| Company | Timeline | Status | |
| Copernicus Security Limited Director • Security Professional | 16 Aug 2012←8 Years→18 May 2021 | Dissolved | |
| Concrete Information Limited Director • Chartered Civil Engineer | 26 Mar 2001←3 Months→18 Jul 2001 | Active | |
| Concrete Training Limited Director • Chartered Civil Engineer | 26 Mar 2001←3 Months→18 Jul 2001 | Active | |
| Concrete On-Line Limited Director • Chartered Civil Engineer | 10 Apr 2000←1 Year 3 Months→18 Jul 2001 | Active | |
| The International Glassfibre Reinforced Concrete Association Secretary • Chief Executive | 3 Dec 1998←2 Years 2 Months→14 Feb 2001 | Active | |
| Concrete Advisory Service Limited Director • Chartered Civil Engineer | 18 Jan 1997←4 Years→18 Jul 2001 | Active | |
| Concrete Society Limited(The) Secretary • Unreported | 18 Jan 1997←4 Years→18 Jul 2001 | Active | |
