| Company | Timeline | Status | |
| Road Emulsion Association Limited Director • Civil Engineer | 10 Mar 1999←9 Months→31 Dec 1999 | Active | |
| Road Emulsion Association Limited Director • Civil Engineer | 30 Apr 1992←→18 Mar 1992 | Active | |
| The Road Surface Treatments Association Limited Director • Civil Engineer | 21 Mar 1992←7 Years→7 Oct 1999 | Active | |
