John Davies leads the Semantic Technology research group at BT. Current interests centre around the application of semantic web technology to business intelligence, information integration, knowledge management and service-oriented environments. He is Project Director of the 12m ACTIVE EU integrated project. He co-founded the European Semantic Web conference series. He is also chairman of the European Semantic Technology Conference and a Vice-President of the Semantic Technology Institute. He chairs the NESSI Semantic Technology working group. He has written and edited many papers and books in the areas of the semantic technology, web-based information management and knowledge management; and has served on the program committee of numerous conferences in these and related areas. He is a Fellow of the British Computer Society and a Chartered Engineer. Earlier research at BT let to the development of a set of knowledge management tools which are the subject of a number of patents. These tools were spun out of BT and are now marketed by infonic Ltd, of which Dr. Davies is Group Technical Advisor. Dr, Davies received the BT Award for Technology Entrepreneurship for his contribution to the creation of infonic.

Dieter Fensel is a German researcher in languages and the semantic web. He is a professor at the University of Innsbruck and the director of the Semantic Technologies Institute Innsbruck, which is a research group at the university.

Frank van Harmelen is the editor of Towards the Semantic Web: Ontology-driven Knowledge Management, published by Wiley.