| Company | Timeline | Status | |
| The Technical Theatre Preservation Group Limited Secretary • Unreported | 24 Mar 1992←1 Year 3 Months→23 Jun 1993 | Active | |
| The Technical Theatre Preservation Group Limited Director • Retired | 24 Apr 1991←8 Years→11 Jan 2000 | Active | |
| The Technical Theatre Preservation Group Limited Director • Unreported | 1 Jan 1970←30 Years→11 Jan 2000 | Active | |
