| Company | Timeline | Status | |
| Cornwall Community Foundation Director • Company Director | 15 Sep 2003←2 Years 11 Months→23 Aug 2006 | Active | |
| Cornwall Development Company Ltd Director • Retired | 11 Jan 1999←1 Year 11 Months→2 Jan 2001 | Active | |
| English China Clays Director • Company Director | 1 Jan 1995←3 Years→30 Sep 1998 | Active | |
| Imerys UK Pension Fund Trustees Limited Director • Company Director | 26 May 1994←1 Year 8 Months→13 Feb 1996 | Active | |
| Imerys Minerals Limited Director • Company Director | 16 Jan 1993←5 Years→30 Sep 1998 | Active | |
| Wheal Martyn Enterprises Limited Director • Retired | 23 Sep 1992←16 Years→26 Feb 2009 | Active | |
Groundwork South West Director • Director | 26 Jul 1992←4 Years→28 Jan 1997 | Dissolved | |
| Wheal Martyn Trust Director • Retired | 20 Jul 1992←16 Years→26 Feb 2009 | Active | |
| The Kaolin And Ball Clay Association (UK) Director • Company Director | 8 Oct 1991←7 Years→24 Feb 1999 | Active | |
| The Kaolin And Ball Clay Association (UK) Director • Unreported | 1 Jan 1970←29 Years→24 Feb 1999 | Active | |
