| Company | Timeline | Status | |
| Elementis Plc Director • Company Director | 4 Feb 2020←5 Years→Current | Active | |
| Oxford Nanopore Technologies Plc Director • Non-executive Director | 19 Sep 2019←6 Years→Current | Active | |
| Johnson Matthey Plc Director • None | 16 Nov 2017←8 Years→Current | Active | |
| NDC Technologies, INC Director • None | 20 Jan 2011←3 Years→1 Jan 2015 | Active | |
| Servomex Group Limited Director • Chief Executive Officer | 1 Feb 2008←3 Years→16 May 2011 | Active | |
Servomex Limited Director • Director | 31 Jan 2008←1 Month→7 Mar 2008 | Dissolved | |
Particle Measuring Systems Limited Director • Director | 31 Jan 2008←3 Years→16 Jun 2011 | Dissolved | |
| NDC Technologies Limited Director • Company Director | 31 Jan 2008←3 Years→29 Jun 2011 | Active | |
| Spectris Plc Director • Company Director | 11 Jan 2006←12 Years→28 Sep 2018 | Active | |
