| Company | Timeline | Status | |
| David Brown Design Group Ltd Director • Lighting Designer | 17 Apr 2014←11 Years→Current | Active | |
Architectural Lighting Details Ltd Director • Director | 9 Jun 2011←7 Years→28 May 2019 | Dissolved | |
Quartz LC Ltd Director • Director | 9 Jun 2011←7 Years→28 May 2019 | Dissolved | |
David Brown Lighting Consultants Ltd Director • Designer | 5 Jul 2007←8 Years→2 Jun 2016 | Dissolved | |
