| Company | Timeline | Status | |
| Crescent Consultants Limited Secretary • University Lecturer | 17 May 1993←12 Years→10 Feb 2006 | Active | |
| Crescent Consultants Limited Director • University Lecturer | 18 Jul 1991←14 Years→10 Feb 2006 | Active | |
| Optio Systems Limited Director • Lecturer | 18 Jun 1991←9 Years→2 Mar 2001 | Active | |
| Optio Systems Limited Director • Unreported | 1 Jan 1970←31 Years→2 Mar 2001 | Active | |
