| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| STENA CARRON DRILLING LIMITED | 09593988 | 15/05/2015 | Silver |
| STENA CLYDE PNG LIMITED | 08213479 | 13/09/2012 | Dissolved |
| STENA DON DRILLING LIMITED | 11202361 | 13/02/2018 | Bronze |
| STENA DRILLING (MONEY PURCHASE) PENSION TRUSTEE LIMITED | 09985411 | 03/02/2016 | Dissolved |
| STENA DRILLING ASIA PACIFIC LIMITED | 07963581 | 24/02/2012 | Dissolved |
| STENA DRILLING HR LIMITED | 06020955 | 23/02/2018 | Bronze |
| STENA DRILLMAX CHARTERING LIMITED | 08438284 | 11/03/2013 | Dissolved |
| STENA DRILLMAX ICE LIMITED | 07878775 | 12/12/2011 | Amber |
| STENA EVOLUTION DRILLING LIMITED | 14550061 | 20/12/2022 | Silver |
| STENA EVOLUTION LIMITED | 14769642 | 13/10/2023 | Silver |
| STENA EVOLVE LIMITED | 13290359 | 25/03/2021 | Not Trading |
| STENA FORTH DRILLING LIMITED | 07843237 | 11/11/2011 | Bronze |
| STENA ICE CHARTERING LIMITED | 08052625 | 01/05/2012 | Dissolved |
| STENA OILFIELD CHARTERING LIMITED | 07843945 | 11/11/2011 | Dissolved |
| STENA OILFIELD SERVICES LIMITED | 07534881 | 18/02/2011 | Bronze |
| STENA SPEY CHARTERING LIMITED | 08304564 | 22/11/2012 | Bronze |
| STENA SPEY SERVICES LIMITED | 07843238 | 11/11/2011 | One Red Flag |
| STENA WELLS LTD. | 10290822 | 21/07/2016 | Strike Off |
| STENLOYAL LIMITED | SC136129 | 23/02/2018 | Not Trading |
| SUBSEA LEASING LIMITED | 02310248 | 23/02/2018 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| SMARTCHAINSERVICES LTD | 09831873 | 31/10/2021 | 18/09/2024 | One Red Flag |