| Company | Timeline | Status | |
| RJ Ground Engineering Ltd Director • Professional Engineer | 21 Nov 2022←2 Years 11 Months→Current | Active | |
| HB Geotechnical Engineering Ltd Director • Professional Engineer | 3 Oct 2022←3 Years→Current | Active | |
| AST Equity Limited Director • Engineering Consultant | 30 Sep 2022←3 Years→Current | Active | |
| HB Geotechnical Services Ltd Director • Professional Engineer | 14 Oct 2019←6 Years→Current | Active | |
