| Company | Timeline | Status | |
| BDF Plant Limited Secretary • Company Secretary | 28 Jul 2006←17 Years→30 Oct 2023 | Active | |
| Autoreel Limited Secretary • Unreported | 15 Jul 2002←21 Years→30 Oct 2023 | Active | |
| British Drilling And Freezing Company Limited Secretary • Accountant | 8 Feb 1999←24 Years→30 Oct 2023 | Active | |
| B. B. Drilling Limited Secretary • Accountant | 8 Feb 1999←24 Years→30 Oct 2023 | Active | |
| Boldon Drilling Limited Secretary • Accountant | 8 Feb 1999←24 Years→30 Oct 2023 | Active | |
| Drilling Holdings Unlimited Secretary • Accountant | 8 Feb 1999←24 Years→30 Oct 2023 | Active | |
