| Company | Timeline | Status | |
| Northrop Grumman Properties Limited Director • M D-engine & Electronic Systems | 10 Dec 1992←3 Months→31 Mar 1993 | Active | |
| Society Of British Aerospace Companies (The) Director • Managing Director Lucas Aerospace Ltd | 13 Jul 1992←7 Months→3 Mar 1993 | Dissolved | |
