| Company | Timeline | Status | |
| Cryogenic Industrial Magnetics Limited Director • Director | 12 Jun 1998←27 Years→Current | Active | |
| Cryogenic Limited Director • Physicist | 1 Nov 1992←33 Years→Current | Active | |
| 72 Lexham Gardens (1983) Limited Director • Physicist | 31 Dec 1991←33 Years→Current | Active | |
