| Company | Timeline | Status | |
| Rhi Industrials Limited Director • Engineer | 6 Feb 2002←21 Years→2 May 2023 | Active | |
| R.H. Irving Construction Limited Director • Civil Eng | 11 Aug 1997←28 Years→Current | Active | |
| Claremont Properties (Newcastle) Limited Director • Civil Engineer | 31 Dec 1992←24 Years→22 Nov 2017 | Active | |
