| Company | Timeline | Status | |
| Spirent Holdings Limited Director • Director | 17 Oct 1997←2 Years 2 Months→1 Jan 2000 | Active | |
| PG Data Technology Limited Director • Director | 1 Jan 1997←3 Years→1 Jan 2000 | Liquidation | |
| Herald Investment Trust Plc Director • Finance Director | 11 Jan 1994←10 Years→14 Apr 2004 | Active | |
| PG International Limited Director • Director | 19 Aug 1992←7 Years→1 Jan 2000 | Active | |
| Cambridge Analytical Group Limited Director • Director | 30 May 1992←7 Years→1 Jan 2000 | Active | |
| Wasp Membranes Limited Director • Director | 30 May 1992←7 Years→1 Jan 2000 | Active | |
| Swap Director • Director | 30 May 1992←7 Years→18 Oct 1999 | Active | |
| Staeng Limited Director • Director | 30 May 1992←7 Years→1 Jan 2000 | Active | |
| Spirent Limited Director • Director | 30 May 1992←7 Years→1 Jan 2000 | Active | |
| Amphenol Thermometrics (UK) Limited Director • Director | 11 May 1992←7 Years→1 Jan 2000 | Active | |
