| Company | Timeline | Status | |
| Lisnabrack Management Limited Director • Director | 22 Feb 2022←3 Years→Current | Active | |
| Roco Developments Limited Director • Director | 27 Apr 2018←7 Years→Current | Active | |
| Roco Property Limited Director • Director | 27 Apr 2018←7 Years→Current | Active | |
| Collins Rolston Architects Ltd Director • Architect | 28 Sep 2015←6 Years→26 Oct 2021 | Active | |
| Rolston Limited Director • Director | 15 May 2001←24 Years→Current | Active | |
