| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BLACKWOOD SHELFCO (NO.3) LIMITED | SC417105 | 15/02/2012 | Dissolved |
| DRILL GEAR LIMITED | SC199756 | 22/09/1999 | Dissolved |
| JOHN LAWRIE METALS LIMITED | SC036725 | 01/05/1998 | Silver |
| OILTUBE LIMITED | SC159600 | 01/06/1998 | Not Trading |
| OILTUBE LIMITED | SC159600 | 08/05/2017 | Not Trading |
| SINCLAIR & HAY LIMITED | SC087881 | 01/06/1998 | Dissolved |
| SINCLAIR & HAY LIMITED | SC087881 | 08/02/2018 | Dissolved |
| THUNDERBIRD METALS LIMITED | SC453689 | 02/07/2013 | Dissolved |
| THUNDERBIRD PROPCO LIMITED | 14446385 | 13/06/2024 | Silver |
| THUNDERBIRD TUBULARS LIMITED | SC453690 | 02/07/2013 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| JOHN LAWRIE METALS LIMITED | SC036725 | 01/06/1998 | 11/07/2022 | Silver |
| JOHN LAWRIE TUBULARS LIMITED | SC598956 | 04/06/2018 | 07/11/2022 | Bronze |
| NORM SOLUTIONS LIMITED | SC191748 | 27/04/1999 | 15/06/2010 | One Red Flag |
| NORM SOLUTIONS LIMITED | SC191748 | 15/06/2010 | 10/03/2020 | One Red Flag |
| THUNDERBIRD TOPCO LIMITED | 11010221 | 17/11/2017 | 07/11/2022 | Silver |
| XODUS GROUP (HOLDINGS) LIMITED | SC377287 | 14/03/2011 | 26/05/2011 | Silver |