| Company | Timeline | Status | |
| Bowley Limited Director • Engineer | 17 Nov 1998←9 Years→30 Jun 2008 | Dissolved | |
| Columbus McKinnon Corporation Limited Director • Engineer | 11 Oct 1991←7 Years→29 Jan 1999 | Active | |
| Columbus McKinnon Corporation Limited Director • Unreported | 1 Jan 1970←29 Years→29 Jan 1999 | Active | |
