| Company | Timeline | Status | |
| Priory Quay Management Company Limited Director • Retired | 8 Nov 2014←2 Years→19 Nov 2016 | Active | |
The British Neurological Research Trust Director • Surgeon | 6 Oct 2009←2 Years 1 Month→8 Nov 2011 | Dissolved | |
| The Tavistock Trust For Aphasia Director • Unreported | 24 Sep 2009←16 Years→Current | Active | |
| Priory Quay Management Company Limited Director • Retired | 8 Nov 2008←3 Years→3 Nov 2012 | Active | |
Hillway Surgical Limited Director • Med Practitioner | 31 Oct 2002←2 Months→13 Jan 2003 | Dissolved | |
| Barrow Foundation (UK) Director • Consultant Neurosurgeon | 12 May 1998←4 Months→15 Sep 1998 | Active | |
| Voice Drive Limited Director • Neurosurgeon | 18 Mar 1998←1 Year 1 Month→1 May 1999 | Active | |
| Voice Drive Limited Secretary • Neurosurgeon | 18 Mar 1998←1 Year 1 Month→1 May 1999 | Active | |
| Priory Surgical Consultancy Limited Director • Director | 5 Feb 1992←30 Years→10 May 2022 | Dissolved | |
| The National Hospital For Neurology And Neurosurgery Development Foundation Director • Unreported | 1 Jan 1970←28 Years→16 Apr 1998 | Active | |
