| Company | Timeline | Status | |
| Threshold Press Limited Director • Unreported | 21 Apr 1998←27 Years→Current | Active | |
Palgrave Macmillan Limited Director • Publisher | 1 Jun 1994←3 Years→30 Sep 1997 | Dissolved | |
Macmillan Elt Limited Director • Publisher | 27 Aug 1991←3 Years→20 Oct 1994 | Dissolved | |
