| Company | Timeline | Status | |
| The Worshipful Company Of Lightmongers Charitable Trust Limited Director • Retired | 25 Nov 2024←1 Year→Current | Active | |
| Tech Optics First Company Limited Director • Director | 17 Sep 2009←10 Years→1 Jun 2020 | Dissolved | |
| Tech Optics Limited Director • Director | 30 Jul 2009←10 Years→1 Jun 2020 | Active | |
| Lumicom Limited Director • Managing Director | 6 Sep 2005←1 Year 12 Months→3 Sep 2007 | Active | |
| Sustainalite Ltd Director • Company Director | 29 Mar 2004←2 Years 2 Months→1 Jun 2006 | Active | |
| Lighting Industry Federation Limited Director • Managing Director | 14 Mar 2002←5 Years→17 Aug 2007 | Active | |
| Holophane Lighting Limited Director • Managing Director | 18 Dec 1998←8 Years→20 Nov 2007 | Active | |
| Luxfab Limited Director • Managing Director | 1 Jul 1998←9 Years→20 Nov 2007 | Active | |
| Holophane Europe Limited Director • Managing Director | 1 Jul 1998←9 Years→20 Nov 2007 | Active | |
| Recall Limited Director • Director | 26 May 1995←1 Year 5 Months→31 Oct 1996 | Liquidation | |
