| Company | Timeline | Status | |
| Black Zero Property Limited Director • Director | 27 Feb 2015←10 Years→Current | Active | |
| The Robin Primrose Partnership Limited Director • Consulting Engineer | 30 Oct 2002←23 Years→Current | Active | |
Primrose Consultants International Limited Director • Consulting Engineer | 5 Apr 2002←14 Years→24 May 2016 | Dissolved | |
