The Smart Cities Stakeholder Platform initiated by the European Commission (http://eu-smartcities.eu/) with the dual aim of i) identifying and spreading relevant information on technology solutions and needs required by practitioners and ii) providing information for policy support to the High Level Group and the European Commission. It is both a web-based and physical Platform open to anyone who registers on it. Backbone is the contributions by stakeholders in a bottom-up way, owned by the stakeholders. The Platform is one of the two governance bodies of the Smart Cities and Communities European Industrial Partnership (EIP).