| Company | Timeline | Status | |
| Aecom Corporation Holdings (UK) Limited Director • Finance Director | 20 Oct 2010←1 Year→10 Nov 2011 | Active | |
| Aecom Infrastructure & Environment UK Limited Director • Finance Director | 20 Oct 2010←1 Year→10 Nov 2011 | Active | |
| URS Corporation Limited Director • Director | 4 Dec 2008←2 Years 11 Months→10 Nov 2011 | Active | |
| URS Europe Limited Director • Director | 24 Nov 2008←2 Years 11 Months→10 Nov 2011 | Active | |
| Woodward-Clyde Limited Director • Director | 24 Nov 2008←2 Years 11 Months→10 Nov 2011 | Dissolved | |
| Dames & Moore Limited Director • Director | 24 Nov 2008←2 Years 11 Months→10 Nov 2011 | Dissolved | |
| Thorburn Colquhoun Holdings Limited Director • Director | 24 Nov 2008←2 Years 11 Months→10 Nov 2011 | Active | |
