| Company | Timeline | Status | |
| Aeternum Limited Director • Director | 10 Dec 2018←6 Years→Current | Active | |
| Aeternum Limited Director • Director | 10 Dec 2018←5 Years→14 Jun 2024 | Active | |
| Initiative For Interstellar Studies Limited Director • Consultant | 3 Oct 2015←4 Years→19 Dec 2019 | Active | |
| Orbital Memorial Ltd Director • Company Director | 13 Mar 2014←6 Years→8 May 2020 | Dissolved | |
| The British Interplanetary Society Director • Consultant | 6 Sep 2009←16 Years→Current | Active | |
| Cyberthinc Limited Director • Technical Consultant | 18 Sep 1996←29 Years→Current | Active | |
