| Company | Timeline | Status | |
| Speyside Trust Director • Consulting Engineer | 21 May 2004←2 Years 9 Months→22 Feb 2007 | Active | |
| A.F. Cruden Associates Ltd Director • Civil And Structural Engineeer | 15 Mar 1995←18 Years→31 Oct 2013 | Dissolved | |
| Heraldic Properties Limited Director • Consultant Engineer | 23 Jan 1991←4 Years→14 Aug 1995 | Active | |
| Dinardo Practices Group Limited Director • Cons.engineer | 25 May 1990←6 Years→29 May 1996 | Active | |
| Dinardo Partnership Limited Director • Cons.engineer | 25 May 1990←5 Years→14 Aug 1995 | Active | |
| Dinardo Properties Limited Director • Consultant Engineer | 23 Mar 1990←5 Years→14 Aug 1995 | Active | |
