| Company | Timeline | Status | |
| Mellor Architects Limited Director • Director | 23 Apr 2019←6 Years→Current | Active | |
| SB Properties (Preston) Ltd Director • Architect | 15 Sep 2009←14 Years→3 Sep 2024 | Dissolved | |
| Hanson Marston Mellor Limited Director • Architect | 5 Feb 2007←17 Years→3 Sep 2024 | Dissolved | |
| Mellor Architects (2019) Limited Director • Architect | 1 Nov 2004←19 Years→3 Sep 2024 | Dissolved | |
