| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ABBOT GROUP LIMITED | 00623285 | 18/11/2014 | 31/12/2021 | Silver |
| ABBOT HOLDINGS LIMITED | 02682916 | 18/11/2014 | 31/12/2021 | Bronze |
| ABBOT INVESTMENTS (NORTH AFRICA) LIMITED | 05246036 | 18/11/2014 | 31/12/2021 | One Red Flag |
| KCA DEUTAG (LAND RIG) LIMITED | 05659113 | 18/11/2014 | 31/12/2021 | One Red Flag |
| KCA DEUTAG CASPIAN LIMITED | 01877963 | 18/11/2014 | 31/12/2021 | Amber |
| KCA DEUTAG DRILLING GROUP LIMITED | 01059871 | 18/11/2014 | 31/12/2021 | One Red Flag |
| KCA DEUTAG DRILLING LIMITED | SC031961 | 18/11/2014 | 31/12/2021 | Silver |
| KCA DEUTAG DRILLING RIGS I LIMITED | SC426092 | 18/11/2014 | 31/12/2021 | Dissolved |
| KCA DEUTAG DRILLING SERVICES (UK) LIMITED | SC234542 | 18/11/2014 | 31/12/2021 | Insolvent |
| KCA DEUTAG ENTERPRISES LIMITED | 06715023 | 18/11/2014 | 31/12/2021 | One Red Flag |
| KCA DEUTAG FINANCE I LIMITED | SC423214 | 18/11/2014 | 31/12/2021 | Dissolved |
| KCA DEUTAG FINANCE II LIMITED | SC425933 | 18/11/2014 | 31/12/2021 | Dissolved |
| KCA DEUTAG LIMITED | SC349488 | 18/11/2014 | 31/12/2021 | One Red Flag |
| KCA DEUTAG OFFSHORE UK LIMITED | SC476932 | 18/11/2014 | 31/12/2021 | Strike Off |
| KCA DEUTAG RIG CO. LIMITED | 09923894 | 21/12/2015 | 31/12/2021 | Amber |
| KCA DEUTAG RIG DESIGN SERVICES LIMITED | SC421351 | 18/11/2014 | 31/12/2021 | Amber |
| KCA DEUTAG TECHNICAL SUPPORT LIMITED | SC219425 | 18/11/2014 | 31/12/2021 | Amber |
| KCA DEUTAG UK FINANCE PLC | 09015065 | 28/11/2014 | 31/12/2021 | Silver |
| KCA EUROPEAN HOLDINGS LIMITED | 04286946 | 18/11/2014 | 31/12/2021 | Silver |
| RDS ENERGY SOLUTIONS LIMITED | 02479484 | 18/11/2014 | 31/12/2021 | Amber |
| RIG DESIGN SERVICES HOLDINGS LIMITED | 04286931 | 18/11/2014 | 31/12/2021 | Amber |
| SET DRILLING COMPANY LIMITED | SC167498 | 18/11/2014 | 31/12/2021 | One Red Flag |