| Company | Timeline | Status | |
| BT Gases Ltd Director • Director | 23 Apr 2012←10 Years→16 Aug 2022 | Dissolved | |
| Dolby Healthcare Limited Director • Unreported | 30 Jul 2010←15 Years→Current | Active | |
R.L Dolby (Services) Limited Director • Director | 30 Jul 2010←8 Years→15 Jan 2019 | Dissolved | |
| Dolby Medical Home Respiratory Care Limited Director • Unreported | 30 Jul 2010←15 Years→Current | Active | |
