| Company | Timeline | Status | |
Fluidlogic Testing & Controls Limited Director • Auto Engineer  | 31 Mar 2015←1 Year 9 Months→17 Jan 2017  | Dissolved  | |
| ZF Scotland Ltd Director • Company Director  | 31 Jul 2014←11 Years→Current  | Active  | |
| Automatic Choice Limited Director • Engineer  | 1 Mar 1998←3 Years→30 Jan 2002  | Active  | |
| John Mackie Automatic Transmissions Limited Director • Auto Engineer  | 26 Sep 1995←30 Years→Current  | Active  | |
