| Company | Timeline | Status | |
| Sir John Port's Charity Director • Company Director | 21 Jun 2002←6 Years→5 May 2009 | Active | |
| Repton School Director • Company Director | 21 Jun 2002←6 Years→5 May 2009 | Active | |
| Repton Preparatory School Director • Company Director | 21 Jun 2002←6 Years→5 May 2009 | Active | |
| Chamberlin Plc Director • Unreported | 10 Aug 1991←14 Years→31 Dec 2005 | Liquidation | |
| Petrel Limited Director • Director | 6 Jul 1991←6 Years→11 Jul 1997 | Active | |
| Fitter & Poulton Limited Director • Director | 6 Jul 1991←4 Years→29 Sep 1995 | Dissolved | |
| Fred Duncombe Limited Director • Director | 6 Jul 1991←6 Years→11 Jul 1997 | Dissolved | |
| Russell Ductile Castings Limited Director • Director | 6 Jul 1991←6 Years→11 Jul 1997 | In Administration | |
| Chamberlin & Hill Castings Limited Director • Director | 6 Jul 1991←6 Years→11 Jul 1997 | In Administration | |
| Chamberlin & Hill Ltd Director • Director | 6 Jul 1991←6 Years→11 Jul 1997 | Dissolved | |
