| Company | Timeline | Status | |
| T.E.S. (Radio Solutions) Limited Director • Engineer | 16 Mar 2010←11 Years→29 Oct 2021 | Active | |
| T.E.S. Communication Solutions Limited Director • Engineer | 15 Mar 2010←11 Years→29 Oct 2021 | Active | |
| T.E.S. Limited Director • Engineer | 20 Sep 1991←30 Years→29 Oct 2021 | Active | |
