| Company | Timeline | Status | |
| Tube Developments Limited Director • Director | 1 Mar 2013←12 Years→Current | Active | |
| Glasgow Animation Limited Secretary • Unreported | 30 Jun 2000←25 Years→Current | Active | |
Glasgow Records Limited Director • Company Director | 20 Mar 2000←16 Years→5 Apr 2016 | Dissolved | |
Glasgow Records Limited Secretary • Unreported | 28 Apr 1999←16 Years→5 Apr 2016 | Dissolved | |
| Hartmann Media Ltd Secretary • Unreported | 30 Jun 1997←28 Years→Current | Active | |
| MBT Limited Secretary • Company Secretary | 4 Mar 1996←29 Years→Current | Active | |
| Tube Developments (Glasgow) Limited Secretary • Unreported | 15 May 1993←32 Years→Current | Active | |
| MBT Limited Director • Company Accountant | 1 Oct 1992←33 Years→Current | Active | |
| MBT Limited Director • Ca | 1 Apr 1992←3 Months→30 Jun 1992 | Active | |
| Tube Developments Limited Secretary • Unreported | 1 Jan 1990←35 Years→Current | Active | |
