| Company | Timeline | Status | |
| Hedley DMB Limited Director • Engineer | 16 Jun 2010←2 Years 7 Months→25 Jan 2013 | Active | |
| Ecohydraulics Limited Director • Engineer | 20 Feb 2007←5 Years→25 Jan 2013 | Dissolved | |
| Hedley Connectors Limited Director • Engineer | 18 Dec 2002←10 Years→25 Jan 2013 | Dissolved | |
| Hedley Hydraulics (Holdings) Limited Director • Engineer | 2 Feb 1999←13 Years→25 Jan 2013 | Active | |
| Hedley Hydraulics Limited Director • Engineer | 31 Dec 1990←22 Years→25 Jan 2013 | Active | |
