| Company | Timeline | Status | |
| Brett's Storage Limited Director • Director | 30 Jun 2022←3 Years→Current | Active | |
| Darke Investments Limited Director • Director | 6 Mar 2019←6 Years→Current | Active | |
| Brett Darke Groundworks Limited Director • Director | 19 Jun 2009←16 Years→Current | Active | |
| Argyll Mews Management Company Limited Director • Property Owner Groundworks | 21 May 2005←11 Years→2 Feb 2017 | Active | |
