| Company | Timeline | Status | |
| John Barber (Hertford) Limited Director • Company Secretary/director | 1 Dec 1999←25 Years→Current | Active | |
| John Barber (Hertford) Limited Director • Company Secretary/director | 1 Dec 1999←24 Years→15 Jul 2024 | Active | |
| John Barber (Hertford) Limited Secretary • Unreported | 20 Mar 1991←32 Years→11 Sep 2023 | Active | |
