| Company | Timeline | Status | |
| Westfield Farm Kellet Management Limited Director • University Education | 1 Jul 2006←19 Years→Current | Active | |
| Rail Safety And Standards Board Limited Director • University Professor | 1 Apr 2003←3 Years→30 Mar 2007 | Active | |
| Railway Safety Director • University Professor | 12 Feb 2001←2 Years 1 Month→1 Apr 2003 | Active | |
