Volver a Blog John Mitchison 23 abril, 2019 John has extensive in-depth knowledge of the data and marketing industry, with over 20 years of experience in both. He has worked closely with industry to give advice and support to organisations dealing with the changes affecting their businesses, as well as contributing to any industry and government working groups and committees. Prior to joining the DMA, John worked at Acxiom and before that the Daily Telegraph, where his roles involved managing large data campaigns.