| Company | Timeline | Status | |
| Bardhan Research And Education Trust Of Rotherham Director • Professor Of Glass Technology  | 29 Jan 2000←16 Years→20 Aug 2016  | Active  | |
| Association For The History Of Glass, Limited(The) Director • Proffesor Of Materials  | 31 Dec 1992←9 Years→20 Nov 2002  | Active  | |
