| Company | Timeline | Status | |
| Green Circle Concrete Limited Director • Company Director | 27 Nov 2008←16 Years→Current | Active | |
| Green Circle Aggregates Limited Director • Haulier | 27 Sep 2004←21 Years→Current | Active | |
| Green Circle UK Ltd Director • Director | 7 Jul 2003←22 Years→Current | Active | |
| Glen Harry Holdings Ltd Director • Transport Manager | 26 Mar 1997←28 Years→Current | Active | |
| Green Circle Sustainable Developments Ltd Director • Transport Manager | 19 Apr 1996←29 Years→Current | Active | |
| Glen Harry (Haulage) Limited Director • Transport Manager | 12 May 1991←34 Years→Current | Active | |
