| Company | Timeline | Status | |
| Edward Cullinan Architects Ltd Director • Architect | 12 Nov 2012←13 Years→Current | Active | |
| The Red House Company Limited Director • Architect | 16 Mar 2007←17 Years→15 Nov 2024 | Active | |
| Cullinan Studio Ltd Director • Architect | 26 Nov 1991←28 Years→31 Jul 2020 | Active | |
