| Company | Timeline | Status | |
| Duthie Developments Limited Director • Engineer | 16 Feb 2022←3 Years→Current | Active | |
| Elaine Properties (International) Limited Director • Chartered Engineer | 8 Oct 2012←13 Years→Current | Active | |
| The Duthie Consultancy Limited Director • Engineer | 21 Apr 2011←14 Years→Current | Active | |
