| Company | Timeline | Status | |
| The Piscatorial Society Limited Director • Opthalmic Surgeon | 18 Jan 2019←6 Years→Current | Active | |
| Piscatorial Society Holdings Limited Director • Opthalmologist | 16 Jan 2019←6 Years→Current | Active | |
The John KG Dart Practice Limited Director • Opthalmic Surgeon | 16 Mar 2010←7 Years→17 Oct 2017 | Dissolved | |
