| Company | Timeline | Status | |
| Twincon Limited Director • Director | 3 Nov 2010←9 Years→12 Oct 2020 | Active | |
| Bar None Rebar Limited Director • Director | 28 Jul 2009←16 Years→2 Sep 2025 | Dissolved | |
| Conteque Limited Director • Professor | 25 Feb 2003←18 Years→7 Sep 2021 | Dissolved | |
| Construction Innovation Limited Director • Civil Engineer | 21 Dec 2001←23 Years→Current | Active | |
| Construction Innovation Limited Secretary • University Lecturer | 21 Dec 2001←23 Years→Current | Active | |
