| Company | Timeline | Status | |
N Johnston Mobile Incinerators Ltd Director • Director | 28 Oct 2016←3 Years→18 Feb 2020 | Dissolved | |
N Johnston Recovery Ltd Director • Director | 28 Oct 2016←3 Years→18 Feb 2020 | Dissolved | |
| N Johnston Plant & Groundworks Limited Director • Groundworker | 31 May 2016←9 Years→Current | Active | |
| N Johnston Plant & Groundworks Limited Director • Groundworker | 30 Jun 2014←1 Year→2 Jul 2015 | Active | |
