| Company | Timeline | Status | |
| Collins Rolston Architects Ltd Director • Director | 28 Sep 2015←6 Years→26 Oct 2021 | Active | |
| Rolston Limited Director • Director | 15 May 2001←24 Years→Current | Active | |
| Rolston Limited Secretary • Unreported | 15 May 2001←24 Years→Current | Active | |
