| Company | Timeline | Status | |
| Cross Academe Limited Director • Publisher | 27 Feb 2009←16 Years→11 Mar 2025 | Dissolved | |
| Cross Academe Limited Director • Publisher | 27 Feb 2009←15 Years→15 Nov 2024 | Dissolved | |
| Apsley Court (Oxford) Management Company Limited Director • Publisher | 26 Jul 1991←1 Month→2 Sep 1991 | Active | |
| Philip Allan Publishers Limited Director • Publishing Director | 19 Jul 1991←15 Years→13 Jun 2007 | Dissolved | |
