| Company | Timeline | Status | |
| Derventium Properties Limited Director • Company Director | 3 Apr 2002←23 Years→Current | Active | |
| Derventium Limited Director • Company Director | 3 Apr 2002←23 Years→Current | Active | |
| Derventium Consultancy Limited Director • Company Director | 3 Apr 2002←23 Years→Current | Active | |
| Fern.Com Limited Director • Consultant | 10 Dec 1999←25 Years→Current | Active | |
Fern Computer Consultancy Limited Director • Computer Consultant | 1 Nov 1991←26 Years→15 Nov 2017 | Dissolved | |
| Curat Lex Limited Director • Software House Proprietor | 28 Jun 1991←3 Years→9 Dec 1994 | Active | |
