| Company | Timeline | Status | |
Ground Engineering Advisers Limited Director • Company Director | 15 Oct 2014←1 Year 11 Months→27 Sep 2016 | Dissolved | |
| Buro Happold Limited Director • Consulting Engineer | 1 Dec 2008←5 Years→30 Apr 2014 | Active | |
| BH Geoenvironmental Limited Director • Consulting Engineer | 1 Dec 2008←5 Years→30 Apr 2014 | Active | |
| Geotechnical Services Bureau Limited Director • Geotechnical Engineer | 17 Dec 1999←23 Years→18 Apr 2023 | Dissolved | |
| Association Of Geotechnical And Geoenvironmental Specialists Director • Civil Engineer | 22 Mar 1995←14 Years→18 Mar 2009 | Active | |
