| Company | Timeline | Status | |
| Derek Horn Design Ltd Director • Designer | 8 May 2015←10 Years→15 Jul 2025 | Dissolved | |
| Derek Horn Design Ltd Director • Designer | 8 May 2015←9 Years→13 Apr 2025 | Dissolved | |
| SHW Design Ltd Director • Designer | 26 Nov 2002←12 Years→7 Apr 2015 | Active | |
| Berkeley Projects International Limited Director • Company Director | 26 Apr 1996←7 Years→14 Aug 2003 | Active | |
| Berkeley Projects UK Limited Director • Director | 26 Apr 1996←7 Years→14 Aug 2003 | Active | |
| Berkeley Food Equipment Limited Director • Company Director | 31 Mar 1991←12 Years→14 Aug 2003 | Active | |
