Kostas Kastrantas is co-founder and partner of Agroknow. He holds a diploma in Electrical & Computer Engineering from the Polytechnic School of Aristotle University of Thessaloniki, Greece (2002). He also holds a MSc. on eLearning from the University of Piraeus, Greece (2007). Kostas has a long working record in research and academic settings with teams specializing in educational repositories and e-learning applications, and strong experience in developing Web-based applications and online ontology-based and metadata applications.