| Company | Timeline | Status | |
| Westrare Limited Director • Retired Architect | 6 Sep 2013←12 Years→Current | Active | |
| The Cass Foundation Limited Director • Architect | 2 Jan 2013←12 Years→Current | Active | |
The Jewel On The Hill Buildings Preservation Trust Limited Director • Architect | 3 Jul 2012←6 Years→4 Sep 2018 | Dissolved | |
| Heritage Works Buildings Preservation Trust Limited Director • Architect | 14 Nov 2007←14 Years→31 Dec 2021 | Active | |
| Cass Associates (Liverpool) LLP Designated LLP Member • Unreported | 20 Feb 2003←10 Years→12 Dec 2013 | Dissolved | |
| CPL Management Limited Director • Landscape Architect | 14 Jan 2000←25 Years→Current | Active | |
| Land Regeneration Management Limited Director • Architect | 20 Dec 1996←1 Year 3 Months→27 Mar 1998 | Active | |
