| Company | Timeline | Status | |
| Heaton Green Containment Limited Director • Dust Control | 10 Sep 2004←15 Years→19 May 2020 | Active | |
| Plevcrest Limited Secretary • Engineer | 31 Dec 1996←29 Years→Current | Active | |
| Plevcrest Limited Director • Engineer | 29 Jan 1992←34 Years→Current | Active | |
| Heaton Green Dust Control Limited Director • Engineer | 20 Jun 1991←34 Years→Current | Active | |
