| Company | Timeline | Status | |
| Surrey Opera Director • Engineering Design Consultant  | 26 Jan 2011←12 Years→23 Jan 2023  | Active  | |
| Clyde Hall (Addiscombe) Limited Director • Unreported  | 18 Nov 2010←14 Years→Current  | Active  | |
| Clyde Hall (Addiscombe) Limited Director • None  | 18 Nov 2010←12 Years→23 Jan 2023  | Active  | |
| Maxwell Systems Limited Director • Electronic & Software Design Consultant  | 16 Apr 2007←14 Years→22 Mar 2022  | Dissolved  | |
| Surrey Opera Secretary • Unreported  | 1 Oct 1999←3 Years→25 Nov 2002  | Active  | |
