| Company | Timeline | Status | |
| The Intellectual Property Regulation Board Limited Director • Patent Attorney | 1 Oct 2016←6 Years→31 Jan 2023 | Active | |
| D Young & Co LLP Non-designated LLP Member • Unreported | 31 Mar 2010←8 Years→30 Sep 2018 | Active | |
D Young & Co Services Limited Director • Chartered Patent Attorney | 16 Mar 2010←7 Years→27 Feb 2018 | Dissolved | |
