| Company | Timeline | Status | |
| P & I Design Limited Secretary • Computer Programmer  | 8 Jan 1996←25 Years→12 Nov 2021  | Active  | |
| P & I Design Limited Director • Computer Programmer  | 8 Jan 1996←25 Years→12 Nov 2021  | Active  | |
| P & I Software Limited Director • Computer Programmer  | 14 Jun 1991←30 Years→12 Nov 2021  | Active  | |
