| Company | Timeline | Status | |
| Greater London Industrial Archaeology Society Director • Engineering Historian | 3 Jan 2006←5 Years→1 May 2011 | Active | |
| The Newcomen Society For The Study Of The History Of Engineering And Technology Director • Unreported | 9 Nov 2005←2 Years 10 Months→30 Sep 2008 | Active | |
| The Newcomen Society For The Study Of The History Of Engineering And Technology Director • Unreported | 11 Oct 1995←7 Years→9 Oct 2002 | Active | |
| Kirkaldy Testing Museum Southwark Limited Director • Lecturer/writer | 29 Sep 1991←20 Years→31 Aug 2012 | Active | |
