| Company | Timeline | Status | |
| Farringdon Instruments Limited Director • Company Director | 24 Aug 1995←29 Years→15 Nov 2024 | Active | |
| 21ST Century Passenger Systems Limited Director • Engineer | 17 Aug 1992←5 Years→20 Oct 1997 | Active | |
| Second Base Systems Limited Director • Company Director | 16 May 1991←6 Years→20 Oct 1997 | Active | |
| Kognitio Limited Director • Engineer | 5 May 1991←6 Months→29 Nov 1991 | Dissolved | |
