| Company | Timeline | Status | |
| John W Groombridge Motorcycles Limited Director • Company Director | 8 Feb 2006←14 Years→5 Aug 2020 | Liquidation | |
| J.W Groombridge Motorcycles (Training) Limited Director • Director | 22 May 2003←17 Years→5 Aug 2020 | Dissolved | |
| Hampstead Management Limited Director • Director | 7 Dec 1998←23 Years→1 Sep 2022 | Liquidation | |
