| Company | Timeline | Status | |
| John Heyer (Packaging) Limited Director • Managing Director | 17 Oct 1991←6 Years→30 Apr 1998 | Dissolved | |
| JH Instrumentation Limited Director • Director | 19 Jul 1991←4 Years→14 May 1996 | Dissolved | |
JHP Realisations Limited Director • Director | 5 Jun 1991←6 Years→30 Apr 1998 | Dissolved | |
