| Company | Timeline | Status | |
| Trevor Keith Langfield Ltd Director • Unreported | 9 Jun 2025←5 Months→Current | Active | |
| Highpower Systems UK Limited Director • Unreported | 4 May 2016←9 Years→Current | Active | |
Highpower Systems International Ltd Director • Engineer | 28 Feb 2003←14 Years→3 Oct 2017 | Dissolved | |
