| Company | Timeline | Status | |
| Dunedin Academic Press Limited Director • Publisher | 29 May 2007←16 Years→29 Nov 2023 | Dissolved | |
| Taxbriefs Limited Director • Director | 31 May 2000←9 Years→28 May 2010 | Dissolved | |
| Lefebvre Knowledge Limited Director • Publisher | 17 Jul 1998←2 Years 8 Months→4 Apr 2001 | Active | |
Friday Press Limited Director • Director | 10 Aug 1996←4 Months→31 Dec 1996 | Dissolved | |
Morecourt Limited Director • Company Director | 18 Jun 1996←6 Months→31 Dec 1996 | Dissolved | |
Un Acquisitions (Hong Kong) Limited Director • Publisher | 30 Jun 1994←6 Months→3 Jan 1995 | Dissolved | |
Un Financial Investments Limited Director • Publisher | 2 Feb 1993←2 Years 9 Months→13 Nov 1995 | Dissolved | |
Tolley Publishing Company Limited Director • Publishing Director | 2 Jul 1991←5 Years→31 Dec 1996 | Dissolved | |
