| Company | Timeline | Status | |
British Battery Manufacturers Association Limited Secretary • Pa Consultant | 17 May 2002←2 Years 10 Months→24 Mar 2005 | Dissolved | |
| Aircrete Limited Secretary • Unreported | 5 Jun 1997←6 Months→31 Dec 1997 | Active | |
| Aircrete Products Association Ltd Secretary • Unreported | 5 Jun 1997←6 Months→31 Dec 1997 | Active | |
