| Company | Timeline | Status | |
| Johnston Rigging (Fife) Limited Director • Unreported | 10 Nov 2015←9 Years→Current | Active | |
| Johnston Assets Limited Director • Director | 20 Nov 2013←11 Years→Current | Active | |
| Johnston Rigging Holdings Limited Director • Unreported | 20 Nov 2013←11 Years→Current | Active | |
| Johnston Crane Hire Limited Director • Director | 20 Nov 2013←11 Years→Current | Active | |
ARC Energy Services Ltd Director • Director | 1 Nov 2013←1 Year 3 Months→13 Feb 2015 | Dissolved | |
