The data revolution is changing the way the World Bank collects, analyzes and uses big data to monitor and achieve the Sustainable Development Goals. Big Data needs traditional data to ground truth and calibrate big data algorithms for robust analytical insights. The World Bank has valuable expertise in development data and sectors, as well as world class knowledge and convening power to effectively lead public-private collaborations to prepare our country clients with capacities to effectively put big data into action toward better polices, services and citizen engagement to deliver on the 2030 agenda.