| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| C K s Drilling Fluids (U K) Ltd | 01856191 | 01/02/1991 | Dissolved |
| Centrilift Ltd | 01723224 | 16/03/1992 | Dissolved |
| Diamond Oil Well Drilling Co (U K) Ltd | SC085886 | 13/06/1989 | Dissolved |
| Eastman Christensen Ltd | 01793912 | 01/02/1992 | Dissolved |
| Eden Engineering Ltd | 01024037 | 01/01/1993 | Dissolved |
| Exploration Logging (Services) Ltd | 01217419 | 01/02/1992 | Dissolved |
| Exploration Logging (U K) Ltd | SC040447 | 13/02/1990 | Dissolved |
| Mesulect Ltd | 01094389 | 01/02/1992 | Dissolved |
| Scientific Software Intercomp (U K) Ltd | 01362946 | 07/06/1999 | Dissolved |
| Seaco Sales & Services (North Sea) Ltd | SC065727 | 13/06/1989 | Insolvent |
| Strathdon Chemicals Ltd | SC071832 | 20/10/1989 | Insolvent |
| Technical Chemical Manufacturing Co Ltd | 01127103 | 01/02/1991 | Dissolved |
| Technical Oilfield Services Limited | 02275393 | 01/02/1992 | Dissolved |
| Teleco Magna Ltd | 01404158 | 16/07/1992 | Dissolved |
| Teleco Oilfield Services (Europe) Ltd | SC039814 | 25/05/1992 | Dissolved |
| Teleco Well Navigation Limited | 01688839 | 16/07/1992 | Dissolved |
| Westronics Europe Ltd | 02022472 | 01/02/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| APOLLO SERVICES (UK) LIMITED | SC144519 | 14/02/2002 | 01/07/2002 | Dissolved |
| BAKER HUGHES (BJ) LTD. | SC092105 | 03/07/1998 | 30/06/2003 | Not Trading |
| BAKER HUGHES (BJ) LTD. | SC092105 | 13/01/1989 | 03/10/2003 | Not Trading |
| BAKER HUGHES (UK) LIMITED | 01092698 | 04/03/1999 | 03/10/2003 | Dissolved |
| BAKER HUGHES LIMITED | 01388658 | 01/02/1992 | 03/10/2003 | Amber |
| BAKER INTERNATIONAL LIMITED | 00727714 | 01/02/1992 | 03/10/2003 | Dissolved |
| BAKER OIL TOOLS (UNITED KINGDOM) LIMITED | 00855849 | 01/02/1991 | 03/10/2003 | Dissolved |
| BAKER PETROLITE LIMITED | 00551288 | 23/03/1998 | 03/10/2003 | Not Trading |
| BAKER PRODUCTION SERVICES (UK) LIMITED | 01388663 | 01/02/1991 | 03/10/2003 | Dissolved |
| BAKER SERVICE TOOLS LTD. | 00830953 | 05/01/1992 | 03/10/2003 | Dissolved |
| BFCC LIMITED | 01973055 | 18/11/1998 | 03/10/2003 | Dissolved |
| BH 04 LIMITED | 01522006 | 23/03/1998 | 03/10/2003 | Dissolved |
| BH 05 LIMITED | SC061862 | 03/07/1998 | 30/06/2003 | Dissolved |
| BH 05 LIMITED | SC061862 | 02/02/1998 | 03/10/2003 | Dissolved |
| BH EEC LTD. | 01444885 | 13/08/1999 | 03/10/2003 | Dissolved |
| CAMERON SYSTEMS LIMITED | 04291991 | 24/09/2001 | 31/10/2001 | Amber |
| EIMCO PROCESS EQUIPMENT LIMITED | 00408349 | 01/02/1992 | 03/10/2003 | Dissolved |
| HUGHES TOOL COMPANY LIMITED | 00534842 | 01/02/1992 | 03/10/2003 | Dissolved |
| NORTH SEA GEOPHYSICAL LIMITED | 03072258 | 06/07/1995 | 03/10/2003 | Dissolved |
| OCRE (SCOTLAND) LIMITED | SC139944 | 19/07/2001 | 03/10/2003 | Dissolved |
| ODI SERVICES LIMITED | SC128142 | 03/07/1998 | 30/06/2003 | Dissolved |
| ODI SERVICES LIMITED | SC128142 | 24/10/1997 | 03/10/2003 | Dissolved |
| PALOAK LIMITED | SC069075 | 23/05/2001 | 03/10/2003 | One Red Flag |
| R & B FILTRATION SYSTEMS LIMITED | 02340239 | 17/12/1997 | 03/10/2003 | Dissolved |
| SHAREWELL HORIZONTAL SYSTEMS LIMITED | SC109676 | 03/07/1998 | 30/06/2003 | Dissolved |
| SHAREWELL HORIZONTAL SYSTEMS LIMITED | SC109676 | 02/02/1998 | 03/10/2003 | Dissolved |
| TETRA TECHNOLOGIES U.K. LIMITED | 01774672 | 01/02/1991 | 30/03/1992 | Silver |
| TRI-STATE OIL TOOL (U.K.) LIMITED | 01174606 | 01/02/1991 | 03/10/2003 | Dissolved |
| TUBOSCOPE VETCO (U.K.) LIMITED | SC107988 | 15/05/1989 | 29/10/1991 | Dissolved |
| VORTOIL SEPARATION SYSTEMS LIMITED | 02650986 | 01/04/1996 | 03/10/2003 | Dissolved |
| Z. & S. (ASIA) LIMITED | SC163415 | 01/06/1999 | 03/10/2003 | Dissolved |
| Z. & S. CONSULTANTS LIMITED | 03424401 | 30/07/1999 | 03/10/2003 | Dissolved |
| Z. & S. GEOLOGY LIMITED | SC138977 | 30/07/1999 | 03/10/2003 | Dissolved |
| Z. & S. GEOSCIENCE LIMITED | 01724551 | 30/07/1999 | 03/10/2003 | Dissolved |