Gerald Barclay Thompson (born 15 February 1951) is a British businessman who founded the holographic products manufacturers AH Prismatic in the 1980s.  He was the Managing Director and co-owner of the right-wing media monitoring company Newswatch  until it was dissolved on 29 December 2008. 
Shortly after Newswatch was founded, Thompson was quoted by the Guardian's Roy Greenslade as saying: 'Today's media has enjoyed an easy ride, and thinks it can get away with murder. But, from now on, it will have to think twice.' 
Newswatch's predecessor Minotaur Media Tracking produced a number of reports for the Eurosceptic think-tank Global Britain and the Centre for Policy Studies. The great majority of these reports alleged a bias in favour of EU integration in the UK media (particularly the BBC) and several alleged a broader bias against right-wing politics and the Conservative Party.
- LinkedIn, Barclay Thompson [Accessed 14 January 2009]
- Screengrab of Barclay Thompson's CV. Taken from <http://www.news-watch.co.uk/jubb.php> on 27 November 2009; Companies House, Newswatch UK Ltd Annual Returns, made up to 6 September 2008
- Companies House, Newswatch UK Ltd Company Filing History [Accessed 14 January 2009]
- Roy Greenslade, 'Media bias is in the eye of the beholder', Guardian Media Blog, 10 October 2007