| Company | Timeline | Status | |
| Aero21 Europe Ltd Director • Aircraft Designer | 4 Aug 2025←2 Months→Current | Active | |
| Aero21 Property Ltd Director • Director | 6 Feb 2018←7 Years→Current | Active | |
| Aero21 Europe Ltd Director • Aircraft Engineer | 22 Dec 2011←13 Years→23 Apr 2025 | Active | |
| Aero 21 Ltd Director • Aircraft Engineer | 16 Jul 2003←22 Years→Current | Active | |
| Rock Engines Ltd Director • Design Engineer | 20 Sep 2000←24 Years→31 Dec 2024 | Dissolved | |
