| Company | Timeline | Status | |
| The Installation Assurance Authority Limited Director • Director | 9 Nov 2021←3 Years→26 Mar 2025 | Active | |
| The Solid Wall Insulation Guarantee Agency Director • None | 11 Jul 2011←13 Years→30 Mar 2025 | Active | |
| The Installation Assurance Authority Group Director • Unreported | 4 Oct 2009←15 Years→18 Feb 2025 | Active | |
