| Company | Timeline | Status | |
| Hold-Fast Radiator Valves Limited Director • Engineer | 27 Mar 2009←16 Years→Current | Active | |
G.R. Smithson & Company Limited Director • Manufacturing Director | 1 Aug 1997←2 Years 5 Months→11 Jan 2000 | Dissolved | |
| Civil Engineering Services Company Limited Director • Engineer | 1 Jan 1996←30 Years→Current | Active | |
| Crabtree Electrical Industries Limited Director • Director | 1 Jan 1994←2 Years 7 Months→29 Jul 1996 | Liquidation | |
