| Company | Timeline | Status | |
| Surrey Archaeological Society Director • Unreported | 26 Nov 2016←11 Months→18 Nov 2017 | Active | |
| East London Parasol Company Ltd Director • Historian | 29 Nov 2015←10 Years→Current | Active | |
| Surrey Archaeological Society Director • Unreported | 26 Nov 2011←4 Years→5 Dec 2015 | Active | |
| British Record Society Limited Director • University Lecturer | 14 May 2008←17 Years→Current | Active | |
| Guildford Number Five Project Director • University Lecturer | 1 Apr 2002←1 Year 7 Months→1 Nov 2003 | Dissolved | |
