| Company | Timeline | Status | |
| Symetrica Limited Director • Director | 20 Nov 2002←21 Years→1 Jan 2024 | Active | |
| Symetrica Security Ltd Director • Research Physicist | 14 Mar 2002←21 Years→1 Jan 2024 | Active | |
| Safe New Futures Director • University Lecturer | 26 Jun 2001←5 Years→1 Jun 2007 | Active | |
