| Company | Timeline | Status | |
| Barrier Limited Director • Contracts Manager | 21 May 1992←12 Years→27 May 2004 | Active | |
| Barrier (Offshore) Engineering Limited Director • Contracts Manager | 26 Sep 1991←9 Years→12 Oct 2000 | Liquidation | |
| Barrier (Offshore) Engineering Limited Director • Unreported | 1 Jan 1970←30 Years→12 Oct 2000 | Liquidation | |
