| Company | Timeline | Status | |
| Mount Hill Management Services Ltd Director • Contractor | 22 Jun 2006←1 Year 8 Months→29 Feb 2008 | Active | |
| S A Houston & Co Limited Director • Builder/developer | 25 Sep 2002←23 Years→Current | Active | |
| S A Houston & Co Limited Director • Builder/developer | 25 Sep 2002←21 Years→30 Aug 2024 | Active | |
