| Company | Timeline | Status | |
| Damsolve Limited Director • Consultant And Expert Advisor | 7 Jul 2010←15 Years→Current | Active | |
| Black & Veatch International Ltd Director • Civil Engineer | 1 Dec 1997←7 Years→31 Aug 2005 | Active | |
| Black & Veatch Environment Limited Director • Civil Engineer | 1 Dec 1997←7 Years→31 Aug 2005 | Dissolved | |
| Jacobsgibb Ltd Director • Civil Engineer | 29 Nov 1996←1 Year→30 Nov 1997 | Active | |
