| Company | Timeline | Status | |
| Otto Simon Services Limited Director • Company Director | 1 Aug 2024←1 Year 4 Months→Current | Active | |
| Otto Simon Holdings Limited Director • Company Director | 9 Aug 2022←3 Years→Current | Active | |
| John M Henderson Machines Limited Director • Engineer | 19 Mar 2021←4 Years→Current | Liquidation | |
| Otto Simon Limited Director • Engineer | 27 Jul 2016←3 Years→28 Jan 2020 | Active | |
| Otto Simon Chemicals Limited Director • Company Director | 20 Apr 2016←3 Years→28 Jan 2020 | Active | |
