| Company | Timeline | Status | |
NSCC Limited Director • Technical Director | 1 Dec 1993←9 Years→9 Dec 2002 | Dissolved | |
| The Mastic Asphalt Council Limited Secretary • Unreported | 1 Jul 1992←23 Years→27 Apr 2016 | Active | |
| Institute Of Asphalt Technology(The) Director • Technical Director | 31 May 1992←11 Months→19 May 1993 | Active | |
