| Company | Timeline | Status | |
| Washington Homes Limited Director • Unreported | 30 Sep 2013←12 Years→Current | Active | |
| Thomas Armstrong (Holdings) Limited Director • Unreported | 20 Jun 2007←18 Years→Current | Active | |
| Thomas Armstrong (Construction) Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
