| Company | Timeline | Status | |
| Acacia Court Management Co. Limited Director • Theatre Engineer | 18 Oct 1994←31 Years→Current | Active | |
| System Control (UK) Limited Director • Theatre Technician | 9 Dec 1993←32 Years→Current | Active | |
| System Sound (UK) Limited Director • Theatre Technician | 9 Dec 1993←32 Years→Current | Active | |
| System Sound & Light Limited Director • Theatre Technician | 30 Apr 1991←34 Years→Current | Active | |
