| Company | Timeline | Status | |
| Queniborough Hall Management Company Limited Director • Design Consultant | 1 Dec 2015←4 Years→6 Dec 2019 | Active | |
| Touchware Limited Director • Design Consultant | 19 Jul 1995←29 Years→15 Sep 2024 | Dissolved | |
| Touchware Limited Secretary • Design Consultant | 19 Jul 1995←29 Years→15 Sep 2024 | Dissolved | |
| Roberts Production Associates Limited Director • Designer | 18 Jun 1993←32 Years→Current | Active | |
| Roberts Production Associates Limited Secretary • Designer | 18 Jun 1993←32 Years→Current | Active | |
