| Company | Timeline | Status | |
| John Pryke & Partners Ltd Director • Chartered Engineer | 31 Jan 1992←4 Years→4 Jun 1996 | Dissolved | |
| Pynford South Limited Director • Chartered Engineer | 31 Jan 1991←33 Years→22 Oct 2024 | Dissolved | |
| Pynford North Limited Director • Chartered Engineer | 31 Jan 1991←30 Years→18 Jan 2022 | Dissolved | |
