| Company | Timeline | Status | |
| Tyack Employee Ownership Trust Limited Director • Unreported | 5 Dec 2022←3 Years→Current | Active | |
| Tyack Architects Limited Director • Architect | 1 Mar 2001←24 Years→Current | Active | |
| The Last Company Limited Secretary • Architect | 10 Mar 1994←9 Years→1 Jul 2003 | Active | |
| The Last Company Limited Director • Architect | 31 Dec 1991←34 Years→Current | Active | |
