| Company | Timeline | Status | |
| Oliver Twinsafe Valves Limited Director • Unreported | 1 Mar 2019←6 Years→Current | Active | |
| Oliver Valves Limited Director • Unreported | 1 Mar 2019←6 Years→Current | Active | |
| Oliver Twinsafe Valves Limited Director • Engineering Director | 9 Jun 2000←6 Years→1 Jan 2007 | Active | |
| Oliver Valvetek Limited Director • Unreported | 14 Mar 1995←30 Years→Current | Active | |
