| Company | Timeline | Status | |
| Zest Medical Limited Director • Unreported | 11 Feb 2010←16 Years→Current | Active | |
Alexander James Healthcare Limited Director • Recruitment | 8 Feb 2008←3 Years→10 Apr 2011 | Dissolved | |
| Zest Optical Limited Director • Unreported | 30 Jan 2008←18 Years→Current | Active | |
| Zest Business Group Limited Director • Unreported | 4 May 2006←19 Years→Current | Active | |
