| Company | Timeline | Status | |
| Ontology-Partners Limited Director • Venture Capitalist | 31 Jan 2007←10 Years→2 Mar 2017 | Active | |
| Celtic House Investment Partners Limited Director • Venture Capitalist | 22 Jun 1999←1 Year 1 Month→1 Aug 2000 | Active | |
| Cavendish Kinetics Limited Director • Vice-president | 29 Apr 1998←7 Years→13 Apr 2006 | Dissolved | |
