| Company | Timeline | Status | |
| Whittlebury Community Broadband Ltd Director • Retired | 9 Feb 2021←1 Year 1 Month→5 Apr 2022 | Dissolved | |
The UK Consortium For Photonics & Optics Ltd Director • Director | 15 May 2008←2 Years 5 Months→8 Nov 2010 | Dissolved | |
| Optical Communication Services Limited Director • Manager | 1 Dec 2003←19 Years→31 Oct 2023 | Dissolved | |
| Photonics Leadership Limited Director • Director | 25 May 2001←11 Years→31 Jan 2013 | Active | |
| The Fibreoptic Industry Association Limited Director • Marketing Consultant | 11 May 1992←13 Years→8 Dec 2005 | Active | |
| Fiberoptic Transmission Technology Limited Director • Company Director | 14 Nov 1990←35 Years→Current | Liquidation | |
