| Company | Timeline | Status | |
| South Portway Management Limited Director • Managing Director | 14 Nov 2017←8 Years→Current | Active | |
| Iolight Limited Director • Chartered Mechanical Engineer | 10 Mar 2015←10 Years→Current | Active | |
| Sarum Scientific Limited Director • Chartered Engineer Chartered A | 1 Jul 2004←21 Years→Current | Active | |
| Nanosight Limited Director • Chartered Mechanical Engineer | 1 Feb 2004←8 Years→17 Apr 2012 | Dissolved | |
| Sarum Precision Hydraulics Limited Director • Unreported | 4 Dec 2003←22 Years→Current | Active | |
| Portway Design LLP Designated LLP Member • Unreported | 25 Jul 2002←23 Years→Current | Active | |
| Centre One Management Limited Secretary • Unreported | 1 Jul 1995←12 Years→2 Aug 2007 | Active | |
| Sarum Hydraulics Limited Director • Chartered Engineer | 27 Mar 1995←30 Years→Current | Active | |
| Centre One Management Limited Director • Chartered Accountant/engineer | 11 Jan 1994←31 Years→Current | Active | |
| Portway Precision Limited Director • Chartered Accountant/engineer | 28 Dec 1990←35 Years→Current | Active | |
