| Company | Timeline | Status | |
| Chapelhall Industrial Bearings Limited Director • Director | 7 Sep 1990←6 Years→26 Mar 1997 | Active | |
| Adam Neilson Limited Director • Electrical Contractor | 23 Mar 1989←36 Years→Current | Active | |
| Robert Sandilands & Sons Limited Director • Electrical Contractor | 31 Dec 1988←37 Years→Current | Active | |
