| Company | Timeline | Status | |
| Sonorous Limited Secretary • Sound Mixer | 21 Dec 2005←19 Years→Current | Active | |
| Sonorous Limited Director • Sound Engineer | 31 Oct 2001←24 Years→Current | Active | |
| 40 Victoria Crescent Residents' Association Limited Secretary • Sound Engineer | 19 Mar 2001←3 Years→1 Aug 2004 | Active | |
