Public procurement can be a key tool in driving the development of innovative goods and services on the European market. The European Commission has decided to launch the “Big Buyers Working Together” project to support collaboration between public buyers with strong purchasing power and promote the wider use of strategic public procurement for innovative and sustainable solutions. By working together and pooling their resources, cities, central purchasing bodies, and other major public buyers can maximise their market power and impact. Under the Big Buyers Working Together project ten communities of practice will be created. Each community of practice will be devoted to the purchase of a specific product, work or service where European collaboration is needed. To support the process of developing more strategic procurement approaches, public buyers will meet regularly online and in person.