| Company | Timeline | Status | |
| Johnston Fuels Limited Director • Oil Distributor | 23 Jun 2009←7 Years→28 Sep 2016 | Active | |
| J Gas Limited Director • Oil Distributor | 20 Jan 2005←11 Years→28 Sep 2016 | Active | |
| Johnston Oils Limited Director • Oil Distributor | 16 Dec 1988←27 Years→28 Sep 2016 | Active | |
