| Company | Timeline | Status | |
| Rutherford Group Ltd Director • Consultant | 3 Feb 2015←5 Years→21 Dec 2020 | Dissolved | |
Conata Ltd Director • Civil Engineer | 22 Jan 2001←18 Years→3 Sep 2019 | Dissolved | |
| Dal-Sterling Group Ltd Director • Engineer | 9 Apr 1987←13 Years→31 Jan 2001 | Active | |
