| Company | Timeline | Status | |
| Clissold Developments Ltd Director • Company Director | 5 Jul 2024←1 Year 5 Months→Current | Active | |
| Mark Risner Consulting Ltd Director • Company Director | 20 Feb 2023←2 Years 10 Months→Current | Active | |
| Silen Developments Ltd Director • Director | 3 Feb 2023←2 Years 10 Months→Current | Active | |
| Silen Construction Ltd Director • Director | 14 Feb 2022←3 Years→Current | Active | |
| 14 Lisburn Road Management Company Limited Director • Architect | 29 Aug 2019←6 Years→Current | Active | |
| Risner Design Limited Director • Unreported | 16 Nov 2018←7 Years→Current | Active | |
