| Company | Timeline | Status | |
| Tyack Employee Ownership Trust Limited Director • Architect | 5 Dec 2022←2 Years 11 Months→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←33 Years→Current | Active | |
