| Company | Timeline | Status | |
| New Pinehurst Residents Association (Cambridge) Limited Director • Retired | 11 Dec 2006←1 Year 11 Months→9 Nov 2008 | Active | |
| Aquila Investments Limited Director • Retired Bursar | 29 Nov 1998←15 Years→22 May 2014 | Active | |
| Cambridge Enterprise Limited Director • Consultant And College Fellow | 4 Jan 1992←9 Years→31 Jul 2001 | Active | |
| St. John's Innovation Centre Limited Director • Consultant | 31 Dec 1991←4 Years→30 Sep 1996 | Active | |
| Granary Court (Madingley) Limited Director • Consultant | 21 Nov 1991←27 Years→3 Jun 2019 | Active | |
| Aquivar Management Services Limited Director • Retired | 14 Nov 1991←29 Days→13 Dec 1991 | Active | |
