| Company | Timeline | Status | |
| Aecom Corporation Holdings (UK) Limited Director • Chartered Engineer | 25 Mar 2009←1 Year 9 Months→24 Dec 2010 | Active | |
| Aecom Infrastructure & Environment UK Limited Director • Chartered Engineer | 25 Mar 2009←1 Year 9 Months→23 Dec 2010 | Active | |
| Ferguson & McIlveen Holdings Limited Director • Chartered Engineer | 1 Nov 2006←4 Years→24 Dec 2010 | Dissolved | |
| Scott Wilson Scotland Ltd Director • Chartered Engineer | 1 May 1992←18 Years→24 Dec 2010 | Active | |
