| Company | Timeline | Status | |
| TSK Consulting Ltd Director • Director | 16 Jun 2015←10 Years→Current | Active | |
| TSK Consulting Ltd Director • Director | 16 Jun 2015←9 Years→16 Jul 2024 | Active | |
| Tunstall Consultants Limited Director • Structural Engineer | 19 Oct 2010←15 Years→Current | Active | |
| The Tunstall Partnership Limited Director • Structural Engineer | 30 Nov 2009←11 Months→16 Nov 2010 | Active | |
