| Company | Timeline | Status | |
| Diamond Roc Services (UK) Ltd Director • Doctor | 9 Sep 2015←5 Years→1 Mar 2021 | Dissolved | |
| SRDBP Limited Director • Doctor | 29 Jan 2015←6 Years→1 Mar 2021 | Dissolved | |
| Diamond Compliance & Quality Limited Director • Doctor | 16 Jan 2015←6 Years→1 Mar 2021 | Active | |
| Diamond PV Services Limited Director • Director | 1 Sep 2012←8 Years→1 Mar 2021 | Active | |
| Diamond It Services Limited Director • Director | 14 May 2008←7 Years→29 Mar 2016 | Active | |
| Diamond PV Services Limited Director • Regulatory Affairs | 15 Jun 2007←1 Year→1 Jul 2008 | Active | |
| Diamond Biopharm Limited Director • Regulatory Affairs | 24 May 2005←15 Years→1 Mar 2021 | Active | |
