Gregoris Mentzas is a full professor of Management Information Systems at the School of Electrical and Computer Engineering, National Technical University of Athens (NTUA), and a director of the Information Management Unit (IMU). His research concerns big data management in multi-cloud environments and prescriptive analytics in Industry 4.0. He has published 4 books and more than 200 papers in international peer-reviewed journals and conferences. He has five best papers awards; sits on the editorial board of five international journals; and has served as chair, co-chair, or program committee member in more than 55 international conferences. He has led or contributed to more than 50 European research and development projects conducted in collaboration with SAP, IBM, HP, Siemens, Software AG, ATOS, and other leading technology firms. Research carried out by his group has led to the establishment of three internet technology companies. His experience includes 12 years of management consulting in corporate strategy and information systems strategy. He holds a Diploma Degree in Engineering (1984) and a PhD in Operations Research and Information Systems (1988), both from the NTUA. During 2006-2009, he served as member of the Board of Directors of the Institute of Communication and Computer Systems.