| Company | Timeline | Status | |
| Robery Forensic Engineering Limited Director • Civil Engineering Consultant | 30 Jan 2015←10 Years→Current | Active | |
| Concrete Society Limited(The) Director • Civil Servant | 31 Jul 2003←6 Years→15 Jul 2010 | Active | |
| Aecom Limited Director • Civil Servant | 5 Mar 2002←1 Year 8 Months→15 Nov 2003 | Active | |
| Quality Scheme For Ready Mixed Concrete(The) Director • Director | 6 Oct 1999←4 Years→24 Feb 2004 | Active | |
Remco Systems Limited Director • Consulting Engineer | 7 Nov 1996←6 Years→1 Dec 2002 | Dissolved | |
