/2002 | 30/06/2004 | Strike Off |
| Gearhart (United Kingdom) | SC074679 | 03/09/2002 | 30/06/2004 | Dissolved |
| HALLIBURTON ENERGY SERVICES LIMITED | SC231879 | 23/05/2002 | 30/06/2004 | Dissolved |
| HALLIBURTON GEODATA | 01141281 | 03/09/2002 | 30/06/2004 | Dissolved |
| HALLIBURTON HOLDINGS (NO. 3) | SC231927 | 24/05/2002 | 30/06/2004 | Dissolved |
| HALLIBURTON LIMITED | 00978424 | 18/06/2002 | 31/07/2003 | Gold |
| HALLIBURTON MANAGEMENT LIMITED | SC232078 | 28/05/2002 | 30/06/2004 | Bronze |
| HALLIBURTON MANUFACTURING AND SERVICES LIMITED | 00611451 | 05/09/2002 | 30/06/2004 | Silver |
| Halliburton Energy Development (North Sea), Inc. | FC020565 | 17/12/2003 | 30/06/2004 | Dissolved |
| Hgs | 02075516 | 03/09/2002 | 30/06/2004 | Dissolved |
| Holmes Blowers Ltd | 00816374 | 06/09/2002 | 30/06/2004 | Dissolved |
| KELLOGG BROWN & ROOT LIMITED | 00645125 | 01/03/2001 | 04/11/2002 | Gold |
| LCL KNIGHTSBRIDGE LIMITED | 00154862 | 06/09/2002 | 30/06/2004 | Not Trading |
| MEDITERRANEAN ENERGY SERVICES LIMITED | SC232077 | 28/05/2002 | 30/06/2004 | Silver |
| MONO GROUP | SC107956 | 31/05/2002 | 18/08/2003 | Dissolved |
| Nl Overseas Service Co | 01333824 | 06/09/2002 | 30/06/2004 | Dissolved |
| Numar Uk Ltd | SC144067 | 21/08/2002 | 30/06/2004 | Dissolved |
| OSCR 60321 LIMITED | SC050444 | 06/09/2002 | 30/06/2004 | Dissolved |
| OSCR 60695 LIMITED | 03002262 | 06/09/2002 | 30/06/2004 | Dissolved |
| PETROLEUM ENGINEERING SERVICES LIMITED | SC050835 | 19/07/2000 | 30/06/2004 | Dissolved |
| Pes Trustees Ltd | SC148014 | 24/06/2002 | 30/06/2004 | Dissolved |
| ROCKWATER HOLDINGS LIMITED | 01535559 | 19/07/2000 | 30/06/2004 | Dissolved |
| ROCKWATER LIMITED | 01268625 | 26/04/2000 | 30/06/2004 | Dissolved |
| SUB SEA OFFSHORE (HOLDINGS) LIMITED | 01724943 | 19/07/2000 | 30/06/2004 | Dissolved |
| SUB SEA OFFSHORE LIMITED | 01385206 | 26/04/2000 | 30/06/2004 | Gold |
| SUBSEA 7 (UK SERVICE COMPANY) LIMITED | SC228749 | 18/10/2004 | 14/01/2011 | Silver |
| Sperry-Sun (U K) Ltd | 01459631 | 06/09/2002 | 30/06/2004 | Dissolved |
| Subsea Hmb | SC068926 | 19/07/2000 | 30/06/2004 | Dissolved |
| T.K. Valve Holdings | 01864111 | 03/09/2002 | 30/06/2004 | Dissolved |
| TESEL HOLDINGS | 01383195 | 06/09/2002 | 30/06/2004 | Dissolved |
| THE UK OFFSHORE ENERGIES ASSOCIATION LIMITED | 01119804 | 19/04/2007 | 16/04/2008 | Silver |
| Vactor Industrial Pollution (U K) Ltd | 01323412 | 06/09/2002 | 30/06/2004 | Dissolved |
| WLTD LIMITED | 00196631 | 10/09/2002 | 30/06/2004 | Dissolved |
| Wltd North Sea Ltd | SC064046 | 06/09/2002 | 30/06/2004 | Dissolved |