| Company | Timeline | Status | |
| Keihan Systems Limited Director • Engineer | 10 Mar 2003←22 Years→Current | Active | |
| Ava-Matic (U.K.) Limited Director • Engineer | 31 Dec 1992←32 Years→Current | Active | |
| Ava-Matic (U.K.) Limited Secretary • Unreported | 31 Dec 1992←32 Years→Current | Active | |
