| Company | Timeline | Status | |
| The Concurrent Computation Company Limited Secretary • University Lecturer | 4 Jul 2001←24 Years→Current | Active | |
| Aerosoft Limited Director • University Lecturer | 3 Jan 1992←33 Years→Current | Active | |
| Horus Systems Limited Director • University Lecturer | 14 Dec 1991←34 Years→Current | Active | |
| The Concurrent Computation Company Limited Director • University Lecturer | 4 Jul 1991←34 Years→Current | Active | |
