| Company | Timeline | Status | |
| GBL Sharepoint Consultancy Limited Director • Director | 8 Sep 2010←10 Years→27 Oct 2020 | Dissolved | |
| Landsdowne Management Co. Limited Director • Software Engineer | 10 Apr 2008←2 Months→25 Jun 2008 | Active | |
| GBL Software Limited Director • Director | 2 Dec 2004←20 Years→Current | Active | |
| Landsdowne Management Co. Limited Director • It Consultant | 24 Apr 2002←5 Years→4 Apr 2008 | Active | |
