| Company | Timeline | Status | |
| A4a Art For Architecture Limited Director • Administration & Production | 25 Apr 2006←19 Years→Current | Active | |
| A4a Art For Architecture Limited Secretary • Unreported | 25 Apr 2006←19 Years→Current | Active | |
| John McKenna Sculpture Limited Director • Administration | 19 Apr 2002←23 Years→Current | Active | |
| John McKenna Sculpture Limited Secretary • Administration | 19 Apr 2002←23 Years→Current | Active | |
