| Company | Timeline | Status | |
| Bentley Holdings Limited Director • Director | 20 Dec 2000←12 Years→28 Jun 2013 | Active | |
| Mott Macdonald Bentley Ltd Director • Engineering Director | 22 Mar 2000←12 Years→25 May 2012 | Active | |
| J.N. Bentley Limited Director • Engineering Director | 28 May 1999←13 Years→31 Mar 2013 | Active | |
