| Company | Timeline | Status | |
| Xbim Ltd Director • Professor | 15 Mar 2016←9 Years→Current | Active | |
| Xbim Ltd Director • Professor | 15 Mar 2016←8 Years→26 Jul 2024 | Active | |
| Hubexo North UK Limited Director • Research And Development Direc | 7 Jun 2004←3 Years→27 Jul 2007 | Active | |
| Building Design Software Limited Director • University Professor | 31 Aug 1991←11 Years→30 Sep 2002 | Dissolved | |
