| Company | Timeline | Status | |
| The Newcomen Society For The Study Of The History Of Engineering And Technology Director • Unreported | 1 Oct 2012←13 Years→Current | Active | |
| Greater London Industrial Archaeology Society Director • Unreported | 3 Jan 2006←19 Years→Current | Active | |
| The Newcomen Society For The Study Of The History Of Engineering And Technology Director • Consulting System Engineer | 21 Nov 1991←10 Months→14 Oct 1992 | Active | |
