| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CAMCO SOVIET SERVICES LIMITED | 02501634 | 09/10/2008 | Dissolved |
| CORLAX TRADING LIMITED | NI044310 | 01/05/2009 | Dissolved |
| DATA MARINE SYSTEMS (CASPIAN) LIMITED | SC178238 | 09/10/2008 | Dissolved |
| DOWELL SCHLUMBERGER STATISTICS LIMITED | 01404023 | 09/10/2008 | Dissolved |
| GEOQUEST HOLDINGS LIMITED | 01478324 | 09/10/2008 | Dissolved |
| GEOQUEST RESERVOIR TECHNOLOGIES LIMITED | 00956324 | 09/10/2008 | Dissolved |
| NI004145 LIMITED | NI004145 | 09/10/2008 | Dissolved |
| OPNET INTERNATIONAL LIMITED | SC163889 | 09/10/2008 | Dissolved |
| PHOENIX PETROLEUM SERVICES LIMITED | SC096734 | 09/10/2008 | Dissolved |
| REDA INDUSTRIES LIMITED | 01866033 | 09/10/2008 | Dissolved |
| SANGAMO WESTON LIMITED | 00174133 | 09/10/2008 | Dissolved |
| SCHLUMBERGER DOWELL LIMITED | 01051517 | 09/10/2008 | Dissolved |
| SCHLUMBERGER EUROPE TRUST COMPANY LIMITED | 05698109 | 01/05/2009 | Dissolved |
| SCHLUMBERGER TECHNOLOGIES LIMITED | 00985915 | 09/10/2008 | Dissolved |
| SENSA INTERNATIONAL LIMITED | 04124755 | 09/10/2008 | Dissolved |
| SENSOR DYNAMICS LIMITED | 02514520 | 09/10/2008 | Dissolved |
| Schlumberger Oilfield Uk Plc | NF004024 | 09/10/2008 | Dissolved |
| WESTERN UK LIMITED | 04000609 | 09/10/2008 | Dissolved |
| YORK SENSORS LIMITED | 01805862 | 09/10/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DIAMOULD LIMITED | 03797278 | 09/10/2008 | 14/08/2013 | Silver |
| Reservoir Performance Management Systems Ltd | 03810101 | 09/10/2008 | 31/01/2010 | Dissolved |
| SCHLUMBERGER COMMON INVESTMENT FUND LIMITED | 04429259 | 29/03/2012 | 18/04/2012 | Not Trading |
| SCHLUMBERGER TRUST COMPANY LIMITED | 02229322 | 29/03/2012 | 18/04/2012 | Not Trading |