| Company | Timeline | Status | |
| Tube Fins Limited Director • Company Director | 21 Nov 1997←9 Years→31 Aug 2007 | Dissolved | |
| Specialist Heat Exchangers Limited Director • Company Director | 21 Nov 1997←9 Years→31 Aug 2007 | Active | |
| H.A.Birch & Company Limited Director • Manging Director | 14 Dec 1993←7 Months→5 Aug 1994 | Dissolved | |
Cableform Limited Director • Director | 18 Jun 1993←1 Year 1 Month→5 Aug 1994 | Dissolved | |
| Ring Limited Director • Director | 18 Jun 1993←3 Years→30 Nov 1996 | Liquidation | |
