| Company | Timeline | Status | |
| David Partridge Limited Director • Director | 24 Mar 2017←8 Years→Current | Active | |
| Simpson Associates Consulting Ltd Director • Director | 15 Jul 2011←3 Years→31 Mar 2015 | Active | |
| Simpson Associates Consulting Engineers LLP Designated LLP Member • Unreported | 31 Jan 2010←5 Years→31 Mar 2015 | Active | |
