| Company | Timeline | Status | |
| Gradebrook Services Limited Director • Director | 4 Mar 1999←26 Years→Current | Active | |
| Trunknet Limited Director • Unreported | 21 Mar 1995←30 Years→Current | Active | |
Crook And Son Coalmerchants Limited Director • Managing Director | 12 Oct 1994←2 Years 2 Months→2 Jan 1997 | Dissolved | |
| Commercial Radio Systems Limited Director • Unreported | 1 Jan 1970←55 Years→Current | Active | |
