| Company | Timeline | Status | |
| Blue Truffle Ltd Director • Director | 23 Feb 2015←3 Years→22 Nov 2018 | Active | |
| Connexion Microwave Technologies Limited Director • Accountant | 16 May 2014←4 Years→30 Oct 2018 | Active | |
| Castle Microwave Limited Director • Accountant | 25 May 2000←15 Years→31 Mar 2016 | Active | |
| Castle Microwave Systems Limited Director • Accountant | 25 May 2000←13 Years→16 May 2014 | Active | |
| Castle Group Holdings Limited Director • Accountant | 24 May 2000←13 Years→16 May 2014 | Active | |
| Alphamates Limited Director • Accountant | 24 May 2000←13 Years→16 May 2014 | Active | |
M. Press Limited Secretary • Unreported | 13 Apr 1992←27 Years→8 Apr 2019 | Dissolved | |
| Twyford Property Management Company Limited Secretary • Unreported | 31 Mar 1992←10 Years→31 Dec 2002 | Active | |
Finalhall Limited Director • Accountant | 14 Jun 1991←27 Years→4 Jun 2019 | Dissolved | |
