Martin is The Head of Urban Development within Siemens Global Centre of Competence for Cities. This involves working with Mayors and leaders providing advice and support to cities as they strive to meet tough economic, social and environmental targets and looking at economic and technical models of delivering solutions at scale.

Martin was previously the Mayoral Advisor on the Environment to the Mayor of London, Boris Johnson. As Executive Director of Environment he also had responsibility for delivery of London’s Environmental Projects and Programmes.

As Managing Director of Cambridge Management & Research, an organisation working with a number of cities, Martin was a Special Advisor to The C40 Cities Group, Chaired by former Mayor of New York, Michael Bloomberg.

Martin is co-author of ‘Our Urban Future’ and ‘Better Cities, Better Life’ and the forthcoming book about ‘The Smart City in the Digital Age.’