| Company | Timeline | Status | |
| Eduserv Director • Professor | 29 Apr 1999←1 Year 10 Months→7 Mar 2001 | Dissolved | |
| The Planning Exchange Foundation Director • Professor | 10 Dec 1993←2 Years→12 Dec 1995 | Active | |
Scientific Documentation Centre Limited Director • Professor | 11 May 1992←2 Years 8 Months→16 Jan 1995 | Dissolved | |
