| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Coherence Technology (U K) Ltd | SC169403 | 18/12/2002 | Dissolved |
| Gaps Geological Consultants Ltd | 01676595 | 18/12/2002 | Dissolved |
| Pencor Ltd | 03368477 | 14/09/2001 | Dissolved |
| Stim Lab Coresystems Ltd | SC168618 | 29/06/2000 | Dissolved |
| Stim-Lab (U K) Ltd | SC137952 | 29/06/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CORE LABORATORIES (U.K.) IP CO. LTD. | 08772020 | 12/11/2013 | 31/08/2022 | Dissolved |
| CORE LABORATORIES (U.K.) LIMITED | 02924532 | 29/06/2000 | 31/08/2022 | Bronze |
| CORE LABORATORIES INTERESTS ONE LIMITED | 07586421 | 18/05/2011 | 31/08/2022 | One Red Flag |
| CORE LABORATORIES INTERESTS TWO LIMITED | 07586453 | 18/05/2011 | 31/08/2022 | One Red Flag |
| CORETON LIMITED | 01302137 | 18/12/2002 | 31/08/2022 | Not Trading |
| LABTON LIMITED | 02502923 | 29/06/2000 | 31/08/2022 | Not Trading |
| OWEN OIL TOOLS (U.K.) LIMITED | 03691954 | 24/01/2001 | 31/08/2022 | Amber |
| QUANTOIL LIMITED | 03021445 | 06/02/2012 | 31/08/2022 | Bronze |