| Company | Timeline | Status | |
| DJM (Air Pollution Control) Limited Director • Company Director | 9 Aug 1994←2 Months→10 Oct 1994 | Liquidation | |
| Enfield Management Limited Director • Manager | 19 Dec 1991←1 Day→20 Dec 1991 | Active | |
| Nicholson Jones Limited Director • Engineer | 24 May 1991←4 Months→27 Sep 1991 | Active | |
