| Company | Timeline | Status | |
| Subterranea Britannica Director • Software Developer | 1 Jul 2025←3 Months→Current | Active | |
Theatron Limited Director • Technical Author | 14 Feb 1996←5 Years→8 Nov 2001 | Dissolved | |
Theatron Limited Secretary • Technical Author | 14 Feb 1996←5 Years→8 Nov 2001 | Dissolved | |
| Double Click Limited Director • Media Consultant | 31 Mar 1992←33 Years→Current | Active | |
| Double Click Limited Secretary • Media Consultant | 31 Mar 1992←33 Years→Current | Active | |
