| Company | Timeline | Status | |
| Enfield Management Limited Director • Engineer | 19 Dec 1991←1 Year 9 Months→1 Oct 1993 | Active | |
| Nicholson Jones Limited Director • Engineer | 24 May 1991←4 Months→27 Sep 1991 | Active | |
| Enfield Management Limited Director • Unreported | 1 Jan 1970←23 Years→1 Oct 1993 | Active | |
