| Company | Timeline | Status | |
| PRCLT Company Limited Director • Director | 12 Feb 2024←1 Year 10 Months→Current | Active | |
| The Princess Royal Class Locomotive Trust Director • Trustee | 6 Feb 2024←1 Year 10 Months→Current | Active | |
| VJK Limited Director • Director | 16 Jan 2019←6 Years→Current | Active | |
| Whitehouse P.L.P Holdings Limited Director • Director | 24 Oct 2017←8 Years→Current | Active | |
| Whitehouse P.L.P Limited Director • Director | 12 Nov 2014←11 Years→Current | Active | |
| Ewart Holdings Limited Director • Director | 1 Jun 2006←14 Years→1 Mar 2021 | Active | |
Sloa Engineering Limited Director • Civil Engineering Contractor | 15 May 1995←1 Year 11 Months→30 Apr 1997 | Dissolved | |
| Mainline Steam Locomotive Operators Limited Director • Civil Engineer | 30 Mar 1995←1 Year 9 Months→11 Jan 1997 | Dissolved | |
| The Princess Royal Class Locomotive Trust Director • Company Director | 16 Sep 1994←13 Years→22 Jul 2008 | Active | |
| Midland Railway Enterprises Plc Director • Company Director | 2 Apr 1992←6 Months→9 Oct 1992 | Active | |
