| Company | Timeline | Status | |
| Gpe 1 Limited Director • Chief Executive | 30 Nov 2015←3 Years→31 Jan 2019 | Active | |
| Twi Certification Limited Director • Chief Executive | 17 Apr 2013←5 Years→31 Jan 2019 | Active | |
| Nsirc Limited Director • Chief Executive | 7 Feb 2013←5 Years→31 Jan 2019 | Active | |
| Sirf Limited Director • Chief Executive | 28 Nov 2012←6 Years→31 Jan 2019 | Active | |
Twi (Scots) Ltd Director • None | 8 Aug 2011←7 Years→31 Jan 2019 | Dissolved | |
| Airto Limited Director • Engineer | 1 Dec 2010←6 Years→25 Jan 2017 | Active | |
| Waverley Technology Limited Director • Chief Executive | 30 Sep 2010←8 Years→31 Jan 2019 | Active | |
| Twi Research Centre (Cymru) Limited Director • Chief Executive | 30 Sep 2010←8 Years→31 Jan 2019 | Dissolved | |
| Twi Technology Centre (Yorkshire) Limited Director • Chief Executive | 30 Sep 2010←8 Years→31 Jan 2019 | Active | |
| Twi Limited Director • Chief Executive | 30 Sep 2010←8 Years→31 Jan 2019 | Active | |
