| Company | Timeline | Status | |
| CPL Investments Ltd Director • Architect | 23 Sep 2013←12 Years→Current | Active | |
| Holmes Miller Ltd Director • Architect | 2 Jun 2011←2 Years 10 Months→31 Mar 2014 | Active | |
| Wren Insurance Association Limited(The) Director • Architect | 28 Mar 2007←8 Years→23 Mar 2016 | Active | |
| Wren Insurance Association Limited(The) Director • Architect | 31 Mar 2004←2 Years→5 Apr 2006 | Active | |
| Glasgow Sculpture Studios Limited Director • Architect | 9 Mar 1999←2 Years 9 Months→10 Dec 2001 | Active | |
| Ranfurly Estates Limited Director • Architect | 15 Dec 1998←15 Years→31 Dec 2013 | Active | |
| Holmes Miller International Limited Director • Architect | 30 Apr 1990←34 Years→31 Mar 2025 | Active | |
