| Company | Timeline | Status | |
| Johnson Matthey Davy Technologies Limited Director • Engineer | 7 Jul 1991←5 Years→1 Mar 1997 | Active | |
| Johnson Matthey Davy Technologies International Limited Director • Engineer | 7 Jul 1991←5 Years→1 Mar 1997 | Dissolved | |
| Johnson Matthey Davy Technologies International Limited Director • Unreported | 1 Jan 1970←27 Years→1 Mar 1997 | Dissolved | |
