 Media Molecule (acquired by Sony Computer Entertainment in 2010), Lionhead Studios (acquired by Microsoft Game Studios in 2006, closure announced on 7 March 2016), Hello Games, Criterion Games (acquired by Electronic Arts in 2004), Ghost Games UK (founded in 2013 by Electronic Arts), and Bullfrog Productions (acquired by Electronic Arts in 1995, closed in 2001) have helped the town become a centre for video game production.The bus chassis factory of the Alexander Dennis (established as Dennis Specialist Vehicles) and fire engine bodywork factory John Dennis Coachbuilders are also in the town as well as military vehicle builders Automotive Technik.The Surrey Research Park contains a number of world leading companies including satellite manufacturers Surrey Satellite Technology Ltd and BOC, part of The Linde Group the largest provider of industrial, medical and specialist gases in the UK and Ireland.