| Company | Timeline | Status | |
| JVC Retail Limited Director • Retired | 19 May 2017←8 Years→Current | Active | |
| Eboracum Roman Centre Limited Director • Retired | 19 May 2017←8 Years→Current | Active | |
| York Archaeological Trust For Excavation And Research Limited Director • Retired | 19 May 2017←8 Years→Current | Active | |
| JVC Retail Limited Director • Retired | 19 May 2017←7 Years→27 Sep 2024 | Active | |
| Eboracum Roman Centre Limited Director • Retired | 19 May 2017←7 Years→27 Sep 2024 | Active | |
| York Archaeological Trust For Excavation And Research Limited Director • Retired | 19 May 2017←7 Years→27 Sep 2024 | Active | |
| Avacta Group Trustee Limited Director • Director | 21 Nov 2011←4 Years→11 Jan 2016 | Active | |
| Y.C.R. Scientific Developments Limited Director • University Professor | 9 Sep 2010←6 Years→22 Sep 2016 | Active | |
| Y.C.R. Promotions Limited Director • University Professor | 9 Sep 2010←6 Years→22 Sep 2016 | Active | |
Yorktest Group Limited Director • Professor | 22 Oct 2008←1 Year→20 Nov 2009 | Dissolved | |
