| Company | Timeline | Status | |
| Specialized Plant Limited Director • Director | 19 Aug 2016←6 Years→18 Sep 2022 | Dissolved | |
| Robert Stevens & Sons Fabrication Limited Director • Director | 27 Jun 2012←10 Years→18 Sep 2022 | Active | |
| Robert Stevens & Sons Limited Secretary • Unreported | 31 Jul 2009←13 Years→18 Sep 2022 | Active | |
| Robert Stevens & Sons Limited Director • Engineer | 28 Jun 1991←31 Years→18 Sep 2022 | Active | |
