| Company | Timeline | Status | |
| David Nicholls Designs Ltd Director • Director | 16 May 2021←4 Years→Current | Active | |
| D.G.N. Design Limited Secretary • Director/engineer | 31 Dec 1998←9 Years→10 Jan 2008 | Liquidation | |
| D.G.N. Design Limited Director • Director/engineer | 21 May 1996←29 Years→Current | Liquidation | |
