| Company | Timeline | Status | |
| Napier Power Limited Director • Company Director | 19 Nov 2020←6 Months→20 May 2021 | Dissolved | |
| Rapid Offsite Composite Construction Limited Director • Company Director | 19 Nov 2020←5 Months→17 May 2021 | Dissolved | |
| Napier Automotive Limited Director • Company Director | 1 Sep 2020←1 Month→19 Oct 2020 | Active | |
| Napier S&T Limited Director • Company Director | 1 Sep 2020←1 Month→20 Oct 2020 | Dissolved | |
| Napier Propulsion Limited Director • Company Director | 1 Aug 2020←2 Months→19 Oct 2020 | Active | |
| Napier Engines Limited Director • Company Director | 19 Apr 2020←1 Year→17 May 2021 | Dissolved | |
