| Company | Timeline | Status | |
Photopharmica Limited Director • University Professor | 20 Dec 2012←5 Years→12 Jun 2018 | Dissolved | |
| Yorkshire Cancer Research Director • Company Director/retired Professor | 11 Mar 2009←5 Years→25 Nov 2014 | Active | |
Photopharmica Research Limited Director • University Professor | 30 Apr 2003←12 Years→18 Aug 2015 | Dissolved | |
Photopharmica Leeds Limited Director • University Professor | 6 Mar 2001←14 Years→18 Aug 2015 | Dissolved | |
