| Company | Timeline | Status | |
| Suffolk Architectural Heritage Trust Limited Director • Retired | 15 Oct 1997←10 Years→15 May 2008 | Dissolved | |
| Ipswich Building Preservation Trust Limited Director • Retired | 31 Oct 1992←16 Years→5 May 2009 | Active | |
| Ipswich Historic Churches Trust(The) Director • Retired | 27 Jun 1991←17 Years→5 Feb 2009 | Active | |
