| Company | Timeline | Status | |
| International Ceramics Festival Ltd Director • Retired | 3 Oct 2020←5 Years→Current | Active | |
| International Potters Camp Limited Director • Director | 9 May 2017←6 Years→13 Feb 2024 | Dissolved | |
| Centre For Performance Research Limited Director • Lecturer | 1 Apr 2007←18 Years→Current | Active | |
| Marie Stewart (Antiques) Limited Director • Retired Professor | 31 Jul 1989←36 Years→Current | Active | |
