| Company | Timeline | Status | |
| The Useful APP Company Limited Director • Consultant Engineer | 25 Oct 2005←1 Year 9 Months→23 Jul 2007 | Active | |
| CJS Accountancy Limited Director • Engineer | 10 Oct 2002←9 Years→31 Mar 2012 | Active | |
| CJS Accountancy Limited Secretary • Unreported | 3 Oct 2002←7 Days→10 Oct 2002 | Active | |
