| Company | Timeline | Status | |
| St.John's College Nottingham Limited Director • Professor In Chemistry | 30 Nov 2015←9 Years→22 Apr 2025 | Dissolved | |
Dioptica Scientific Limited Director • Lecturer | 1 May 2005←12 Years→19 Dec 2017 | Dissolved | |
Dioptica Scientific Limited Secretary • Unreported | 9 Dec 2004←3 Months→1 Apr 2005 | Dissolved | |
