| Company | Timeline | Status | |
| Bulk Solid Solutions Limited Director • Unreported | 29 Feb 2016←9 Years→Current | Active | |
| William Curle Properties Limited Director • Unreported | 29 Feb 2016←9 Years→Current | Active | |
| William Curle Developments Limited Director • Engineer | 18 Apr 2002←23 Years→Current | Active | |
