| Company | Timeline | Status | |
| Schapiro Limited Director • Engineer | 8 Aug 2005←20 Years→Current | Active | |
| Schapiro Limited Secretary • Unreported | 8 Aug 2005←20 Years→Current | Active | |
| Begney Limited Director • Engineer | 12 Nov 1999←25 Years→Current | Active | |
| Begney Limited Secretary • Unreported | 28 Oct 1999←26 Years→Current | Active | |
| Boilerhouse Services Limited Director • Engineer | 15 Sep 1999←26 Years→Current | Active | |
| Boilerhouse Services Limited Secretary • Unreported | 10 Nov 1977←39 Years→24 Jul 2017 | Active | |
