| Company | Timeline | Status | |
| Quinquennial Architecture Limited Director • Unreported | 5 Oct 2020←5 Years→Current | Active | |
| Quinquennial Inspections Limited Director • Unreported | 30 Sep 2015←10 Years→Current | Active | |
| Architectural Co-Operative Ltd Director • Unreported | 23 Jul 2010←15 Years→Current | Active | |
