He was born in Hampshire. He is the son of Ian (born 1946) and Rosemary Postgate, who married in Horsham in 1968. His grandparents were Robert Postgate and Vera Barron, who married in 1934. He grew up in Cambridge. He has an older sister. He studied Politics at the University of Bristol from 1994 to 1997.
He joined the BBC in 2003. From 2007 to 2008 he was controller of BBC mobile. He became the Controller of BBC Research & Development, which employed around 150 people. He became Chief Technology Officer on 28 July 2014. The BBC's much-heralded Digital Media Initiative was scrapped, which had been planned to start by 2011.
He lives in Maida Vale.
- "Matthew Leigh POSTGATE - Personal Appointments (from Companies House)". beta.companieshouse.gov.uk. Retrieved 2017-03-12.
- "Matthew Postgate". Inside the BBC. Retrieved 2017-05-21.
- "BBC - Matthew Postgate appointed Chief Technology Officer to lead new division - Media Centre". bbc.co.uk. Retrieved 2017-03-12.