| Company | Timeline | Status | |
| Durtnell (Holdings) Limited Director • Director | 8 Oct 2024←1 Year→Current | Active | |
| Sevenoaks Preparatory School Limited Director • Managing Director | 11 Oct 2017←8 Years→Current | Active | |
| Durtnell Joinery Limited Director • Builder | 15 Jul 2016←8 Years→17 Sep 2024 | Dissolved | |
| Cheesman Joinery Limited Director • Builder | 30 Mar 2010←13 Years→19 Aug 2023 | Dissolved | |
| R Durtnell & Sons Limited Director • Director | 1 Apr 2008←17 Years→Current | Active | |
| Durtnell Limited Director • Director | 25 Sep 2007←18 Years→Current | Active | |
| Darenth River Ballast Company Limited(The) Director • Builder | 25 Sep 2007←18 Years→Current | Active | |
