| Company | Timeline | Status | |
| Twi Research Centre (Cymru) Limited Director • Unreported | 7 Nov 2003←17 Years→2 Feb 2021 | Dissolved | |
| Twi Technology Centre (Yorkshire) Limited Director • Unreported | 25 Oct 2002←18 Years→2 Feb 2021 | Active | |
| Twi Limited Director • Unreported | 23 Dec 1999←21 Years→19 Jan 2021 | Active | |
