| Company | Timeline | Status | |
| Greenwich Trading Company Limited Director • Historic Buildings Advisor | 6 Oct 2011←3 Years→19 Mar 2015 | Active | |
| The Greenwich Foundation For The OLD Royal Naval College Director • Historic Buildings Advisor | 2 Jul 2007←7 Years→19 Mar 2015 | Active | |
Action For Market Towns Director • Architectural Historian | 1 May 1998←4 Years→17 Jan 2003 | Dissolved | |
| Barlaston Hall Trust Limited(The) Director • Architectural Historian | 20 Oct 1991←2 Years 2 Months→12 Jan 1994 | Active | |
| Heritage Of London Trust Limited(The) Director • Company Director | 12 Oct 1991←11 Years→23 Jan 2003 | Active | |
