| Company | Timeline | Status | |
| Resology Limited Director • Director | 10 Jun 2021←4 Years→Current | Active | |
| Roberts Manufacturing Limited Director • Company Director | 31 Aug 2017←8 Years→Current | Active | |
| Roberts Group Limited Director • Company Director | 15 Jun 2016←9 Years→Current | Active | |
| Restec Limited Director • Company Director | 18 Sep 2014←11 Years→Current | Active | |
Polyroof Management Services Limited Director • Company Director | 12 Apr 2013←6 Years→30 Jul 2019 | Dissolved | |
| Liquid Roofing And Waterproofing Association Director • Managing Director | 6 Dec 2000←20 Years→2 Mar 2021 | Active | |
| Polyroof Products Limited Secretary • Director-engineer | 5 Dec 1997←27 Years→Current | Active | |
| Polyroof Products Limited Director • Director-engineer | 1 Nov 1991←34 Years→Current | Active | |
