| Company | Timeline | Status | |
| Immodulon Therapeutics Limited Director • Company Director | 20 May 2015←10 Years→Current | In Administration | |
| Troy Asset Management Limited Director • Corporate Advisor | 8 May 2012←11 Years→19 Mar 2024 | Active | |
| Simon Robertson Associates LLP Designated LLP Member • Unreported | 30 Mar 2005←20 Years→Current | Active | |
| Simon Robertson Limited Director • Investment Banker | 24 Mar 2005←16 Years→6 Apr 2021 | Dissolved | |
| The Eden Trust Director • Investment Banker | 16 Jul 2002←12 Years→31 Mar 2015 | Active | |
