| Company | Timeline | Status | |
| CRS Gas Solutions Limited Director • Director | 3 Sep 2018←7 Years→Current | Active | |
| Simmons Consulting Engineers Ltd Director • Director | 25 Feb 2015←10 Years→Current | Active | |
| S.A. Gas Engineers Limited Director • Gas Engineer | 24 Jun 2002←14 Years→16 Mar 2017 | Dissolved | |
