| Company | Timeline | Status | |
| 3H Medical Limited Director • Nhs Consultant | 30 Jun 2008←17 Years→Current | Active | |
| Herbertson Anaesthetics Limited Secretary • Consultant Anaesthetist | 24 Apr 2002←23 Years→Current | Active | |
| Herbertson Anaesthetics Limited Director • Consultant Anaesthetist | 24 Apr 2002←23 Years→Current | Active | |
