| Company | Timeline | Status | |
| A V E Holdings Limited Director • Unreported | 26 Mar 2020←5 Years→Current | Active | |
| William Boulton Vibro Energy Limited Director • Unreported | 29 Dec 2015←9 Years→Current | Active | |
| William Boulton Limited Director • Unreported | 18 Feb 2014←11 Years→Current | Active | |
