Grey Matter Design Limited is a Hong Kong-based company specializing in product design services, it was founded by Charlie Bolton in 2014.



Charlie is a British-born designer who studied consumer product design at Coventry University. He has worked in Paris, Eindhoven, London, Hong Kong and Shenzhen for a number of leading consumer electronics brands. He has experience in a wide range of product categories, including mobile phones, audio, wearables, televisions and connected homes.


Sketch concepts from a variety of projects.