| Company | Timeline | Status | |
| A & K Structural Limited Director • Director | 21 Oct 2013←7 Years→4 May 2021 | Dissolved | |
| John Sime & Associates Limited Director • Structral Engineer | 9 Jan 2007←6 Years→29 Nov 2013 | Active | |
| John Sime & Associates Limited Secretary • Structral Engineer | 9 Jan 2007←6 Years→29 Nov 2013 | Active | |
