| Company | Timeline | Status | |
| Steed (UK) Limited Secretary • Unreported | 15 May 2007←3 Months→14 Aug 2007 | Active | |
| David Shawyer & Co Limited Director • Accountant | 1 Apr 2003←18 Years→4 Feb 2022 | Dissolved | |
| Drilling Fluid Management Systems Limited Secretary • Unreported | 26 Feb 2002←13 Years→20 Jul 2015 | Active | |
