| Company | Timeline | Status | |
| BDF Partnership LLP Designated LLP Member • Unreported | 10 Dec 2012←12 Years→Current | Active | |
| BDF Plant Limited Director • Drilling Engineer | 28 Jul 2006←19 Years→Current | Active | |
| Autoreel Limited Director • Drilling Engineer | 15 Jul 2002←23 Years→Current | Active | |
| Stag Energy Limited Director • Engineer | 28 Apr 2000←25 Years→Current | Active | |
| B. B. Drilling Limited Director • Drilling Engineer | 8 Feb 1999←26 Years→Current | Active | |
| Boldon Drilling Limited Director • Drilling Engineer | 8 Feb 1999←26 Years→Current | Active | |
| British Drilling And Freezing Company Limited Director • Drilling Engineer | 1 Jan 1970←55 Years→Current | Active | |
| Drilling Holdings Unlimited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
