| Company | Timeline | Status | |
| Canterbury Archaeological Trust Limited Director • Chartered Structural Engineer | 4 Oct 2004←2 Years 11 Months→21 Sep 2007 | Active | |
| B S F Consulting Engineers Limited Director • Consulting Engineer | 1 Sep 1996←3 Years→31 Jan 2000 | Active | |
| Kent College (Canterbury) Enterprises Limited Director • Consulting Engineer | 6 Jul 1992←5 Months→7 Dec 1992 | Active | |
| Kent Site Investigations Limited Director • Structural Engineer | 21 Sep 1991←5 Months→19 Feb 1992 | Active | |
| Bourncrete Holdings Limited Director • Structural Engineer | 31 Dec 1990←31 Years→7 Jun 2022 | Dissolved | |
