| Company | Timeline | Status | |
| J & A Clarkson Ltd Director • Director | 18 Jul 2016←9 Years→Current | Active | |
| D. M. Clarkson Ltd Director • Haulage Contractor | 4 Mar 2003←16 Years→14 Sep 2019 | Active | |
| The Biggar Albion Foundation Limited Director • Haulage Contractor | 6 Apr 2002←12 Years→14 Dec 2014 | Active | |
