| Company | Timeline | Status | |
| Mason U.K. Limited Director • Director  | 18 Jul 1997←23 Years→1 Jan 2021  | Active  | |
| Acoustic Engineering Services (UK) Limited Secretary • Unreported  | 11 Oct 1996←9 Months→31 Jul 1997  | Dissolved  | |
| Acoustic Engineering Services (UK) Limited Director • Sales Engineer  | 1 Jan 1994←3 Years→1 Jul 1997  | Dissolved  | |
