| Company | Timeline | Status | |
| St Johns Investments Limited Secretary • Chartered Accountant | 3 Dec 2008←16 Years→Current | Active | |
| Hollybank (Securities) Limited Secretary • Chartered Accountant | 18 Nov 2008←16 Years→Current | Active | |
| Harris Management Limited Secretary • Chartered Accountant | 18 Nov 2008←15 Years→6 Aug 2024 | Dissolved | |
| The Harris Group Limited Secretary • Chartered Accountant | 18 Nov 2008←16 Years→Current | Active | |
| Vector Design Concepts Ltd Secretary • Chartered Accountant | 18 Nov 2008←16 Years→Current | Active | |
| Harris Project Management Limited Secretary • Chartered Accountant | 18 Nov 2008←16 Years→Current | Active | |
| The Harris Partnership Limited Secretary • Chartered Accountant | 18 Nov 2008←16 Years→Current | Active | |
| A K Harris Partnership Limited Secretary • Chartered Accountant | 18 Nov 2008←15 Years→6 Aug 2024 | Dissolved | |
