| Company | Timeline | Status | |
| Ruby Country Limited Director • Engineer | 14 Jul 2003←22 Years→Current | Active | |
Ruby Riding Limited Director • Engineer | 10 Mar 2003←15 Years→22 May 2018 | Dissolved | |
| CMS I.T. Limited Director • Computer Engineer | 21 Apr 1999←26 Years→Current | Active | |
