| Company | Timeline | Status | |
| Sound On Sound Limited Director • Unreported | 10 Feb 1995←30 Years→Current | Active | |
| Sound On Sound Limited Secretary • Publisher | 10 Feb 1995←1 Month→8 Apr 1995 | Active | |
| Sos Publications Limited Secretary • Unreported | 11 Jul 1991←3 Years→14 Mar 1995 | Active | |
| Sos Publications Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
