| Company | Timeline | Status | |
| Romney Hythe & Dymchurch Railway Public Limited Company Director • Retired | 24 Jan 2019←2 Years 10 Months→6 Dec 2021 | Converted/Closed | |
| Positive Impact Management Solutions Ltd Director • Director | 26 Apr 2013←10 Years→28 Feb 2024 | Dissolved | |
| The Herons Brook Management Company Limited Secretary • Director | 15 Sep 2005←7 Years→15 Mar 2013 | Active | |
| West Anglia Great Northern Railway Limited Director • Operations Director | 14 Jan 2002←2 Years→16 Jan 2004 | Active | |
| Silverlink Train Services Limited Director • Operations Director | 14 Jan 2002←2 Years→16 Jan 2004 | Active | |
| Ne No. 3 Limited Director • Operations Director | 14 Jan 2002←2 Years→16 Jan 2004 | Active | |
| Crossrail Limited Director • Executive Director | 1 Aug 2001←1 Month→20 Sep 2001 | Active | |
Former Iro Director • Director, Technical Services | 8 Feb 2000←4 Years→1 Jul 2004 | Dissolved | |
| Se Trains Limited Director • Technical Services Director | 20 Oct 1999←1 Year 10 Months→13 Sep 2001 | Active | |
| South Western Railway Limited Director • Technical Services Director | 20 Oct 1999←1 Year 10 Months→13 Sep 2001 | Active | |
