| Company | Timeline | Status | |
| Poscara Limited Director • Company Director | 2 May 2013←12 Years→Current | Active | |
| By Hammer & Hand Limited Director • Physicist | 20 Dec 2004←18 Years→21 Mar 2023 | Dissolved | |
| Whittlewood Limited Director • Physicist | 20 Nov 2000←24 Years→Current | Active | |
| Silson Limited Director • Physicist | 7 Mar 1994←31 Years→Current | Active | |
