| Company | Timeline | Status | |
| Sake Sommelier Academy Limited Director • Unreported | 8 Sep 2011←14 Years→Current | Active | |
| Sake Sommelier Association Director • Unreported | 19 Aug 2008←17 Years→Current | Active | |
| Isake International Limited Director • Unreported | 24 Aug 2007←18 Years→Current | Active | |
| Isake International Limited Secretary • Unreported | 19 Jul 2007←18 Years→Current | Active | |
