| Company | Timeline | Status | |
| Asu London Centre For Advanced Learning Director • Retired | 22 Feb 2023←2 Years 1 Month→17 Apr 2025 | Active | |
| Ice Benevolent Fund Director • Chartered Civil Engineer | 1 Jan 2023←2 Years 11 Months→Current | Active | |
| Bath Court Investment Company Limited Director • Chartered Civil Engineer | 1 Jun 2020←5 Years→Current | Active | |
| The Construction Industry Council Director • Civil Engineer | 22 Feb 2017←1 Year 4 Months→26 Jun 2018 | Active | |
| Engineers Without Borders UK Director • Engineer | 24 Oct 2010←6 Years→5 Jan 2017 | Active | |
| Thomas Telford Limited Director • Civil Engineer | 4 Nov 2004←5 Years→22 Sep 2010 | Active | |
| Gardiner & Theobald LLP Non-designated LLP Member • Unreported | 1 May 2004←1 Month→31 May 2004 | Active | |
Thomas Telford (Holdings) Limited Director • Civil Engineer | 4 Nov 2003←6 Years→23 Sep 2010 | Dissolved | |
| Crossrail Limited Director • Chartered Civil Engineer | 1 Aug 2001←1 Year 1 Month→27 Sep 2002 | Active | |
| Redbourn Management Solutions Ltd Director • Company Director | 9 Mar 1999←25 Years→5 Nov 2024 | Dissolved | |
