| Company | Timeline | Status | |
| Avantes (UK) Ltd Director • Scientific Adviser | 11 Nov 2011←1 Year 7 Months→30 Jun 2013 | Dissolved | |
Knight Photonics Limited Director • Scientific Adviser | 27 Sep 1991←27 Years→23 Jul 2019 | Dissolved | |
| Quantum Design UK And Ireland Limited Director • Scientific Adviser | 5 Apr 1991←4 Months→5 Aug 1991 | Active | |
